Relevant bibliographies by topics / O. niloticus

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Academic literature on the topic 'O. niloticus'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "O. niloticus"

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SCORDELLA, G., F. LUMARE, A. CONIDES, and C. PAPACONSTANTINOU. "First Occurrence Of The Tilapia Oreochromis Niloticus Niloticus (Linnaeus, 1758) In Lesina Lagoon (Eastern Italian Coast)." Mediterranean Marine Science 4, no. 1 (June 1, 2003): 41. http://dx.doi.org/10.12681/mms.239.

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Individuals of the tilapia species Oreochromis niloticus niloticus(Linnaeus, 1758) were caught in Lesina Lagoon during experimental sampling for the shrimp Penaeus kerathurus using fyke net traps from December 1999 to September 2000. The species O. niloticusis not native in Italian coastal waters, although attempts of tilapia culture in land-based aquaculture farms were occasionally carried out in the past. The number of individuals captured in the samples suggests a colonization of the area of Lesina lagoon. The highest catches were observed during July. In July, the individuals caught represented the 22.3±4.1 % of the total catch weight. Such colonization of a marine environment byO. niloticusniloticus is the first case reported for Italy. The occurrence of the species in Lesina lagoon is attributed to fish which escaped from fish farms in the area and entered the lagoon through the numerous streams and irrigation-drainage channels that outflow along the south coastline.
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Peterka, Miroslav, Jean Yves Sire, Maria Hovorakova, Jan Prochazka, Luc Fougeirol, Renata Peterkova, and Laurent Viriot. "Prenatal development of Crocodylus niloticus niloticus Laurenti, 1768." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 314B, no. 5 (January 13, 2010): 353–68. http://dx.doi.org/10.1002/jez.b.21335.

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Ayo, Victoria Ifeoluwa, Dickson Achimugu Musa, and Evans Chidi Egwim. "Extraction and characterization of type 1 collagen from the skin and scales of Heterotis niloticus and Lates niloticus." AROC in Pharmaceutical and Biotechnology 1, no. 2 (September 14, 2021): 01–10. http://dx.doi.org/10.53858/arocpb01020110.

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The study is aimed to extract and characterize collagens from the skin and scale of two selected Nigerian freshwater fish species (Heterotis niloticus and Lates niloticus) using either pepsin (PSC) or acid-soluble (ASC) extraction. The collagen was extracted using 0.5M acetic acid and pepsin. The collagen yield was determined and characterized by SDS PAGE, and FTIR. Collagen extraction yields varied with the extraction process; the yield was significantly higher in the skin (5.08±0.34–33.97±1.78 %) than in the scale (1.76–8.05 %). The absorption peaks of the extracted collagen using acetic acid and pepsin show that only ASC of skin (3344.27 cm-1) and scale (3495.85 cm-1) of H. niloticus shows the peaks characteristic of Amide A, while Amide B peaks of collagen extracted from the skin and scale of H. niloticus and L. niloticus were found at 2974.46 cm-1 and 2925.7 cm-1 , representing an asymmetrical stretch of CH2. Similarly, ASC on the skin (1558.36 cm-1) and scale (1576.46 cm-1) of H. niloticus shows the absorption peak characteristics of amide II. ASC on the skin of H. niloticus (1671.05 cm-1), PSC on scale of H. niloticus (1658.55 cm-1), and on scale of H. niloticus (1678.65 cm1) shows absorption peaks in range characteristic of amide 1. There were no differences in the skin and scale collagen profiles among the two fish species when characterized by SDS-PAGE. Our data revealed that the skin and scale of Lates niloticus and Heterotis niloticus could be a good alternative source of high-quality collagen for industries.
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Amon, Nicolas Yao, Sylvain Kouassi Konan, Dongo Koffi Kouassi, and Kouakou Yao. "Performances zootechniques des mâles de Oreochromis niloticus (Linné, 1758), Sarotherodon melanotheron (Rüppell, 1853) et leurs hybrides en phase de grossissement en cages installées en étang." International Journal of Biological and Chemical Sciences 14, no. 5 (September 14, 2020): 1611–17. http://dx.doi.org/10.4314/ijbcs.v14i5.10.

