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1
Olalekan, Adeyeye Samuel Ayofemi. "Effect of Smoking Methods and Natural Spices on Quality and Consumer Acceptance of Smoked Silver Catfish (Chrysichthys nigrodigitatus)." Recent Patents on Food, Nutrition & Agriculture 10, no. 2 (September 18, 2019): 152–63. http://dx.doi.org/10.2174/2212798410666181120124012.
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Aims and Background: Fish serves as a good source of dietary protein which is very inexpensive in relation to other animal protein foods and it is an excellent component of human diet. This study assessed the effects of smoking methods and natural spices on studied parameters and consumer acceptance of smoked silver catfish (Chrysichthys nigrodigitatus). Methods: One hundred samples of silver catfish were obtained by purposive sampling method. The fresh fish samples were smoked in two batches, the first batch was smoked with drum smoker and the second batch with oven smoker while the control was smoked without the natural spices. Rancidity indices (TVB-N, TMA-N, TBA and pH), microbiological analysis and sensory evaluation were carried out on smoked fish samples. The recent patents on edible fat blends (US20020031595A1), long chain fatty acids (WO2008085840A2) and esters of polyunsaturated fatty acids (US20090023808A1) helped in selecting the analytical methods. Results: The results showed that there was statistical significant difference (P≤0.05) between total volatile base-nitrogen, trimethylamine values and pH of the smoked silver catfish samples treated with different concentrations of clove, ginger and garlic paste and those samples which were not treated with clove, ginger and garlic. This study showed that smoking methods has effects on quality indices, microbial quality and consumer acceptance of smoked silver catfish. Clove, ginger and garlic have some anti-oxidative effects on rancidity indices of smoked silver catfish as there was inverse relationship between clove, ginger and garlic and values of peroxide, free fatty acid and thiobarbituric acid. This was also observed for the microbial quality of the smoked silver catfish. There was also inverse relationship between clove, ginger and garlic and all the sensory parameters except for texture and as the concentrations of the natural spices increase the values of the sensory parameters decrease. Conclusion: In conclusion, this study showed that smoking methods affects the studied parameters, microbial quality and consumer acceptance of smoked silver catfish. Addition of clove, ginger and garlic had anti-microbial and anti-oxidative effects on quality parameters of smoked silver catfish. There was also a negative correlation between clove, ginger and garlic and all the sensory parameters except for texture.
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Meutchieye, Felix, Henri Grisseur Djoukeng, Youssouf Jamilou Ngouyamsa, and Yacouba Manjeli. "Description of Freshwater Fish Traditional Smoking in the Western Region, Cameroon." Cameroon Journal of Experimental Biology 14, no. 1 (March 10, 2021): 61–64. http://dx.doi.org/10.4314/cajeb.v14i1.7.
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Western Cameroon is one of the regions most in needs of innovative and healthy solutions for freshwater fish conservation. This study aimed at evaluating the socio-economical characteristics of fish smokers and technical factors on the species smoked in the Noun Division. A total of 91 fish smokers were chosen. The socio-economic data were on age, gender, religion, number of dependents, marital status, ethnic group, education level, economic activities, smoking goals and workforce. The results of this study showed that fish smoking is practiced mainly by women (70%) which is common in Sub Sahara Africa small scale fish sector. The smokers are aged from 20 to 50 years (80%), married (92.2%) and taking care of a family of 1 to 10 persons (80%). These smokers are Muslim (74%), belonging to the Bamoun ethnic group (81%). They were also involved in other activities: agriculture (29%) and trade (1%). About 67% of the sampled smokers’ population had an experience of more than 10 years in the domain. The Purpose of smoking was largely sales (97%) and subsistence (3%). Nile tilapia (Oreochromis niloticus) was the most smoked species (36%), followed by African catfish (Clarias gariepinus) with a proportion of 32%. The average quantity of fresh fish smoked was 110 kg/day/smoker, with Oreochromis niloticus being more produced (60±4.74 kg/day/smoker). With regard to the smoking techniques used, hygiene measures were poorly respected. The major constraints revealed by the survey were that freshwater’s traditional fish smoking activities in Noun Division are influenced by gender, economic and cultural background. There is a lack of technical support material and financial means. Any implications for future investigations on health and food safety will be suitable for fresh fish smokers and the entire consumers.
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Sally, Saqbhani Puspa, Nabila Ukhty, Anhar Rozi, and Ikhsanul Khairi. "KARAKTERISTIK KIMIA DAN FISIKA IKAN LELE ASAP DENGAN BAHAN PEMBAKAR BERBEDA (STUDI KASUS UMKM UD SARONA KOTA BINJAI SUMATERA UTARA)." JURNAL PERIKANAN TROPIS 6, no. 2 (October 1, 2019): 109. http://dx.doi.org/10.35308/jpt.v6i2.2187.
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Catfish is one of the leading commodities in aquaculture in Indonesia. Catfish derivative products are currently very much developed, one of them was smoked catfish. The characteristics of smoked fish are influenced by several factors, including the type of firewood used. This study aims to examine the chemical and physical characteristics of smoked catfish with different burners. The smoking method used is heat fumigation. The parameters observed were proximate, pH value, phenol content, formaldehyde content, characteristics of color, texture and aroma. The results obtained, protein content, water content, ash content and fat content using laban wood are higher than rambutan wood 60.6%:58.8%; 6.65%:5.54%; 7.97%:7.29%; 20.4%;14.6% repectively. The phenol value of smoked fish using laban wood is higher than that of rambutan wood 0.2401ppm:0.2204ppm respectively. Formaldehyde levels in both types of wood are negative. The characteristics of the two smoked fish are the same in texture, aroma, pH and temperature parameters were solid texture, typical aroma of smoked fish, pH value 6.7 with a temperature of 80-100oC respectively. But the color of smoked fish by burning laban wood is bright brown while the rambutan wood is shiny brown.
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ADEOSUN, O., F. E. OLAIFA, and G. R. AKANDE. "AMINO ACID PROFILE AND POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) OF SMOKED FARMED CLARIAS GARIEPINUS (BURCHELL, 1822) RAISED UNDER DIFFERENT CULTURE SYSTEMS IN IBADAN, NIGERIA." Journal of Agricultural Science and Environment 16, no. 2 (November 22, 2017): 69–78. http://dx.doi.org/10.51406/jagse.v16i2.1709.
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Fish food quality and safety is critical to consumers due to its public health implication. To exploit huge export opportunities for smoked farmed catfish, there is need for strict adherence to international quality and safety standards. This paper examined amino acid profile and polycyclic aromatic hydrocarbons (PAHs) of smoked farmed catfish Clarias gariepinus raised under different culture systems with a view to determining its quality and safety. Six farms with the two most common fish culture systems (3 concrete tanks (CTs) and 3 earthen ponds (EPs) were purposively selected based on frequency of harvest and yield. Fish samples (500±10g) obtained from these farms after 4 months of culture were processed, smoked, packaged and stored for 36 weeks. Amino acid profile in farmed fresh and smoked C. gariepinus was determined at 12, 24 and 36 weeks of storage and polycyclic aromatic hydrocarbons (PAH) was determined at 0 and 16 weeks of storage. These were compared with traditional smoked wild catfish obtained from local fish processor (LFP). The amino acids with highest concentrations (mg/g) found in this study were leucine (22.16 - 31.61 and 13.89 – 29.64), lysine (16.31 – 20.19 and 9.86 – 18.08), arginine (15.16 – 12.29 and 8.97 - 15.86), valine (15.96 – 21.35 and 9.68 - 19.36 ) and asparagine (19.66 – 21.61 and 12.36 mg/g – 20.71mg/g) for fresh and smoked catfish respectively. Levels of other amino acids ranged from 1.5mg/g to 9.98mg/g in smoked fish and 2.95mg/g to 12.21mg/g in fresh fish. The mean total poly aromatic hydrocarbons in smoked catfish at 16 weeks of storage were 0.039±0.004µg/kg, 0.034±0.005 µg/kg and 0.053±0.005 µg/kg for EP, CT and LFP, respectively. Therefore smoked farmed catfish raised under different culture systems still contain essential amino acids and Benzo(a)pyrene which is a carcinogen was not at detectable level in the samples.
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Stolbunov, I. A., V. A. Gusakov, Tran Duc Dien, and Nguyen Thi Hai Thanh. "Food Spectrum, Trophic and Length-Weight Characteristics of Nonindigenous Suckermouth Armored Catfishes Pterygoplichthys spp. (Loricariidae) in Vietnam." Inland Water Biology 14, no. 5 (September 2021): 597–605. http://dx.doi.org/10.1134/s1995082921050163.
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Abstract The food spectrum and trophic and length–weight characteristics of an invasive species, South American suckermouth armored catfishes Pterygoplichthys spp. (Loricariidae), from lotic and lentic inland waters of Vietnam have been studied. It is found that the diet of suckermouth armored catfishes consists of plant and animal food, as well as organic detritus. According to the predominant type and pattern of feeding, suckermouth armored catfishes can be classified as detritivore gatherers (janitor). Some specimens of catfish with a high consumption of animal food have been identified. It is noted that invasive suckermouth armored catfishes can be a significant food competitor for aboriginal fish species; detritivores; and, possibly, benthophages in the lotic and lentic inland waters of Vietnam.
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Diharmi, Andarini, Dewi Fortuna Ayu, and Akhyar Ali. "Characterization of the oil from the abdomen part of smoked catfish (Pangasius hypophthalmus) processing by-product." Jurnal Pengolahan Hasil Perikanan Indonesia 22, no. 1 (April 30, 2019): 187. http://dx.doi.org/10.17844/jphpi.v22i1.25897.