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En Côte d’Ivoire, l’élevage en milieu lagunaire a du mal à prendre son envol du fait du manque de poisson intéressant au plan zootechnique. En vue de rechercher une bonne espèce à potentialité piscicole, deux souches pures de tilapia (Oreochromis niloticus et Sarotherodon melanotheron) et leurs hybrides (♀ S. melanotheron x ♂ O. niloticus et ♀ O. niloticus x ♂ S. melanotheron) ont été étudiées en phase de grossissement en cages. Ainsi, deux cent quarante (240) poissons issus d’un prégrossissement en bacs en béton avec des poids moyens initiaux compris entre 33,60 ± 2,11g et 70,25 ± 2,20g ont été repartis en 8 lots à raison de deux lots par type de croisement. Ces poissons ont été suivis pendant six (6) mois durant lesquels ils ont reçu quotidiennement un aliment titrant 30% de protéines. Les résultats relatifs aux performances de croissance ont révélé que les hybrides issus du croisement ♀ O. niloticus x ♂ S. melanotheron ont une croissance (0,70 ± 0,02g/j) supérieure à celles des hybrides de ♀ S. melanotheron x ♂ O. niloticus (0,45 ± 0,01g/j) et de S. melanotheron (0,37 ± 0,03 g/j). La croissance de O. niloticus a été la meilleure (1,22 ± 0,01g/j). Quant à la survie, les hybrides et leurs parents S. melanotheron ont enregistré un taux supérieur à celui de O. niloticus (100% contre 83,33%). Ces résultats suggèrent que les hybrides ont une adaptabilité aux milieux lagunaires comparable à celle de S. melanotheron. L’ hybride issus du croisement ♀ O. niloticus x ♂ S. melanotheron qui a mieux hérité de la résistance au milieu lagunaire de S. melanotheron ainsi que de la bonne croissance de O. niloticus, se présente comme le meilleur choix pour une pisciculture lagunaire à grande échelle.Mots clés : Tilapias, Croissance, survie, lagune. English Title: Zootechnical performances of males of Oreochromis niloticus (Linné, 1758), Sarotherodon melanotheron (Rüppell, 1853) and their hybrids in growth phase in cages installed in pondIn Ivory Coast, the breeding in lagoon environment has difficulty to take off because of the lack of interesting fish at the zootechnical level. In order to identify a potential candidate species for fish farming in brackish water, two pure strains of tilapia (Oreochromis niloticus and Sarotherodon melanotheron) and their hybrids (♀ S. melanotheron x ♂ O. niloticus and ♀ O. niloticus x ♂ S. melanotheron) were studied in the growth phase in cages. Thus, two hundred and forty (240) fish from a pregrowth in concrete tanks with initial average weights between 33.60 ± 2.11g and 70.25 ± 2.20g were divided into 8 lots at the rate of two lots by type of crossing. These fish were followed for six (6) months during which they received daily food containing 30% protein. The results relating to the growth performances revealed that the hybrids resulting from the crossing ♀ O. niloticus x ♂ S. melanotheron have a growth (0.70 ± 0.02 g/d) higher than those of the hybrids of ♀ S. melanotheron x ♂ O. niloticus (0.45 ± 0.01 g/d) and S. melanotheron (0.37 ± 0.03 g/d). The growth of O. niloticus was the best (1.22 ± 0.01 g/d). As for survival, the hybrids and their parents S. melanotheron recorded a higher rate than that of O. niloticus (100% against 83.33%). These results suggest that the hybrids have good adaptability to the lagoon environment like S. melanotheron. The hybrid from the cross ♀ O. niloticus x ♂ S. melanotheron, which has better inherited the resistance to the lagoon environment of S. melanotheron as well as the good growth of O. niloticus, is the best choice for lagoon fish farming. in large scale.Keywords: Tilapias, growth, survival, lagoon.
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Mitra, Amlan Kumar, and Probir Bandyopadhyay. "First record of ectoparasitic African Trichodinids (Ciliophora: Peritrichida) in a cichlid fish Oreochromis mossambicus (Peters 1852) from the Churni river system, West Bengal, India." Animal Biology 56, no. 3 (2006): 323–33. http://dx.doi.org/10.1163/157075606778441912.

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AbstractOreochromis mossambicus (Peters 1852) and Oreochromis niloticus niloticus Linnaeus, 1758 are two popular freshwater fishes introduced from Africa to India. There are many records of different species of trichodinid ectoparasites infesting wild and cultured cichlids in Africa, but no such study has been conducted on this parasitic group in India. The fishes Oreochromis mossambicus and Oreochromis niloticus niloticus were investigated for the occurrence of trichodinid ciliophorans. Oreochromis mossambicus was found positive for two species, viz., Trichodina centrostrigeata Basson, Van As & Paperna, 1983 and Paratrichodina africana Kazubski & El-Tantawy, 1986. Oreochromis niloticus niloticus was found not to be infested with any species of trichodinid ciliophorans, although, interestingly, Paratrichodina africana was first discovered in this host fish. Comparative descriptions and prevalence of these two above-mentioned species are presented.
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Susilo, Yunus. "Efek Teknologi Lucutan Plasma Pada Organoleptik Daging Ikan Nila (Oreochromis niloticus)." Jurnal Biosains Pascasarjana 23, no. 1 (June 10, 2021): 16. http://dx.doi.org/10.20473/jbp.v23i1.2021.16-27.

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AbstrakPenelitian ini bertujuan untuk mengetahui efektivitas ozon dalam menghambat kerusakan pada ikan nila (Oreochromis niloticus). Penelitian ini dilakukan dengan memberikan pemaparan ozon pada ikan nila (Oreochromis niloticus) dengan teknik pemaparan ozon melalui air dengan variasi waktu alir, yaitu 0 detik, 540 detik, 360 detik, dan 180 detik. Sampel ikan nila (Oreochromis niloticus) diperoleh dari tempat budidaya ikan nila di Tanggulangin, Kota Sidoarjo. Penelitian ini dilakukan dengan teknik Rancangan Acak Lengkap (RAL). Pengamatan dilakukan setiap 12 jam sekali selama 48 jam atau 2 hari berupa pengujian organoleptik pada ikan nila (Oreochromis niloticus). Hasil uji organoleptik menunjukkan bahwa teknik paparan ozon melalui air dengan waktu alir 3 menit dalam waktu penyimpanannya selama 12 jam dengan konsentrasi ozon 0,0203 mg/L memberikan hasil yang terbaik dalam menghambat kerusakan mutu kualitas ikan nila (Oreochromis niloticus) yang ditandai dengan perubahan pada mata, insang, lendir permukaan badan, daging, bau, dan tekstur ikan nila (Oreochromis niloticus) serta spesifikasi pada ikan yang paling efektif dalam menghambat kerusakan adalah pada penampakan lendir permukaan badan dan bau pada ikan nila (Oreochromis niloticus).
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Amuneke, K. E., O. R. Oguntade, F. C. Ikeogu, and U. A. Nomeh. "Effect of natural preservatives on the organoleptic characteristics and storage stability of smoked Heterotis niloticus." Agro-Science 19, no. 2 (April 22, 2020): 31–35. http://dx.doi.org/10.4314/as.v19i2.5.

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Improvement of consumer’s palatability of Heterotis niloticus was investigated by value addition with natural spices and salt to improve its palatability and shelf-life. The major problem of H. niloticus is its poor taste, hence low demand and poor consumer’s acceptability which affects the market value. The objective of this study was to improve the palatability and shelf-life of H. niloticus using selected natural spices. Heterotis niloticus, procured and treated with natural spices and salt were allowed to drain for one hour, subjected to charcoal fired smoking kiln for 12 hours, cooled and stored for 8 weeks at ambient temperature before microbial analysis. The result showed that treatment 1 had the best quality (37.7%), followed by control sample (34.7%), and treatment 2 (28.9%), while the least was treatment 3 (21.6%). Microbial analysis shows that no Salmonella, Coliforms and E. coli were detected from the samples after smoking. Staphylococcus aureus count ranged from 2 × 102 to 9 × 102 but it was not detected in treatment 1. Improvement of the consumers’ palatability of H. niloticus and improved storage stability by spicing methods improved the poor taste of H. niloticus which has been discriminated despites excellent muscle quality. Key words: Heterotis niloticus, organoleptic, spicing, microbial analysis
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Khairani, Shafia, Faisal Fikri, Agus Purnomo, and Muhammad Thohawi Elziyad Purnama. "A Comparative Histological Study of Skin in Clarias gariepinus and Oreochromis niloticus." Media Kedokteran Hewan 32, no. 2 (May 22, 2021): 90. http://dx.doi.org/10.20473/mkh.v32i2.2021.90-96.