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Smoke catfish (Pangasius hypophthalmus) processing place produces waste in the form of fish entrails. Abdominal fat is the main component of fish entrails and is a source of fish oil. This study was aimed to determine the physicochemical characteristics and composition the catfish abdominal fat. The oil was extracted by rendering the abdominal fat at 70°C for 5 h followed up by purification through bentonite and active charcoal. Crude catfish oil was observed to be semi-solid in texture, yellow and fishy. The purification improved the characteristics of the fish oil. The purified fish oil was white and less fishy. Furthermore, the purification step reduced the free fatty acid content, the acid number and peroxide value up to 11; 4 and 3 fold, respectively. Palmitic, stearic and myristic acid dominated saturated fatty acid group, representing 26.22; 5.06 and 2.85% of the total fat, respectively. Meanwhile, oleic and linoleic represented 40.14 and 19.97 of the total fat, respectively and were the dominant fatty acid of the unsaturated fatty acid group.
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Ayu, Dewi Fortuna, Andarini Diharmi, and Akhyar Ali. "Characterization of the oil from the abdomen part of smoked catfish (Pangasius hypophthalmus) processing by-product." Jurnal Pengolahan Hasil Perikanan Indonesia 22, no. 1 (April 30, 2019): 187–97. http://dx.doi.org/10.17844/jphpi.v22i1.26473.
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Smoke catfish (Pangasius hypophthalmus) processing place produces waste in the form of fish entrails. Abdominal fat is the main component of fish entrails and is a source of fish oil. This study was aimed to determine the physicochemical characteristics and composition the catfish abdominal fat. The oil was extracted by rendering the abdominal fat at 70°C for 5 h followed up by purification through bentonite and active charcoal. Crude catfish oil was observed to be semi-solid in texture, yellow and fishy. The purification improved the characteristics of the fish oil. The purified fish oil was white and less fishy. Furthermore, the purification step reduced the free fatty acid content, the acid number and peroxide value up to 11; 4 and 3 fold, respectively. Palmitic, stearic and myristic acid dominated saturated fatty acid group, representing 26.22; 5.06 and 2.85% of the total fat, respectively. Meanwhile, oleic and linoleic represented 40.14 and 19.97 of the total fat, respectively and were the dominant fatty acid of the unsaturated fatty acid group.
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Adah, P. M., L. U. Onyia, and R. A. Obande. "Fish Hybridization in Some Catfishes: A Review." Biotechnology(Faisalabad) 13, no. 6 (October 15, 2014): 248–51. http://dx.doi.org/10.3923/biotech.2014.248.251.
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Fitrawati, Rahmi AM, Muhamad Musbah, Muliadin Muliadin, Roni Hermawan, Renol Renol, and Mohammad Akbar. "PENGARUH KONSENTRASI PROTEIN IKAN LELE TERHADAP KANDUNGAN KIMIA DAN ORGANOLEPTIK KERUPUK IKAN." Jurnal Pengolahan Pangan 3, no. 1 (June 30, 2018): 28–31. http://dx.doi.org/10.31970/pangan.v3i1.10.
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Catfish is one of potential fisheries products in Central Sulawesi, but this fact is not in line with community consumption level. Catfishes contain protein and fatty acid which are good for health. The use of catfishes as fish chips become one of the way out to increase the community consumption level. This research aims at knowing the effect of catfishes protein concentration toward chemical content (water content, ash content) and organoleptics. The research result shows that the treatment of catfishes protein concentration is unsignifficantly effect the water and ash content, besides the result of hedonic test shows that the concentration signifficantly effect the taste, the smell and the texture of catfish chips but unsignifficanly effect the colour of it. The treatment by adding 200 g of catfish was being the panels’ most favorite treatment with a score of 4.5 or with the rounding 5 indicated as favored.
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Vlasov, V., and I. Kulkova. "The cultivation of sharptooth catfish (Clarias gariepinus burchell) when the use of compound feed with different protein level." Glavnyj zootehnik (Head of Animal Breeding), no. 4 (April 1, 2020): 58–67. http://dx.doi.org/10.33920/sel-03-2004-08.
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It has been found as a result of the research that sharptooth catfishes grown on a highprotein diet (the 2nd variant) had a higher growth rate compared to fish that consumed low-protein, but cheap feed (the 1st variant). The average daily gains of fish in the 2nd variant of the experiment corresponded to 6,1 g/day, which was 3,4 g higher compared to the herdmates of the 1st variant. During the experiment period (60 days) the individual weight of catfishes that consumed low-protein compound feed has been increased by 160 g while fish have been grown on high-protein compound feed added 364 g, which was 2,3 times more. In the end the higher yield of fish products per unit of water area has been obtained in the 2nd variant of the experiment 271,2 kg/m[sup]3[/sup] against 118,4 kg/m[sup]3[/sup] in the 1st variant. However, economic analysis has shown that the use of expensive high-protein feed does not give a significant effect. The additional profit in the 1st variant was only 12 %. Catfishes have been grown on high-protein compound feed had the best conformation and technological indicators. They differed from their herdmates from the other variant with higher indicators of edible body parts their body contained less internal fat. High growth and better physiological condition of catfishes that consumed higher-quality protein feed are confirmed by interior, hematological and biochemical indicators. Their blood had a higher concentration of protein, hemoglobin, and fewer white blood cells. In catfishes of the 1st variant the higher level of AST and ALT enzymes has been found in the blood serum, which indicates a low protein metabolism, increased urea synthesis and the high load of work of the liver.
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Swastawati, Fronthea. "STUDI KELAYAKAN DAN EFISIENSI USAHA PENGASAPAN IKAN DENGAN ASAP CAIR LIMBAH PERTANIAN." JURNAL DINAMIKA EKONOMI PEMBANGUNAN 1, no. 1 (February 8, 2012): 18. http://dx.doi.org/10.14710/jdep.1.1.18-24.
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The objective of this research is to assess feasibility study of smoking fish bussines with liquid smoke agriculture waste as one of the alternative substitute to traditional smoking industries which have some weakneses in term of safety and enviromental. The Method used was description case study with questionnaire as instrument to obtain data. Estimation model of double regression analysis was applied to interpretate the results. The production liquid of smoked using agriculture waste were feasible values NPV of 108.461.057; IRR (%) = 33,29%; and PP = 2,8 year. Whereas Catfish, Skipjack, and Stingray smoked fish values of NPV = 63,35; IRR = 24,74; PP = 3,31; NPV = 54,31; IRR = 23,33; PP = 3,35; NPV = 45,07; IRR = 21,50; PP = 3,46 respectively. The production of liquid smoked agriculture waste and smoked fish using liquid smoked agriculture waste were as it produce feasible excellence, safety product and acceptable to consumers and also profitable. Break Event Point also could be reached in a short period of time.
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Swastawati, Fronthea, Titi Surti, Tri Winarni Agustini, and Putut Har Riyadi. "BENZO (α) PYRENE POTENTIAL ANALYSIS ON SMOKED FISH (CASE STUDY: TRADITIONAL METHOD AND SMOKING KILN)." KnE Life Sciences 2, no. 1 (February 1, 2015): 156. http://dx.doi.org/10.18502/kls.v1i0.99.
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Benzo(α)pyrene were determined by Gass Chromatography Mass Spectrofotometry method on nile, tilapia, milkfish, little tuna, narrow bared spanish mackerel, marine catfish, canine catfish and stingray processed by traditional method and the used of smoking kiln. Eight samples of smoked fish processed by traditional method showed a higher BaP levels ranging from 0.03 to 4.58 ppb. Whereas, BaP levels on smoked fish processed by smoking kiln were found in average lower than traditional method ranging from 0.01 to 3.04 ppb. Different fish species gave very significant different (P<0.01) to BaP levels. Meanwhile, different method of smoking fish gave no significant different (P>0.05) on carbonyl compounds (phenol, formaldehyde, and organic acid) levels on smoked fish processed by traditional method and smoking kiln, but different fish species gave very significant different (P<0.01) to carbonyl compound level (phenol, formaldehyde, and organic acid). Keywords: Benzo(α)pyrene, carbonyl, smoking kiln, smoked fish, traditional method
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Sirait, Jantri. "Modifikasi Alat Pengasapan Ikan untuk Mengefisiensikan Waktu Pengasapan." Jurnal Riset Teknologi Industri 12, no. 2 (December 6, 2018): 77–85. http://dx.doi.org/10.26578/jrti.v12i2.3928.