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This study aimed to evaluate the comparative of histological figures in Clarias gariepinus and Oreochromis niloticus skin. A total of 18 samples were observed and collected the skin preservation. The hematoxylin-eosin staining performed to determine the histological structure. Results showed that there were different structures in the epidermis and dermis layer between C. gariepinus and O. niloticus skin. Club cells showed dominated in the epidermis layer of C. gariepinus. The pigmented cell showed clearly in the basement layer of C. gariepinus compared to O. niloticus. Stratum compactum in O. niloticus also showed adequate compared to C. gariepinus.
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SHERIF, A. H., E. T. ALSOKARY, and H. A. ESAM. "Assessment of titanium dioxide nanoparticle as treatment of Aeromonas hydrophila infection in Oreochromis niloticus." Journal of the Hellenic Veterinary Medical Society 70, no. 3 (October 30, 2019): 1697. http://dx.doi.org/10.12681/jhvms.21796.

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Nanoproducts became widely used materials all over the world. Antimicrobial properties of titanium dioxide (TiO2) nanoparticle (NP) were examined against Aeromonas hydrophila (A. hydrophila) bacteria and the minimum inhibitory concentration (MIC) was found to be 20 μg/ml of TiO2NP. In addition, the treatment efficacy of TiO2NP was examined in Oreochromis niloticus (O. niloticus) infected with A. hydrophila. One hundred and eighty fish (54±2.4 g b.w.) were divided into six groups (G). O. niloticus in G1, G2 and G3 were fed for 30 days with 0, 20 and 100 μg/g b.w. TiO2NP, respectively, while G4, G5 and G6 were i.p. injected with 0.2 ml distal water, 20 and 100 μg/g b.w. TiO2NP, respectively, for three times with ten days of interval. The blood parameters as well as some of the biochemical parameters of O. niloticus that received high dosage of TiO2NP were significantly affected regardless to the administration route. Elevation of the activities of glutathione peroxidase (GPx) and metallothionine (MT) were recorded with the high dosage. Furthermore, O. niloticus subjected to high dosage of TiO2NP had the lower survival rate (SR%) especially with the injection route (50%). On the other hand, no significant changes were demonstrated with the perceived TiO2NP MIC. The mortality rate (MR%) of challenged O. niloticus against A. hydrophila was decreased in case of TiO2NP MIC exposure, as G2 and G5 revealed 20 and 30%, respectively. Therefore, the 20 μg/g b.w. of TiO2NP could safely protect O. niloticus against A. hydrophila infection since no health hazards was observed. Meanwhile, health status of O. niloticus was adversely affected with high dosage of TiO2NP irrespective to the route of administration.
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AMIN, Nour El-Din, I. S. ABDALLAH, T. ELALLAWY, and S. M. AHMED. "Motile Aeromonas septicaemia among Tilapia nilotica (Sarotherodon niloticus) in upper Egypt." Fish Pathology 20, no. 2/3 (1985): 93–97. http://dx.doi.org/10.3147/jsfp.20.93.

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Dissertations / Theses on the topic "O. niloticus"

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Martinez, Chavez Carlos Cristian. "Photic Entrainment and onset of puberty in Nile tilapia Oreochromis niloticus niloticus." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/354.