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Modifikasi alat pengasapan ikan untuk mengefisiensikan waktu pengasapan fokus terhadap tungku pemanas dan alat pemutar rotary. Tungku pemanas dari bahan plat besi 5 mm dengan ukuran P,L,T (50,50,50) cm dilengkapi dengan penutup tungku pada bagian atas. Untuk menyalurkan uap panas dan asap dari tungku ke ruang pengasapan digunakan pipa penyalur dengan ukuran 2” (inchi) dengan panjang 100 cm, dan untuk mendorong uap panas dan asap masuk kedalam ruang pengasapan mengunakan exhaust fan. Motor listrik dengan daya 125 watt, putaran 1250 rpm digunakan untuk memutar rotary, dan untuk mereduksi putaran motor listrik dipergunakan gearbox dengan rasio putaran 1 : 40 rpm. Untuk menghindari selip pada saat pengasapan ikan digunakan bevel gear sebagai penghubung putaran dari gearbox terhadap rotary. Efisiensi waktu pengasapan ikan lebih cepat dengan mengunakan alat pengasapan ikan yang dimodifikasi. Dimana pada percobaan pertama waktu yang dibutuhkan untuk mengasapkan ikan patin seberat 33 kg atau berjumlah 60 ekor dibutuhkan waktu 10 jam, sedangkan percobaan kedua untuk mengasapkan ikan lele seberat 36 kg atau berjumlah 58 ekor dibutuhkan waktu 4 jam. Kemudian percobaan ketiga pengasapan ikan lele yang diolesi bumbu perasa yaitu kunyit dan garam seberat 25 kg berjumlah 38 ekor dibutuhkan waktu pengasapan selama 6 jam. Dan pada percobaan ke empat, ikan yang diasapkan adalah ikan patin sebeart 21 kg berjumlah 34 ekor, yang diberi bumbu perasa kunyit dan garam. Waktu yang dibutuhkan untuk mengasapkan selama 8 jam. Dari hasil uji kadar air ikan asap di laboratorium, ikan yang diasapkan selama 10 jam, 6 jam dan 8 jam kadar airnya sesuai dengan SNI 2725 : 2013, Maks kadar air 60%. Sedangkan pengasapan ikan dengan waktu 4 jam, kadar air ikan asap belum susai dengan SNI ikan asap dengan pengasapan panas. Modification tool for fish smoking to efficiency smoking time focus on furnace heating and Rotator of rotary. The heater furnace of the iron plates with a size of 5 mm P, L, T (50, 50, 50) cm are fitted with a cover on top of the stove. To channel hot steam and smoke from the furnace to the space station used a pipe distributor with size 2 "(inch) with a length of 100 cm, and to push the hot steam and smoke into the space station using exhaust fans. Electric motor with power 125 watt, round 1250 rpm is used to rotate the rotary, and to reduce the rounds used electric motor gearbox with ratio 1:40 rpm spin. To avoid any slippage at the moment of bevel gear used fish station as a liaison from the gearbox against round rotary. The efficiency of the time smoking fish more quickly by using the modified fish smoking tool. Where the first experiments on the time it takes to smoking fish catfish weighing 33 kg or totaled 60 tail it takes 10 hours, while the second trial for the smoking catfish weighing 36 kg or numbered 58 tail it takes 4 hours. Then the third experiment fogging catfish taste the seasoning smeared with turmeric and salt weighing 25 kg and totaled 38 tail takes fogging for 6 hours. And in the fourth experiment, fish smoked fish is catfish weighing 21 kg, totaling 34 tail, the spices turmeric and salt taste. The time it takes to smoking for 8 hours. The test results of the water content in the laboratory of smoked fish, smoked fish for 10 hours, 6 hours and 8 hours of water levels in accordance with the SNI 2725:2013, max 60% moisture content. While fogging fish with a time of 4 hours, water levels have not smoked fish with SNI smoked fish with fogging.
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Amin, Muhammad, Mohammad Shoaib, Ghulam Nabi, Naveed Ahmed, and Muhammad Kifayatullah. "A Comprehensive Review on Fishery Biology of Catfishes." Journal of Biology and Life Science 7, no. 1 (October 13, 2015): 1. http://dx.doi.org/10.5296/jbls.v7i1.8421.
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Cat fish exploit a large diversity of both plant and animal protein, and adapt harsh environmental conditions as they have the ability to take atmospheric oxygen. Marine catfish tolerate a broad range of salinities between Open Ocean and fresh water. The entire catfishes have soft as well as scaleless body, are greatly appreciated by consumers and maintain healthy in both fresh and dried condition. In this review article various aspects of cat fish has been discussed.
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Orfinger, Alexander B., Quan T. Lai, and Ryan M. Chabot. "Effects of Nonnative Fishes on Commercial Seine Fisheries: Evidence from a Long-Term Data Set." Water 11, no. 6 (June 4, 2019): 1165. http://dx.doi.org/10.3390/w11061165.
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Dozens of introduced exotic freshwater fish species inhabit the state of Florida. These nonnative fishes interact with freshwater commercial fisheries in a variety of ways, influencing catch abundance, composition, and revenue. Using a 22-year data set collected from a commercial haul seine fishery, we aimed to explore the dynamics of yield and revenue in relation to nonnative fishes, with emphasis on the suckermouth armored catfishes (Pterygoplichthys spp.). Using profit index metrics and the inverse Simpson’s diversity index, we found that non-native tilapia (Oreochromis spp.) and brown hoplo (Hoplosternum littorale) provided economic benefits while suckermouth armored catfishes seemed to disrupt catch consistency and lower profit index values. To reduce the negative impacts of the suckermouth armored catfishes and subsequently exert pressure on their population, we suggest marketing these edible fishes for human and/or animal consumption.
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Hasan, Bustari, Desmelati Desmelati, Dian Iriani, Sumarto Sumarto, and Sahyudi Sahyudi. "Evaluation of Physicochemical Characteristics of Hot-Smoked River Catfish Prepared from Fresh and Frozen Raws." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 2 (August 31, 2016): 121. http://dx.doi.org/10.17844/jphpi.v19i2.13111.
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The aim of this study was to evaluate physicochemical characteristics of hotsmoked catfish from fresh<br />and frozen fish. River catfish samples (Hemibagrus nemurus Valenciennes, 1840), 240-270 gram in weight<br />were taken from catfish cage culture in Sungai Paku, Riau. A total fish samples (120 fishes) were grouped<br />into 4 batches, each batch consisted of 30 fish (15 fillets and 15 butterfly like cuts). One batch was smoked<br />fresh and the other 3 batches were smoked after being frozen at -18oC for 10, 20 and 30 days respectively.<br />Before smoked, the fish samples were analyzed for proximate composition and water holding capacity; and<br />after smoked, the fish samples were determined for smoking yield, proximate composition and sensory<br />quality. Moisture, fat and protein composition of fish was not different between fresh raw and frozen for<br />10, 20 and 30 days (P>0.05), however, water holding capacity was higher for fresh than frozen fish; and<br />the value decreased as the longer the frozen storage (P<0.05). Smoking yield correlated stronger to water<br />holding capacity (r=0.59) than to moisture (r=0.01), fat (r=0.16) and protein (r=0.02) composition of the<br />raw. Moisture, fat and protein of smoked fish was lower for smoked fish prepared from frozen fish than that<br />for fresh fish (P<0,05); and the values decreased as the longer the frozen storage. Moisture, fat and protein<br />loss during smoking was higher for smoked fish prepared from frozen fish than that for fresh fish, except<br />for that frozen for 10 days. Overall, sensory values of smoked fish from frozen fish were lower than that for<br />fresh fish (P<0,05); however, flavor and odor values were not different between smoked fish from fish frozen<br />for 10 days and fresh fish (P>0,05).
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Hasan, Bustari, Desmelati Desmelati, Dian Iriani, Sumarto Sumarto, and Sahyudi Sahyudi. "Evaluation of Physicochemical Characteristics of Smoked River Catfish Prepared from Fresh and Frozen Raws." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 2 (August 30, 2016): 121. http://dx.doi.org/10.17844/jphpi.v19i2.13455.
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The aim of this study was to evaluate physicochemical characteristics of hotsmoked catfish from fresh<br />and frozen fish. River catfish samples (Hemibagrus nemurus Valenciennes, 1840), 240-270 gram in weight<br />were taken from catfish cage culture in Sungai Paku, Riau. A total fish samples (120 fishes) were grouped<br />into 4 batches, each batch consisted of 30 fish (15 fillets and 15 butterfly like cuts). One batch was smoked<br />fresh and the other 3 batches were smoked after being frozen at -18oC for 10, 20 and 30 days respectively.<br />Before smoked, the fish samples were analyzed for proximate composition and water holding capacity; and<br />after smoked, the fish samples were determined for smoking yield, proximate composition and sensory<br />quality. Moisture, fat and protein composition of fish was not different between fresh raw and frozen for<br />10, 20 and 30 days (P>0.05), however, water holding capacity was higher for fresh than frozen fish; and<br />the value decreased as the longer the frozen storage (P<0.05). Smoking yield correlated stronger to water<br />holding capacity (r=0.59) than to moisture (r=0.01), fat (r=0.16) and protein (r=0.02) composition of the<br />raw. Moisture, fat and protein of smoked fish was lower for smoked fish prepared from frozen fish than that<br />for fresh fish (P<0,05); and the values decreased as the longer the frozen storage. Moisture, fat and protein<br />loss during smoking was higher for smoked fish prepared from frozen fish than that for fresh fish, except<br />for that frozen for 10 days. Overall, sensory values of smoked fish from frozen fish were lower than that for<br />fresh fish (P<0,05); however, flavor and odor values were not different between smoked fish from fish frozen<br />for 10 days and fresh fish (P>0,05).
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Adesina, Jacobs Mobolade, Adeolu Rufus Jose, and Yallappa Rajashekar. "Bio-efficacy of Clerodendrum capitatum (Willd) Schumachet. Thonn. (Lamiales: Verbenaceae) against Dermestes maculatus De Geer, 1774 (Coleoptera: Dermestidae) larvae infestation on smoked catfish Claria gariepinus (Burchell, 1822) (Siluriformes: Clariidae)." Brazilian Journal of Biological Sciences 3, no. 5 (2016): 37. http://dx.doi.org/10.21472/bjbs.030504.
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Studies were conducted under ambient condition to assess the efficacy of Clerodendrum capitatum (Willd) Schumachet. Thonn. (Lamiales: Verbenaceae) against larvae infestation and adult emergence of Dermestes maculatus De Geer, 1774 (Coleoptera: Dermestidae) on smoked dried catfish Claria gariepinus (Burchell, 1822) (Siluriformes: Clariidae). The leaf powder was admixed at 2.5 g, 3.0 g, 4.0 g and 5.0 g/15 g to disinfected smoke-dried catfish Clarias gariepinus separately in a 125 mL plastic container. Ten newly emerged (0-72 h) larvae of D. maculatus were introduced into each of the plastic containers. Efficacy of Clerodendrum capitatum was assessed based on percentage larval mortality, adult emergence reduction and weight loss. Results showed that the plant powder cause significantly (p < 0.05) larval mortality compared to the untreated fish at 24 h, 48 h and 72 h post infestation. Percentage reduction of adult emergence was not significant (p > 0.05) in treated fish samples compared to untreated sample. While fish sample protected with powder of Clerodendrum capitatum, exhibit significant (p < 0.05) low weight loss as against weight loss observed in untreated fish. The efficacy of Clerodendrum capitatum is inversely proportional to increase in dosage rate. This study clearly demonstrated the larvicidal potential of Clerodendrum capitatum powder in offering effective protection against infestation and damage by D. maculatus and recommended for utilization in integrated post-harvest management strategies of smoke-dried fish.
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Akinsola, A. O., O. A. Idowu, G. O. Akanbi, and M. A. Taiwo-Oshin. "Effect of smoking, drying and the combination of smoking-drying on the nutritional and sensory attributes of catfish (Clarias gariepinus)." Journal of Food, Nutrition and Agriculture 1, no. 1 (June 10, 2018): 25. http://dx.doi.org/10.21839/jfna.v1i1.133.
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Poor post harvesting technology such as handling, preservation and processing can lead to an unhealthy situation through massive spoilage and waste. This study assessed the effect of smoking, drying and the combination of smoking-drying on the nutritional and sensory attributes of catfish. Six kilograms of average fresh catfish were washed, eviscerated, drained, and divided into four portions of 1.5 kg each. Sample A served as control (fresh fish), while samples B, C, D were dried, smoked, dried and smoked fish respectively. Samples were analyzed using standard methods. The results of proximate analyses of samples showed that the moisture content ranged from 20.1 to 75.0 %, the protein content from 21.7 to 63.0 %, the fat content from 0.5 to 8.6 %, while the crude fibre ranged from 0.0 to 0.04 %. The total ash ranged from 1.1 to 4.9 %, while Carbohydrate (NFE) ranged from 0.1 to 3.5 %. Significant difference (p>0.05) was observed in the free fatty acids and pH of sample C compared to other samples. The total plate count ranged from 2.4 to 4.3x10-5 CFU/g. The sensory attributes result showed that sample D was the most preferred and acceptable. The study showed that dried-smoked fish had a better quality and was more preferred for consumption than singly dried or smoked catfish
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Alam, Mohammad Shamimul, Hawa Jahan, Rowshan Ara Begum, and Reza M. Shahjahan. "Differentiation Of Clarias Batrachus, C. Gariepinus And Heteropneustes Fossilis By Pcr-Sequencing Of Mitochondrial 16s Rrna Gene." Journal of the Asiatic Society of Bangladesh, Science 41, no. 1 (June 16, 2015): 51–58. http://dx.doi.org/10.3329/jasbs.v41i1.46190.
Full textAbstract:
Heteropneustesfossilis, Clariasbatrachus and C. gariepinus are three major catfishes ofecological and economic importance. Identification of these fish species becomes aproblem when the usual external morphological features of the fish are lost or removed,such as in canned fish. Also, newly hatched fish larva is often difficult to identify. PCRsequencingprovides accurate alternative means of identification of individuals at specieslevel. So, 16S rRNA genes of three locally collected catfishes were sequenced after PCRamplification and compared with the same gene sequences available from othergeographical regions. Multiple sequence alignment of the 16S rRNA gene fragments ofthe catfish species has revealed polymorphic sites which can be used to differentiate thesethree species from one another and will provide valuable insight in choosing appropriaterestriction enzymes for PCR-RFLP based identification in future.
Asiat. Soc. Bangladesh, Sci. 41(1): 51-58, June 2015
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Ayeloja, A. A., F. O. A. George, A. A. Akinyemi, and O. O. Atanda. "Polycyclic aromatic hydrocarbon and microbial load of naturally preserved smoked African mud catfish Clarias gariepinus (Burchell, 1822)." Ghana Journal of Agricultural Science 54, no. 2 (December 20, 2019): 15–25. http://dx.doi.org/10.4314/gjas.v54i2.2.
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Polycyclic Aromatic Hydrocarbon (PAH) and microbial load of naturally preserved smoked African mud catfish (Clarias gariepinus Burchell, 1822) were examined. The experimental design was Complete Randomized Design (CRD) with the treatments been the variously preserved C. gariepinus catfish (garlic, ginger, garlic-ginger homogenate preserved and the control without spices). PAH and the microbial load were determined using standard experimental procedures. All PAH values were within internationally recommend value for human consumption, the aerobic mesophilic counts of unpreserved smoked catfish was significantly higher (p < 0.05) than other preserved smoked C. gariepinus (2.51 ± 0.01- 8.98 ± 0.02 log cfu/g); while garlic-ginger preserved smoked catfish product had the lowest aerobic mesophilic counts (2.48 ± 0.01-8.92 ± 0.01 log cfu/g) during the period of the experiment. Similar trends were observed in the mould fungal, Staphylococcal, coliform, Salmonella and Shigella counts. However, Staphylococcal counts, coliform count and Salmonella and Shigella counts were not detected in the samples at the onset of the experiment. The preserved smoked fish are good and safe for human consumptions when stored at ambient temperatures (25-36oC) for 56 days. The combination of garlic and ginger provide a much stronger antibiotic effect than the individual ingredients.
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Andika, I. Ketut Agus Sandi, Pande Ketut Diah Kencana, and Ida Bagus Putu Gunadnya. "Pengaruh Konsentrasi Asap Cair Batang Bambu Tabah (Gigantochloa nigrociliata Buse-Kurz) terhadap Karakteristik Ikan Lele (Clarias Sp) Asap." Jurnal BETA (Biosistem dan Teknik Pertanian) 8, no. 2 (January 13, 2020): 346. http://dx.doi.org/10.24843/jbeta.2020.v08.i02.p19.
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Ikan lele adalah makanan kesehatan yang mengandung nilai gizi yang baik. Oleh karena itu penting untuk menemukan metode untuk melestarikan ikan ini untuk meningkatkan konsumsi mereka. Asap cair batang bambu tabah dapat digunakan sebagai metode untuk membuat produk olahan lele. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh konsentrasi dan suhu pemasakan terhadap kualitas ikan lele yang direndam dalam larutan asap cair bambu yang tabah. Dan juga untuk mengetahui konsentrasi dan suhu terbaik untuk kualitas organoleptik terbaik dari lele asap yang direndam dalam larutan asap cair bambu tabah. Metode yang digunakan adalah rancangan acak lengkap faktorial dengan dua faktor. Faktor pertama adalah konsentrasi asap cair, yang terdiri dari 1%, 2%, dan 3%. Faktor kedua adalah suhu memasak, yang terdiri dari suhu 600C, 800C, dan 1000C. Kombinasi perawatan terbaik adalah konser bambu tabah 3% dan suhu pemanasan 1000C, pemanasan selama 4 jam menghasilkan nilai pH 5,61, kadar air 56,78%, kadar abu 2,17%, kadar protein 13,46% , kadar lemak 5,55%, warna 4,67 (coklat keemasan), aroma 4,80 (aroma cukup) rasa 4,93 (testeful), tekstur 4,53 (padat).
Catfish is a health food that contains good nutritional value. It is therefore important to find methods to conserve these fish to increase their consumption. Liquid smoke of stoic bamboo stems can be used as a method for making processed catfish products. The purpose of this study was to determine the effect of cooking concentration and temperature on the quality of smoked catfish soaked in a stoic bamboo liquid smoke solution. And also to find out the best concentration and temperature for the best organoleptic quality of smoked catfish soaked in a stoic bamboo liquid smoke solution. The method used is a complete factorial randomized design with two factors. The first factor is the concentration of liquid smoke, consisting of 1%, 2%, and 3%. The second factor is the cooking temperature, consisting of 600C, 800C, and 1000C temperature. The best combination of treatments is a 3% stoic bamboo concert and a heating temperature of 1000C, heating for 4 hours produces a pH value of 5.61, a moisture content of 56.78%, an ash content of 2.17%, a protein content of 13.46%, a fat content of 5.55%, a color 4,67 (golden brown) ,aroma 4.80 (smells enough) taste 4.93 (testeful), texture 4.53 (solid).
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Tayib, Raja, N. Ira Sari, and Tjipto Leksono. "Consumer Acceptance on The Grilled Catfish (Pangasius hypophthalmus) in Different Smoking Materials and Methods." JURNAL AGROINDUSTRI HALAL 7, no. 1 (April 28, 2021): 017–24. http://dx.doi.org/10.30997/jah.v7i1.3322.
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This study aimed to observe the effect of different smoking materials and methods on the consumer acceptance on the grilled catfish. The grilling treatments were consisting of grilling the fish by using coconut shell (A1), grilling the fish by using coconut shell charcoal (A2) and roasting the smoke flavored fish by using an oven (A3). The parameters observed were sensory evaluation, total bacteria plate count, the value of water activity, the content of total phenol and total acid. The result showed that the grilling the catfish by using coconut shell was indicated the most preferred by consumers. The product was showing the highest quality, characterized by the intact and shiny appearance, distinctive aroma of roasted fish, strong grilled fish taste, compact and dry solid texture. The number of total bacteria was 1.4 x 104 CFU/g, the value of water activity was 0.84%, pH was 6.3, the content of total phenol was 32.67 ppm and the total acid was 1.75%.Keywords: catfish, coconut shell, grilling, liquid smoke
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Jimoh, Wasiu Adeyemi. "Consumers’ Preference and Behaviour Pattern Towards Fresh and Smoked Catfish in Ilorin Metropolis, Nigeria." Journal of Agricultural and Marine Sciences [JAMS] 25 (April 10, 2020): 27. http://dx.doi.org/10.24200/jams.vol25iss0pp27-38.
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Consumers’ preference study allows industries to tailor the supply towards the preference of consumers so that market could be optimized for their turn-over and profits. This study investigated consumers’ preference of fresh and smoked catfish in Ilorin Metropolis. A total of 225 questionnaires were administered adopting multi-stage techniques to elicit information from the respondents. The obtained data were subjected to descriptive and inferential statistics. The results showed that majority of the respondents in this study preferred smoked catfish irrespective of their socio-economic profile. The majority of the respondents agreed with the factors used in this study for the preference of fish (i.e. types) and their frequency of eating as their preferred fish. This study showed that only tribe of the respondents showed significant effect (p<0.05) on the respondents’ preferences for whole or chunk fish; and family size, age and religion had significant effect on the frequency of their preferred fish.