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Despite teleosts being the largest and most diverse group of vertebrates, fish models currently used to study photoperiodic effects on fish physiology have been limited to a few species, most of which are temperate seasonal breeders. The overall aim of this work was to expand our knowledge on circadian biology and environmental physiological effects in Nile tilapia (Oreochromis niloticus niloticus), a continuous breeding species of tropical-subtropical origin. The circadian light axis of Nile tilapia is described with regards to melatonin production. Circadian melatonin profiles of fish under 12L:12D photoperiods were observed to be low at day and high at night, suggesting melatonin to be an entraining signal as observed in all other vertebrates. When constant light (LL) was used, such day and night fluctuations where abolished. However when fish where exposed to constant darkness (DD) a strong robust endogenous melatonin rhythm was found, suggesting the presence of circadian oscillators in this species. Importantly, this endogenous rhythm was observed to be maintained for at least three weeks under darkness and proved to be circadian in nature. Moreover, although the melatonin system was able to produce day and night melatonin rhythms when exposed to a different (6L:6D) photocycle, the oscillator appeared to not be entrainable to such a short photo cycle when exposed to DD, as melatonin levels remained high. When comparing the circadian organization of different teleost species including Nile tilapia, preliminary studies showed at least three divergent circadian light organizations in teleosts. Nile tilapia was characterised by a pineal gland far less sensitive than in other fish species as demonstrated through in vitro studies. Furthermore, pineal melatonin production was clearly dependent on the light perceived by the eyes as ophthalmectomy resulted in basal plasma melatonin levels during the dark period. These findings are the first to be reported in a teleost and could be comparable to the circadian light organization of higher vertebrates such as mammals. The onset of puberty of Nile tilapia was studied with regards to the newly discovered Kiss1/GPR54 system. Such a system has recently been discovered in mammals and found to be the primary switch of the brain-pituitary-gonadal (BPG) axis. The results of this study not only suggest a link between the Kiss1/GPR54 system and the onset of III puberty in this tropical batch spawning teleost, that would be a highly conserved feature across vertebrates, but also that the transcriptional mechanisms regulating GPR54 expression could be directly or indirectly influenced by light. Finally, a study was conducted on the effects of different intensities of continuous light (LL) on the growth and sexual development of Nile tilapia up to first maturation. The results showed a significant growth response of fish in all LL treatments compared to control fish. Importantly, this confirmed that LL enhances growth in this species and suggests that it is the light regime more than the intensity which is having an effect. This work thus provides important basic knowledge of the light entrainment pathway and circadian melatonin rhythms in Nile tilapia. Of special importance is the discovery of a strong endogenous melatonin oscillator and a novel circadian organization in fish which would seem to be homologous to that observed in higher vertebrates. Moreover, this work provides evidence that the newly discovered Kiss1/GPR54 system has a similar role in fish as has been found in mammals and that such a system could be directly or indirectly regulated by light. If so, Nile tilapia and other fish species could become important models in the chronobiology and reproduction fields. Finally, this work not only increases our basic and applied knowledge of this species, but also broadens our understanding of the circadian light axis in teleosts and its mediatory effects on reproduction.
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Fogaça, Fabíola Helena dos Santos [UNESP]. "Efeito do tocoferol no desempenho e na estabilidade lipidica da tilápia nilotica (Oreochromis niloticus)." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/86711.