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Sari, Rodiah Nurbaya, Diah L. Iah L. Ayudiarti, and G. Gunawan. "THE USE OF VACUUM IMPREGNATION TECHNOLOGY TO IMPROVE SMOKING PROCESS." KnE Life Sciences 2, no. 1 (February 1, 2015): 45. http://dx.doi.org/10.18502/kls.v1i0.85.
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One of the new technologies contributing to preserve of the original properties of food (as fruit or vegetables or fish) is vacuum impregnation. Vacuum impregnation is one method to preserve foods using vacuum and pressure to fill the porous with osmotic solution. The application of vacuum impregnation had been conducted on smoked processing using liquid smoke for catfish fillet (Pangasius sp) and tilapia fillet (Oreochomis sp). Vacuum impregnation tool was used having 5 kg capacity of fillet product, vacuum pressure at 0.71 kg/cm2 and range of 0-6 kg/cm2 impregnation pressure. The research had done using osmotic solution with liquid smoke 1.5% and 17.4 g of salt/liter of water and the tool was set at condition of 0.71 kg/cm2 vacuum pressure and variations treatment such of vacuum process time (5 and 10 min), impregnation pressure (1 and 2 kg/cm2), and impregnation process time (5, 15, and 25 min). Each treatment was done in two replications. Analysis of these fillets before smoking process such of water content, protein content, fat content, color measurement, and hardness (cutting force). After smoking process these fillets are also analyzed for phenols content. Results showed that based on several parameters of the treatment, smoked fillet of catfish needed 35 minutes with phenol content 0.34 mg/kg and tilapia 25 minutes with 16.40 mg/kg phenol content. Thus by using vacuum impregnation tool could be shortening the smoking process for both of fillet. Keywords: fillet, liquid smoke, original properties, vacuum impregnation
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Ibanga, Itoro J., Eno A. Moses, E. J. Edet, and Anietie E. Moses. "Microbial and some heavy metals analysis of smoked fishes sold in urban and rural markets in Akwa Ibom State, Nigeria." Calabar Journal of Health Sciences 3 (February 6, 2020): 73–79. http://dx.doi.org/10.25259/cjhs_15_2019.
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Objective: The unhygienic nature of our local markets, including fish handlers, may contribute to the presence of microorganisms in smoked fish leading to food poisoning. Furthermore, heavy metals can find their way into the food chain through fish raising public health concerns. This study assessed the microbial load and some heavy metals in smoked fishes (bongafish and catfish) sold in urban and rural markets in Akwa Ibom State, Nigeria. Materials and Methods: Standard microbiological techniques and analytical procedures were used for microbial and heavy metals analyses, respectively. Results: The results revealed that all the smoked fish obtained from the two markets were contaminated with heavy metals and microorganisms. Zinc was the most frequently detected heavy metal in both fish types (catfish: 15.50 ± 9.99 mg/kg; and bongafish: 16.40 ± 12.28 mg/kg) obtained from urban market, while in the rural market, it was cadmium (catfish: 15.95 ± 10.15 mg/kg; and bongafish: 18.25 ± 7.15 mg/kg). The overall elemental concentrations of the heavy metals in the fishes were in decreasing order of Cadmium>Zinc>Nickel>Cobalt>Lead. The most predominant bacterial species in fishes from the urban market was Bacillus subtilis (7.5 × 104 ± 0.871 colony- forming unit/g) while Candida tropicalis (9.2 × 104 ± 0.105) was the most predominant fungal species. More bacteria and fungi were encountered in fishes from the rural market than from the urban market. The differences in the microbial loads from the two markets were not statistically significant (P > 0.05). Conclusion: There is a potential health risk of eating smoked fishes that are poorly stored or handled in the market as a result of heavy metal contamination and the presence of the pathogenic organism. Therefore, maintenance and enforcement of adequate sanitation practices in these markets should be encouraged to avert unpleasant health consequences.
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CHAVEZ, JOEL M., REYNALDO M. DE LA PAZ, SURYA KRISHNA MANOHAR, ROBERTO C. PAGULAYAN, and JOSE R. CARANDANG VI. "New Philippine record of south american sailfin catfishes (Pisces: Loricariidae)." Zootaxa 1109, no. 1 (January 17, 2006): 57. http://dx.doi.org/10.11646/zootaxa.1109.1.6.
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A taxonomic and biogeographic study of the introduced suckermouth armored catfishes locally known as “janitor fish” is briefly described. Specimens were collected from five sites in the Laguna de Bay basin and were examined for 19 meristic and 37 morphometric characters and other external features including coloration. Results were compared with existing literature on fishes in the family Loricariidae. Examination revealed that specimens of janitor fish, previously reported as Hypostomus plecostomus, actually belong to the genus Pterygoplichthys, family Loricariidae. Collected specimens consisted of two species—Pterygoplichthys disjunctivus and Pterygoplichthys pardalis. Both species were collected from the five sites except in Pasig River where only P. disjunctivus was collected.
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Hoeinghaus, David J., Kirk O. Winemiller, and Donald C. Taphorn. "Compositional change in fish assemblages along the Andean piedmont - Llanos floodplain gradient of the río Portuguesa, Venezuela." Neotropical Ichthyology 2, no. 2 (June 2004): 85–92. http://dx.doi.org/10.1590/s1679-62252004000200005.
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The Llanos is an extensive area of savannas and floodplains in central and western Venezuela that encompasses a gradual elevation gradient from the río Orinoco to the foothills of the Andean piedmont. The río Portuguesa is one of the major rivers in this region that until recently had escaped major anthropogenic impacts and still maintains substantial seasonal fish migrations. However, little work has been conducted on fish ecology in this river. The present study analyzes museum collections sampled at 28 locations along the longitudinal gradient of the río Portuguesa to assess similarity of species composition from the foothills of the Andean piedmont to the lowland llanos floodplain. The standardized samples used in this analysis contained greater than 133 species representing 6 orders and 27 families, dominated by characiforms (61 species) and siluriforms (52 species). Detrended correspondence analysis (DCA) ordination of samples revealed a continual pattern of compositional change, and species are added at a faster rate than they are lost as one moves from the foothills of the piedmont to the low llanos. Based on DCA, samples from three elevational segments were found to significantly differ in fish species composition. Assemblages in the upper reaches contained unique species of loricariid catfishes, small pimelodid and trichomycterid catfishes, and small characiforms not observed at lower elevations. The lowland reach contained species of cichlids, large catfishes and characids not collected from the other two regions. Samples from the middle region revealed transitional species composition. Longitudinal species turnover probably reflects differences in environmental characteristics such as a water velocity, substrate composition and disturbance regime. Findings from this broad-scale analysis contribute to a baseline for future studies of fish ecology in this region.
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BAUMEISTER, LESLIE, MONA E. HOCHMAN, JOHN R. SCHWARZ, and ROBIN BRINKMEYER. "Occurrence of Vibrio vulnificus and Toxigenic Vibrio parahaemolyticus on Sea Catfishes from Galveston Bay, Texas." Journal of Food Protection 77, no. 10 (October 1, 2014): 1784–86. http://dx.doi.org/10.4315/0362-028x.jfp-14-175.
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Dorsal and pectoral fin spines from two species of sea catfishes (Bagre marinus and Ariopsis felis) landed at 54 sites in Galveston Bay, Texas, and its subbays from June to October 2005 were screened with traditional cultivation-based assays and quantitative PCR assays for Vibrio vulnificus and Vibrio parahaemolyticus. V. vulnificus was present on 51.2% of fish (n = 247), with an average of 403 ±337 SD cells g−1. V. parahaemolyticus was present on 94.2% (n = 247); 12.8% tested positive for the virulence-conferring tdh gene, having an average 2,039 ± 2,171 SD cells g−1. The increasing trend in seafood consumption of “trash fishes” from lower trophic levels, such as sea catfishes, warrants evaluation of their life histories for association with pathogens of concern for human consumption.
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Isinkaye, M. O., F. S. Ajilu, S. B. Ibikunle, and O. S. Ajayi. "COMMITTED EFFECTIVE DOSE FROM NATURAL RADIONUCLIDES IN FARM-RAISED AND WILD CATFISH IN IBADAN, NIGERIA." Radiation Protection Dosimetry 193, no. 1 (January 2021): 1–7. http://dx.doi.org/10.1093/rpd/ncab011.
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Abstract There is extensive contamination of the aquatic environment when rivers and streams flow through areas of high human activities such as industrial cities and major towns. These contaminations may include enhanced background levels of naturally occurring radioactive materials resulting from rapid urbanization and other human activities. The natural radionuclides (40K, 238U (226Ra) and 232Th (228Ra)) contents of farm-raised and wild catfish in five fish farms and three major rivers within Ibadan metropolis have been studied using gamma spectrometry. The results indicate that the average committed effective doses from the ingestion of the two sets of catfishes are 104 ± 37 and 104 ± 32 μSv/y for farm-raised and wild catfish, respectively. It can be concluded that the consumption of the catfishes poses no immediate radiological hazards to the population of the study area.
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Denadai, Márcia Regina, Eduardo Bessa, Flávia Borges Santos, Wellington Silva Fernandez, Fernanda Motta da Costa Santos, Mônica Malagutti Feijó, Andreza Cristina Dias Arcuri, and Alexander Turra. "Life history of three catfish species (Siluriformes: Ariidae) from southeastern Brazil." Biota Neotropica 12, no. 4 (December 2012): 74–83. http://dx.doi.org/10.1590/s1676-06032012000400008.