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Made available in DSpace on 2014-06-11T19:22:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-01-27Bitstream added on 2014-06-13T19:48:40Z : No. of bitstreams: 1 fogaca_fhs_me_jabo.pdf: 596326 bytes, checksum: 558f30e4e45f55982f56059d2fab70b4 (MD5)
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Universidade Estadual Paulista (UNESP)
A vitamina E é usada nas dietas com a finalidade de melhorar o crescimento, a resistência ao estresse e a doenças, assim como a sobrevivência de peixes. Também pode ser eficiente na conservação do pescado durante o processamento e estocagem, inibindo a degradação dos lipídios pela oxidação. O presente trabalho avaliou os efeitos antioxidantes da vitamina E in vivo e in vitro na qualidade final dos hambúrgueres produzidos com filés de tilápias congelados durante 0, 30, 60 e 90 dias. Foi utilizado um delineamento inteiramente casualizado, com seis tratamentos, em esquema fatorial 3x2, caracterizado pela suplementação de dois níveis de vitamina E nas dietas (100 e 200 mg / kg de ração) e o grupo controle (zero mg/kg de ração) e adição ou não de 100 ppm de vitamina E aos hambúrgueres, com quatro repetições. Os peixes, com peso médio inicial de 184,23 + 1,68g foram alimentados com as dietas experimentais durante 63 dias. Após esse período, foram abatidos e os filés processados em hambúrgueres. Foram avaliados os parâmetros de desempenho, composição centesimal e a oxidação lipídica, determinada pelas substâncias reativas ao ácido tiobarbitúrico (SRATB). Os resultados mostraram que não houve diferença significativa para as variáveis de ganho de peso, conversão alimentar e crescimento específico entre os tratamentos. A composição química variou dentro dos valores encontrados para pescados. O aumento do nível de vitamina E promoveu redução nos valores de SRATB das amostras em todos os intervalos de tempo, e que a adição in vivo da vitamina E protegeu os hambúrgueres da oxidação lipídica de forma mais eficiente do que a adição in vitro, sendo que a interação entre ambas resultou em maior redução nas taxas de oxidação.
Vitamin E is used in diets with the aim of enhancing growth, resistance to stress and pathology, and also fish survival. It can be efficient in fish conservation during processing and frozen storage, inhibiting lipid degradation from oxidation. The present work evaluated the antioxidant effects of vitamin E utilization in vivo and in vitro in the final quality of hamburgers made from tilapia filets during frozen storage over 3 months. A randomized design, in a 3x2 factorial scheme was utilized, which correspond to the two levels of diet vitamin E (100 and 200 mg / kg diet) and the control group (zero mg/kg diet) and addition or not of 100 ppm of vitamin E to the hamburgers, with four repetitions. The fishes, with initial weight 184.23 + 1.68 g, were fed the experimental diets for 63 days, after which they were killed and processed into hamburgers. The performance parameters analyzed were centesimal composition and lipid oxidation, determined by the thiobarbituric acid reactive substances (TBARS). The results showed no significant difference between treatments for weight gain, food conversion or specific growth. The chemical composition varied within the values found for fish. Increased vitamin E levels promoted reduction of TBARS values over all time intervals. This means values suggested that the addition in vivo of tocopherol protected the hamburgers from lipid oxidation more efficiently when compared to in vitro addition, but the interaction between both resulted in higher reduction in rate of oxidation.
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Fogaça, Fabíola Helena dos Santos. "Efeito do tocoferol no desempenho e na estabilidade lipidica da tilápia nilotica (Oreochromis niloticus) /." Jaboticabal : [s.n.], 2006. http://hdl.handle.net/11449/86711.

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Orientador: Léa Silvia Sant'Ana
Banca: Rose Meire Vidotti
Banca: Luiz Edivaldo Pezzato
Resumo: A vitamina E é usada nas dietas com a finalidade de melhorar o crescimento, a resistência ao estresse e a doenças, assim como a sobrevivência de peixes. Também pode ser eficiente na conservação do pescado durante o processamento e estocagem, inibindo a degradação dos lipídios pela oxidação. O presente trabalho avaliou os efeitos antioxidantes da vitamina E "in vivo" e "in vitro" na qualidade final dos hambúrgueres produzidos com filés de tilápias congelados durante 0, 30, 60 e 90 dias. Foi utilizado um delineamento inteiramente casualizado, com seis tratamentos, em esquema fatorial 3x2, caracterizado pela suplementação de dois níveis de vitamina E nas dietas (100 e 200 mg / kg de ração) e o grupo controle (zero mg/kg de ração) e adição ou não de 100 ppm de vitamina E aos hambúrgueres, com quatro repetições. Os peixes, com peso médio inicial de 184,23 + 1,68g foram alimentados com as dietas experimentais durante 63 dias. Após esse período, foram abatidos e os filés processados em hambúrgueres. Foram avaliados os parâmetros de desempenho, composição centesimal e a oxidação lipídica, determinada pelas substâncias reativas ao ácido tiobarbitúrico (SRATB). Os resultados mostraram que não houve diferença significativa para as variáveis de ganho de peso, conversão alimentar e crescimento específico entre os tratamentos. A composição química variou dentro dos valores encontrados para pescados. O aumento do nível de vitamina E promoveu redução nos valores de SRATB das amostras em todos os intervalos de tempo, e que a adição "in vivo" da vitamina E protegeu os hambúrgueres da oxidação lipídica de forma mais eficiente do que a adição "in vitro", sendo que a interação entre ambas resultou em maior redução nas taxas de oxidação.
Abstract: Vitamin E is used in diets with the aim of enhancing growth, resistance to stress and pathology, and also fish survival. It can be efficient in fish conservation during processing and frozen storage, inhibiting lipid degradation from oxidation. The present work evaluated the antioxidant effects of vitamin E utilization in vivo and in vitro in the final quality of hamburgers made from tilapia filets during frozen storage over 3 months. A randomized design, in a 3x2 factorial scheme was utilized, which correspond to the two levels of diet vitamin E (100 and 200 mg / kg diet) and the control group (zero mg/kg diet) and addition or not of 100 ppm of vitamin E to the hamburgers, with four repetitions. The fishes, with initial weight 184.23 + 1.68 g, were fed the experimental diets for 63 days, after which they were killed and processed into hamburgers. The performance parameters analyzed were centesimal composition and lipid oxidation, determined by the thiobarbituric acid reactive substances (TBARS). The results showed no significant difference between treatments for weight gain, food conversion or specific growth. The chemical composition varied within the values found for fish. Increased vitamin E levels promoted reduction of TBARS values over all time intervals. This means values suggested that the addition in vivo of tocopherol protected the hamburgers from lipid oxidation more efficiently when compared to in vitro addition, but the interaction between both resulted in higher reduction in rate of oxidation.
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Brooks, Carly Lynn. "Somatic transgenesis in Nile tilapia (Oreochromis niloticus)." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423462.