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This study evaluated the spatio-temporal distribution, reproduction and diet of the catfishes Genidens genidens, G. barbus and Aspistor luniscutis in Caraguatatuba Bay. Their sizes were recorded and the sex and reproductive stage identified. The abundance was compared between areas (South and North) and among months (August 2003 - October 2004). The species had different spatial distributions, allowing them to coexist. The temporal distribution reflected their tendencies to migrate in the reproductive period, as evidenced by the dominance of small immature individuals in the bay. G. genidens tended to reproduce in winter, and A. luniscutis in spring. The diet of G. genidens consisted of crustaceans, mollusks (shells), fish scales, ostracods, and bivalve siphons. G. barbus consumed a high proportion of mysids, followed by fish (bones and scales). For A. luniscutis, the diet was based on fish scales and crustaceans. High quantities of particulate organic matter were observed in the diet of all three species, as previously known for estuarine catfishes. The consumption of fish scales may reflect a lepidophagic habit. A small overlap was observed among the diets, reflecting differences in their environments as well as in the proportions of each item ingested.
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ARAI, NOBUAKI, NORIYUKI TAKAI, WATARU SAKAMOTO, KOJI YOSHIDA, and KUNIKO MAEDA. "FISH OTOLITHS ANALYSIS BY PIXE: APPLICATION TO STOCK DISCRIMINATION." International Journal of PIXE 05, no. 02n03 (January 1995): 153–57. http://dx.doi.org/10.1142/s0129083595000186.
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Fish otoliths are continuously dsposited from fish birth to its death along with encoding environmental information. In order to decode the information, PIXE was adopted as trace elemental analysis of the otoliths. Strontium to calcium concentration ratios of red sea bream otoliths varied among rearing stations. The Sr/Ca ratios of Lake Biwa catfishes also varied between male and female and among fishing grounds. The PIXE analysis was applied to the fish stock discrimination.
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Naughton, George P., Zeb S. Hogan, Teresa Campbell, Peter J. Graf, Charles Farwell, and Naruepon Sukumasavin. "Acoustic Telemetry Monitors Movements of Wild Adult Catfishes in the Mekong River, Thailand and Laos." Water 13, no. 5 (February 27, 2021): 641. http://dx.doi.org/10.3390/w13050641.
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Research on fish movement and habitat use in large tropical rivers is urgently needed to protect fisheries that are a primary source of protein for millions of people. In this pilot study, acoustic telemetry was used to monitor movements of wild catfishes in a 94.6 rkm reach of Mekong River, where it functions as the border between Thailand and Lao People’s Democratic Republic (PDR). Twenty fish were tagged and released in May 2006 and monitored through May 2007 with 17 fixed-site acoustic receivers. Ten receivers had detection probabilities ranging from 0.67 to 1.00, and five receivers had detection probabilities of 0.50 or less. Detection probability was not correlated with river width. Eighteen (90%) of the tagged fish were detected by at least one receiver. Monitoring durations of individual fish ranged from 0.1 to 354.4 days. The longest total movement was 88.3 rkm, while the longest upstream movement was 52.1 rkm. Movement rates ranged from 0.1 to 156.7 rkm/d. This work provided preliminary data on movement patterns of wild Mekong catfishes. The methods and lessons learned from this study can be used for future positional telemetry research to address management-relevant uncertainties about migration corridors, habitat use, efficacy of fish reserves, and river development planning.
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Jusmaldi, Jusmaldi, Dedy Duryadi Solihin, Ridwan Affandi, M. F. Rahardjo, and Rudhy Gustiano. "Kematangan gonad dan tipe pemijahan ikan lais, Ompok miostoma (Vaillant, 1902) di Daerah Aliran Sungai Mahakam Kalimantan Timur." Jurnal Iktiologi Indonesia 17, no. 2 (June 24, 2018): 201. http://dx.doi.org/10.32491/jii.v17i2.359.
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Silurid catfishes O. miostoma (Vaillant, 1902) is an endemic species in Mahakam Watershed East Kalimantan. Biology reproduction aspect of this species is not yet known. The purpose of this study was to determine the stages of gonad maturation characteristics, egg size, and spawning type. Fish sampling conducted monthly from November 2013 to Oc-tober 2014, using many gears at four locations in Mahakam Watershed, i.e: Semayang Lake, Belayan River, Siran River and Tering River. To determine the stages of gonad maturation in silurid catfishes were carried out by morphologic and histologic examination methods. Spawning fish type was determined based on the distribution of eggs diameter. The results of this research showed that there are five gonad maturation stages of males and females of silurid catfishes. Dis-tribution of eggs diameter in gonad maturity stages ranges from 0.54 – 1.30 mm with simultaneous spawning type.AbstrakIkan lais O. miostoma (Vaillant 1902) adalah spesies ikan endemik di Daerah Aliran Sungai (DAS) Mahakam Kaliman-tan Timur. Aspek biologi reproduksi ikan ini belum pernah diketahui. Penelitian ini bertujuan untuk menentukan karak-teristik tahap kematangan gonad, ukuran telur, dan tipe pemijahan. Pengambilan contoh ikan dilakukan setiap bulan, dari bulan November 2013 sampai Oktober 2014 menggunakan berbagai jenis alat tangkap pada empat lokasi penelitian di DAS Mahakam yang meliputi: Danau Semayang, Sungai Belayan, Sungai Siran, dan Sungai Tering. Penentuan ting-kat kematangan gonad ikan lais dilakukan dengan metode pemeriksaan morfologis dan histologis. Tipe pemijahan ikan lais ditentukan berdasarkan sebaran diameter telur. Hasil penelitian menunjukkan ada lima tahap kematangan gonad jantan dan betina ikan lais. Sebaran diameter telur pada tahap matang gonad berkisar dari 0,54 - 1,30 mm dengan tipe pemijahan serempak.
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Nwabueze, A. A. "Saprolegniasis in Freshwater Catfishes Sold in Fish Markets in Asaba, Southern Nigeria." Agricultural Science 1, no. 2 (June 28, 2013): 10–17. http://dx.doi.org/10.12735/as.v1i2p10.
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Moraes Neto, Américo, Maelin da Silva, Daniele Aparecida Matoso, Marcelo Ricardo Vicari, Mara Cristina de Almeida, Maria João Collares-Pereira, and Roberto Ferreira Artoni. "Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes)." Neotropical Ichthyology 9, no. 1 (February 4, 2011): 97–105. http://dx.doi.org/10.1590/s1679-62252011005000002.
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Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae. The analyzed species showed little amount of heterochromatin located preferentially in the centromeric and telomeric regions of some chromosomes. The nucleolus organizer regions activity (Ag-NORs) and the chromosomal location of ribosomal genes by fluorescent in situ hybridization (FISH), with 18S and 5S probes, showing only one chromosome pair marked bearer of ribosomal genes, the only exception was Pimelodus britskii that presented multiple NORs and syntenic location of the 18S and 5S probes. Non-Robertsonian events, as pericentric inversion and NORs duplication are requested to explain the karyotype diversification in Pseudoplatystoma from the rio Paraguay (MS), Pimelodus from the rio Iguaçu (PR), Sorubim from the rio Paraguay (MS) and Steindachneridion from the rio Paraíba do Sul (SP). The obtained data for the karyotype macrostructure of these species corroborates a conserved pattern observed in Pimelodidae. On the other hand, interspecific variations detected by molecular cytogenetics markers made possible cytotaxonomic inferences and differentiation of the species here analyzed.
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CELIS-GRANADA, MONICA SILREY, SEBASTIÁN MEDINA, and CAMILO BELTRÁN. "New record of the species Pseudorinelepis genibarbis (Loricariidae: Rhinelepinae) for the Caquetá river basin, Colombia." Zootaxa 4658, no. 1 (August 21, 2019): 193–96. http://dx.doi.org/10.11646/zootaxa.4658.1.12.
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The Neotropical fish family Loricariidae is the most diverse family of catfishes (order Siluriformes) and the fifth largest fish family, with approximately 993 valid species. The species of the family are geographically distributed from Costa Rica in Central America to Argentina in South America and are grouped into 83 genera and the following six subfamilies: Hypoptopomatinae, Hypostominae, Loricariinae Delturinae, Lithogeninae and Rhinelepinae (Roberto et al., 2006, Birindelli et al., 2007, Corea et al., 2014, Eschmeyer & Fong, 2019).
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Ajayi, Olufunmilayo Eunice, Oluwole Olakunle Oladele, and Goodness Osehotue Fabunmi. "Differential inhibitory potentials of three plant extracts against Dermestes maculatus Degeer and microorganisms in smoked catfish, Clarias gariepinus Burchell." Food Quality and Safety 3, no. 3 (August 2019): 201–8. http://dx.doi.org/10.1093/fqsafe/fyz017.
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Abstract Objectives Three medicinal plants: Zingiber officinale rhizome, Allium sativum bulb, and Moringa oleifera seeds, were evaluated for progeny inhibition in fish beetle, Dermestes maculatus, and incidence of bacteria and fungi in smoked-dried Clarias gariepinus. Materials and Methods Cleaned C. gariepinus were separately soaked in extracts of these selected plants (50 g/1000 ml) for 60 min before smoke-drying in a mud kiln at 105°C and later divided into lots. Sensory evaluation was conducted on uninfested fishes in lot A while fishes in lot B was artificially infested with five pairs of newly emerged adult D. maculatus for 10 days. Number of emerged larva, adult insects, and incidence of microorganisms before and following 90 days in storage after infestation were used as indices of potency of the extracts. Results Results obtained showed that all the treated uninfested smoked-dried C. gariepinus retained high scores for taste, texture, aroma, and appearance within the first 5 weeks of storage after smoking when compared with the control. This implied that the tested extracts had no negative effect in terms of sensory attributes on the treated fish during storage and can therefore be used for fish preservation. Meanwhile, A. sativum among all the selected extracts had the least number of larvae (17.67 ± 1.45), adult (21.00 ± 1.53), fungi (9.00 × 102 ± 0.53 sfu/ml) and bacteria counts (11.33 ×102 ± 0.33 cfu/ml) following 90 days in storage after infestation. Conclusion Allium sativum among the tested extracts proved to be most effective and could be recommended for control of D. maculatus and microorganisms in smoked C. gariepinus.
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Kamini, Kamini, Pipih Suptijah, Joko Santoso, and Sugeng Heri Suseno. "Extraction by Dry Rendering Methode and Characterization Fish Oil of Catfish Viscera Fat by Product of Smooked Fish Processing." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 3 (February 6, 2017): 196. http://dx.doi.org/10.17844/jphpi.v19i3.15071.
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Abstract<br />The catfish viscera fat, is cathfish processing by-products, has potential to be used as a source of raw<br />material for production of fish oil. This study aimed to analyze the value of proximate, heavy metal content<br />and fatty acid profile of catfish viscera fat (Pangasius hypopthalmus) and characterized fish oil extracted by<br />dry rendering in various temperature and time than compared it to fish oil extracted by stove heating to<br />obtain the best treatment. Proximate, heavy metal residue, and the fatty acid profile analysis were conducted<br />for characterizing catfish viscera fat. Fish oil extraction was conducted by dry rendering in various<br />temperatures of 50, 60, 70, 80 °C for 1, 2, and 3 hours. Fish oil quality was determined by the chemical<br />characteristics i.e. PV, FFA, anisidin and TOTOX. The results of the study showed that fat content of catfish<br />fat viscera was 88.19 %, the heavy metals content was below SNI standart to be consumed, and fatty acid<br />profile composition was SFA>MUFA>PUFA. The highest fatty acid content was oleic acid. The best fish oil<br />quality was resulted on temperature extraction of 50°C for 2 hours with yield value, PV, FFA, anisidin, and<br />TOTOX were 45.17 %, 2.77 meq/kg, 0.83 %, 2.86 meq/kg, 8.39 meq/kg respectively. This result was not<br />significantly different with fish oil extracted by the stove heating expect for yield and PV were 80.11% and<br />6.52 meq/kg, respectively.<br /><br />
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Pusey, Bradley J., Timothy D. Jardine, Stuart E. Bunn, and Michael M. Douglas. "Sea catfishes (Ariidae) feeding on freshwater floodplains of northern Australia." Marine and Freshwater Research 71, no. 12 (2020): 1628. http://dx.doi.org/10.1071/mf20012.
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Flooding of the terminal floodplains of northern Australian rivers provides a greatly expanded, productive habitat accessed by both freshwater and estuarine fishes. This study aimed to determine the extent to which sea catfishes (Ariidae) make use of floodplains and the reasons for doing so (i.e. spawning, feeding). Nine species were collected from floodplains and adjacent distributaries of the Mitchell and Flinders rivers; floodplain use was largely restricted to freshwater species. Evidence of prior wet season spawning was recorded for some species, and mesenteric lipid deposits indicated that fish were in good condition. However, little evidence of spawning on floodplains was found. Stomach content analysis and stable isotope analysis indicated dietary partitioning, particularly between freshwater and estuarine species, but also within freshwater species, and indicated that some species were responsive to variations in food availability. Isotope analyses suggest extensive movement between freshwater, estuarine and marine habitats at different life history stages for the catfish assemblage studied. Terminal floodplains of northern Australian rivers provide important temporary habitat for adult sea catfishes to feed upon, but do not appear to be used as spawning grounds.
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Oni, E. O., M. C. Adetunji, D. D. John-Babatunde, and A. M. Omemu. "Effect of Moringa leave Marinade on aflatoxin in fresh and smoked African catfish (Clarias gariepinus)." Food Research 5, no. 1 (December 12, 2020): 185–94. http://dx.doi.org/10.26656/fr.2017.5(1).363.
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This study aimed at evaluating the effect of Moringa leaves Marinade (MOM) on aflatoxin contamination of Clarias gariepinus. A total of thirty fresh fish samples (n = 30) grouped into four; Fresh fish without smoking and storage, smoked fish +1% and 2% Moringa oleifera Marinade (MOM) respectively and Control (0% MOM) were subjected to microbiological and HPLC analysis while storing for 0-3 months. Mean CFU/g of 2.8 and 3.1 x 102 CFU/g for bacteria and fungi were recovered, respectively. Furthermore, four bacteria and fungi genera each of which Aspergillus spp. was the most predominant (57%) were recovered from the fishes. Aflatoxin concentration increased progressively in 0% MOM smoked fish as the storage period increased, while aflatoxin concentration reduced in the fishes treated with 2% MOM (p≥0.05). On average, between 1-40% reduction in aflatoxin concentration and increased keeping quality was enhanced with 2% MOM treatment. These findings recommend the possibility of the use of moringa leaves in the treatment of commercially smoked fish.
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Kamini, Kamini, Pipih Suptijah, Joko Santoso, and Sugeng Heri Suseno. "Extraction by Dry Rendering Methode and Characterization Fish Oil of Catfish (Pangasius hypopthalmus) Viscera Fat by Product of Smooked Fish Processing." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 3 (December 27, 2016): 196. http://dx.doi.org/10.17844/jphpi.v19i3.14477.
Full textAbstract:
The catfish viscera fat, is cathfish processing by-products, has potential to be used as a source of<br />raw material for production of fish oil. This study aimed to analyze the value of proximate, heavy metal<br />content and fatty acid profile of catfish viscera fat (Pangasius hypopthalmus) and characterized fish oil<br />extracted by dry rendering in various temperature and time than compared it to fish oil extracted by stove<br />heating to obtain the best treatment. Proximate, heavy metal residue, and the fatty acid profile analysis<br />were conducted for characterizing catfish viscera fat. Fish oil extraction was conducted by dry rendering<br />in various temperatures of 50, 60, 70, 80 °C for 1, 2, and 3 hours. Fish oil quality was determined by the<br />chemical characteristics i.e. PV, FFA, anisidin and TOTOX. The results of the study showed that fat content<br />of catfish fat viscera was 88.19 %, the heavy metals content was below SNI standart to be consumed, and fatty<br />acid profile composition was SFA>MUFA>PUFA. The highest fatty acid content was oleic acid. The best fish<br />oil quality was resulted on temperature extraction of 50°C for 2 hours with yield value, PV, FFA, anisidin,<br />and TOTOX were 45.17 %, 2.77 meq/kg, 0.83 %, 2.86 meq/kg, 8.39 meq/kg respectively. This result was not<br />significantly different with fish oil extracted by the stove heating expect for yield and PV were 80.11% and<br />6.52 meq/kg, respectively.<br /><br />
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Hadinoto, Hadinoto, Eni Suhesti, and Eno Suwarno. "PEMANFAATAN BIJI KARET DAN LIMBAH IKAN PATIN SEBAGAI BAHAN PEMBUATAN PAKAN IKAN, PUPUK ORGANIK CAIR DAN PAKAN UNGGAS." Wahana Forestra: Jurnal Kehutanan 12, no. 1 (January 16, 2017): 1–16. http://dx.doi.org/10.31849/forestra.v12i1.195.
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Rubber trees planted by people in several districts of Riau province, among them the Kampar regency. Rubber seed that has not valuable feed source can be used for one of them is a main ingredient of fish feed. In addition to rubber seed, Tower Island Village also produces waste Patin fish entrails. The waste generated from the business community to make smoked fish Patin. During this time the waste is dumped in waterways around residences. Problems IbM partners: 1) Partners have the willingness to do busine ss, but do not have the knowledge and skills in the field of production, 2) Partners do not have knowledge in aspects of business management, which is a way of packaging, marketing, and business analysis calculations. Solutions are performed: training and assistance for people with the target communities to utilize the waste around them. Outputs from this IbM activities include: 1) The method of making rubber seed flour; 2) Method of making the feed / fish pellet made from rubber seed flour; 3) The method o f making a liquid organic fertilizer from waste fish entrails catfish; 4) Method of manufacture of poultry feed from catfish waste; 5) rubber seed flour; 6) Feed / fish pellet; 7) liquid organic fertilizer; 8) feed poultry. Mitra has begun to open wawasany a in utilizing waste rubber seed and catfish after receiving an explanation from the team. Partners receive initial skills in the utilization of fish waste and rubber seeds to manufacture pellets of fish, organic liquid fertilizer and poultry feed.
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Abanikannda, Olatunji, Ayobami Abagun, and Abayomi Jimoh. "PSI-37 Comparative evaluation of growth parameters in pure and hybrid African catfishes." Journal of Animal Science 97, Supplement_3 (December 2019): 253–54. http://dx.doi.org/10.1093/jas/skz258.515.
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Abstract Aquaculture assist in bridging the wide gap by meeting demands for fish and provision of less expensive animal protein in Nigeria. Clarias gariepinus and Heterobranchus bidorsalis are generally acceptable important species of catfish, and highly priced because of their high biological values in terms of protein retention, assimilation and low cholesterol content, necessitating the need to evaluate their potentials. Fingerlings of Clarias gariepinus (purebreed) and Clariabranchus (hybrid) were grouped according to their weights, assigned to two tanks each and fed 5% of their body weight daily. Measurements of body weight (g), total length (cm) and standard length (cm) were taken weekly on each fish. At the commencement of the experiment, there were 281 fishes comprising 150 purebreed and 131 hybrid. By the end of the study (21 days), some died or were outliers and a total of 224 fishes comprising 108 purebreed and 116 hybrid were finally evaluated. Indices computed included Length-Weight Relationship (LWR), Fulton’s Condition Factor (K), Absolute Growth Rate (AGR), Specific Growth Rate (SGR), Relative Growth Rate (RGR) and Mean Growth Rate (MGR). The coefficient of the LWR was respectively 2.42 and 2.82 for the pure breed and hybrids. Effect of breed was highly significant (P < 0.01) on all variables studied and the hybrid consistently outperformed the pure breed except in exception of condition factor which is a measure of wellness of the fish (Table 1). The superiority of the hybrid in all variables studied except condition factor, is indicative of its potential as a better feed converter, thus it is more efficient in feed utilization, and it is recommended for commercial fish producers for maximum yield and higher profit. The study provides a veritable platform for further research on the potentials of interspecific hybridization with a view to minimizing production cost engendered by high cost of feed.