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Hussain, Mohammad Gulam. "Genetic manipulation studies in Orechromis niloticus L." Thesis, University of Stirling, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306583.

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Rahman, Md Azizur. "Introduction of novel genes into tilapia (Oreochromis niloticus)." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240630.

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Henao, Cuellar Jose Duban. "Salga, prensagem da tilapia do Nilo(Sarotherodon niloticus)." [s.n.], 1988. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257394.

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Orientadores : Jose Luis Vasconcellos Rocha, Emilio Contreras Guzman
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Mestre em Engenharia Agrícola
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Lui, Tatiane Andressa. "Restrição alimentar para tilápia do Nilo (Oreochromis niloticus)." Universidade Estadual do Oeste do Parana, 2016. http://tede.unioeste.br:8080/tede/handle/tede/1950.

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In order to assess different dietary restrictions for juvenile Nile tilapia (Oreochromis niloticus) which does not promote injury to the fish, was analyzed the following zootechnical parameters; the centesimal composition of whole fish and morphometry of muscle fibers and height of intestinal villi and the economic viability. Have been analyzed 160 fish (3.23 ± 0.07 g), over 20 nylon mesh net cages disposed in a concrete tank with central blower constant aeration system. The experimental methodology was completely randomized with four different treatments and five replications. Treatments consisted of 7: 0 - fed daily; 6: 1 - fed six straight days of a day of feed restriction; 5: 2 - fed five days followed by two days of feed restriction and 1: 1 - fed one day, followed a day of food restriction. It was used commercial feed with 33.70% crude protein, and the fish were fed four times a day to apparent satiation for 60 days. At the end of the experimental period significant differences were observed between the different dietary restrictions (P <0.05) for final weight, weight gain, final length, hepatossomatic index, visceral fat, intestinal quotient, specific growth rate, moisture, lipids, mineral matter and the rate of muscle fibers classes <20 µm and between 20 and 50 micrometers. The height of intestinal villi did not differ (P> 0.05) between treatments. The cost of food and partial net revenue were higher to those fed daily than the others. Therefore, it is concluded that dietary restriction for Nile tilapia in the juvenile stage may cause negative impact on growth performance, the chemical composition and muscle growth, making this practice indeed be uneconomical for commercial production.
Com o intuito de avaliar distintas restrições alimentares para juvenis de tilápia do Nilo (Oreochromis niloticus) que não promova prejuízo ao peixe, analisou-se os parâmetros zootécnicos, composição centesimal do peixe inteiro, morfometria das fibras musculares, altura das vilosidades intestinais e a viabilidade econômica. Foram utilizados 160 peixes (3,23 ± 0,07 g), distribuídos em 20 hapas de malha plástica dispostos em um tanque de concreto com sistema de aeração constante por meio de soprador de ar central. O delineamento experimental foi inteiramente casualizado com quatro tratamentos e cinco repetições. Os tratamentos consistiram em 7:0 alimentados diariamente; 6:1 alimentados seis dias seguidos de um dia de restrição alimentar; 5:2 alimentados cinco dias seguidos de dois dias de restrição alimentar e 1:1 alimentados um dia, seguidos de um dia de restrição alimentar. Foi utilizada ração comercial com 33,70% de proteína bruta, e os peixes foram alimentados quatro vezes ao dia até a saciedade aparente durante 60 dias. Ao final do período experimental foram observadas diferenças significativas entre as distintas restrições alimentares (P<0,05) para peso final, ganho em peso, comprimento final, índice hepatossomático, gordura visceral, quociente intestinal, taxa de crescimento específico, umidade, lipídeos, matéria mineral e na frequência de fibras musculares nas classes <20 µm e entre 20 e 50 µm. A altura da vilosidade intestinal não diferiu (P>0,05) entre os tratamentos. O custo com a alimentação e a receita líquida parcial foram superiores naqueles alimentados diariamente com relação aos demais. Portanto, conclui-se que a restrição alimentar para tilápia do Nilo na fase juvenil influencia negativamente no desempenho produtivo, na composição centesimal e no crescimento muscular, sendo, esta prática inviável economicamente para a produção comercial.
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Brito, Tulio Soares de. "Orégano em dietas para tilápia nilótica (Oreochromis niloticus)." Universidade Federal de Minas Gerais, 2013. http://hdl.handle.net/1843/BUOS-9KWJE4.