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Idodo-Umeh, George, and Reginald Victor. "Some aspects of the ecology of bagrid catfishes in a southern Nigerian river." Journal of Tropical Ecology 7, no. 2 (May 1991): 221–32. http://dx.doi.org/10.1017/s0266467400005381.
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ABSTRACTSome aspects of the ecology of bagrid catfishes in River Ase, southern Nigeria were studied for a period of two years. Nine species of Bagridae were recorded and these accounted for 15.0% of the number and 24.4% of the weight of all fish captured. Chrysichthys nigrodigitatus and Chrysichthys auratus longifilis were the principal species. C. nigrodigitatus was a rainy season species, while C. auratus longifilis was abundant in both dry and rainy seasons. Both species showed a major peak in catches between 0600 and 0900 h. C. nigrodigitatus exhibited a minor peak in catches between 1500 and 2100h, while C. auratus longifilis showed a minor peak between 1500 and 1800h. The spatial distribution of C. nigrodigitatus and C. auratus longifilis populations was heterogeneous. Bagrid fishes were an important component in the fish yield of the study river and its species composition has been compared with those of other Nigerian waters. The distribution and abundance of C. nigrodigitatus and C. auratus longifilis are discussed in detail.
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ABDULLAH, MOHD LUTFI, SITI AZIZAH MOHD NOR, and DARLINA MD NAIM. "Use of DNA barcode in the identification of catfishes (Siluriformes: Ariidae) from Malaysia." Biodiversitas Journal of Biological Diversity 18, no. 4 (October 4, 2017): 1358–66. http://dx.doi.org/10.13057/biodiv/d180411.
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Abdullah ML, Nor SAM, Naim DMd. 2017. Use of DNA barcode in the identification of catfishes (Siluriformes: Ariidae) from Malaysia. Biodiversitas 18: 1358-1366. The genus Ariidae contains many valuable fish species threatened by overfishing, but knowledge on distribution and threats is still limited due to taxonomic ambiguities. The aim of this study was to apply DNA barcoding techniques to establish a resource of DNA for identification of Ariidae species in Malaysia. A 621 bp of mitochondrial cytochrome oxidase subunit I (COI) gene was utilized to resolve phylogenetic relationships and molecular taxonomy of eight presumed Malaysian Ariid species. We found the monophyly of most species was well established with a mean Kimura-2 parameter (K2P) interspecies distance of 9.6% except for two species, Arius venosus, and Nemapteryx caelata that have very low interspecies genetic distance. The BLAST result shows only two species matched the presumably eight identified fish species. Such discrepancies could arise as a result of misidentifications or errors in GenBank database input, hybridization or incomplete lineage sorting. We suggest the use of DNA barcoding is integrated into the workflow during taxonomic studies as it could significantly increase knowledge about species distributions.
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KONAN, Felix Koffi, Charles Koffi BOUSSOU, Yves Kotchi BONY, Mexmin Koffi KONAN, Edia Oi EDIA, and Boubacar DIALLO. "Near Threatened Fishes of the World: Malapterurus teugelsi Norris, 2002 (Siluriformes: Malapteruridae)." Aquatic Science and Technology 6, no. 2 (March 3, 2018): 1. http://dx.doi.org/10.5296/ast.v6i2.12755.
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Malapterurus teugelsi Norris, 2002, an endemic electric catfishes of the Kogon River Basin in Guinea, is assessed as Near Threatened due to its restricted distribution area, fishing pressure, mining activities, loss of habitats and aquatic pollution. This fish has a high cultural representation in the folklore of the local population. Moreover, in addition to its very limited distribution, very little information exists on its reproductive biology and its food ecology. Therefore, singular care must be paid to it for its conservation.
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Sarkar, M. J. A., and M. M. Rashid. "Pathogenicity of the bacterial isolate Aeromonas hydrophila to catfishes, carps and perch." Journal of the Bangladesh Agricultural University 10, no. 1 (October 8, 2012): 157–61. http://dx.doi.org/10.3329/jbau.v10i1.12108.
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Pathogenicity of a bacterial isolate Aeromonas hydrophila recovered from naturally diseased shing fish was investigated against catfishes (Heteropneustes fossilis and Clarias batrachus), carps (Labeo rohita, Catla catla and Cirrhinus cirrhosus) and perch (Anabas testudineus) of average body weight of 20.4 g for H. fossilis, 25.6 g for C. Batrachus, 35.2 g for L. rohita, 25.7 g for C. catla, 30.5 g for C. cirrhosus and 20.3 g for A. testudineus. Two different doses viz. 6.7 × 106 and 6.7 × 105 CFU/fish were injected intramuscularly. Pathogenicity of A. hydrophila was confirmed at water temperature of 30°C by mortality of 60% to 100% of all the tested fishes within 2-11 days. Injected A. hydrophila was re-isolated from liver, kidney and intestine of all the tested fishes. The highest bacterial loads in catfishes were found to be 5.5 × 108 CFU/g in the liver of H. fossilis and 5.6 × 107 CFU/g in the intestine of C. batrachus. The lowest bacterial loads were found to be 2.2 × 102 CFU/g in the kidney of H. fossilis and 2.4 × 103 CFU/g in the liver of C. batrachus. The highest bacterial loads in carps were found to be 4.9 × 109 CFU/g in the liver of C. catla, 7.7 × 108 CFU/g in the intestine of L. rohita and 5.8 × 108 CFU/g in the intestine of C. cirrhosus. The lowest bacterial loads were found to be 2.7 × 104 CFU/g in the kidney of C. catla, 3.0 ×104 CFU/g in the kidney of L rohita and 5.6 × 103 CFU/g in the kidney of C. cirrhosus. The highest and lowest bacterial load in perch was found to be 6.4 × 10' CFU/g and 1.6 × 102 CFU/g in the intestine and kidney of A. testudineus respectively. In all the cases of intramuscular injection, external pathology was found. Reddish anal region and fm bases were observed. It was understood that the isolate was a highly virulent pathogen for the challenged fishes. DOI: http://dx.doi.org/10.3329/jbau.v10i1.12108 J. Bangladesh Agril. Univ. 10(1): 157161, 2012
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Tutuarima, Tuti. "TOTAL PLATE COUNT ON SMOKED CATFISH IN PANORAMA MARKET BENGKULU CITY DURING STORAGE ROOM TEMPERATURE." Jurnal Agroindustri 6, no. 1 (May 31, 2016): 28–33. http://dx.doi.org/10.31186/j.agroind.6.1.28-33.
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The purpose of this study was to evaluate the quality of smoked catfish are traded on the Panorama Market Bengkulu City seen from the total of microorganisms during storage at room temperature. This study uses a combination of exploratory sequential model (combining qualitative and quantitative research methods, respectively). Samples were taken from merchants of smoked catfish in the Panorama Market Bengkulu City. Storage of samples carried out for 21 days. Analysis of total plate count (TPC) was conducted in the Laboratory Protection UNIB. Quality parameters used refer to SNI 2725.1: 2009 on quality requirements of smoked fish. Determination of total plate count was performed according to SNI 01-2332.3-2006. Each sample testing was done 2 replications. ALT test results show an increasing number of microbes during storage. ALT value on day 0 of storage in the range of 8.2 x 104 colonies/g - 1.4 x 106 colonies/g, whereas on day 21 ranged from 2.0 x 106 colonies/g - 3.9 x 106 colonies/g. The high value of ALT is caused by the processing, packaging, transportation, storage conditions, as well as the manner of presentation for sale on the market. Microorganism contamination will increase with increasing chain length distribution.
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ALVES, PHILIPPE V., ALAIN DE CHAMBRIER, JOSÉ L. LUQUE, and TOMÁŠ SCHOLZ. "Towards a robust systematic baseline of Neotropical fish tapeworms (Cestoda: Proteocephalidae): amended diagnoses of two genera from the redtail catfish, Phractocephalus hemioliopterus." Zootaxa 4370, no. 4 (January 12, 2018): 363. http://dx.doi.org/10.11646/zootaxa.4370.4.3.
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Species of two monotypic genera, Ephedrocephalus Diesing, 1850 and Zygobothrium Diesing, 1850 (Cestoda: Proteocephalidae), parasites of one of the most basal members of the catfish family Pimelodidae, the redtail catfish, Phractocephalus hemioliopterus, in the Neotropical Region, are redescribed based on the evaluation of type specimens and newly collected material. Generic diagnoses are amended to provide a robust baseline for the future re-arrangement of the classification of proteocephalid cestodes. Ephedrocephalus is typified by the medullary position of the ovary and uterus, the cortical distribution of vitelline follicles (dispersed throughout almost the entire ventral cortex) and the testes in one dorsal field. Zygobothrium is primarily characterized by its possession of a robust scolex bearing four uniloculate suckers with two openings each and by the tetralobed velum (laciniations) on every proglottid (two on the ventral and two on the dorsal side). The redtail catfish is the definitive host of as many as seven species of proteocephalid cestodes, which, however, do not represent a monophyletic group. Some species, including Z. megacephalum, are among the earliest diverged parasites of Neotropical catfishes, being closely related to African and North American proteocephalids from catfishes, whereas others such as E. microcephalus belong to more recently diverged taxa with uncertain interrelations. Unlike most proteocephalids of the redtail catfish, which almost always infect the anterior parts of the host intestine, E. microcephalus and Z. megacephalum occur exclusively in its posterior third. A key to the identification of the proteocephalid species parasitizing P. hemioliopterus is also presented.