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The use of feed additives capable of improve animal performance and is a tool of great interest for animal nutrition. The aim of this study was to evaluate the ability of growth promotion by the inclusion of dry leaves of oregano. 280 male juvenile nile tilapia (Oreochromis niloticus) were used with an initial average weight of 98.75 ± 8.83 g, housed in 28 tanks each with a capacity of 100L for 40 days, consuming increasing levels of oregano (0, 0.025, 0.050, 0.075, 0.100, 0.125 and 0.150%) in the diet. Were evaluated weight gain, feed intake and feed. The digestibility of protein, energy and ether extract were determined by the indirect method with chromic oxide as an inert indicator. Blood was collected from animals for glucose, hematocrit and total protein evaluation. For the morphometric analysis of the intestinal mucosa were collected fragments of approximately 5 cm length of the initial portion of the intestine. Statistical analyzes were performed with the aid of the program SAEG - Analysis System Statistics and Genetics (UFV, 1997) and the treatment means were subjected to regression studies. According to the equations, it was estimated that the inclusions of 0.043, 0.051 or 0.039% can improve by 0.21, 1.04 and 0.52% the digestibility of dry matter, organic matter and energy, respectively. For the other variables no significant effects were observed, allowing to conclude that the evaluated levels of oregano inclusion did not presented any change in animals health.
O uso de aditivos alimentares, capazes de melhorar o desempenho dos animais, é uma ferramenta de grande interesse para a nutrição animal. O objetivo do presente trabalho foi avaliar a capacidade promotora de crescimento da inclusão de folhas secas de orégano. Foram utilizados 280 juvenis machos de tilápia nilótica (Oreochromis niloticus), com peso médio inicial de 98,75 ± 8,83g, alojados em 28 tanques com capacidade de 100L cada, durante 40 dias, consumindo níveis crescentes de orégano (0, 0,025, 0,050, 0,075, 0,100, 0,125 e 0,150%) na ração. Avaliou-se o ganho de peso, consumo e conversão alimentar. Os coeficientes de digestibilidade da proteína, energia e extrato etéreo foram determinados pelo método indireto com óxido de crômico como indicador inerte. Foi coletado sangue dos animais para avaliação de glicose, hematócrito e proteína total. Para a análise de morfometria da mucosa intestinal foram coletados fragmentos de aproximadamente 5 cm de comprimento da porção inicial do intestino. As análises estatísticas foram realizadas com o auxílio do programa SAEG Sistema de Análises Estatísticas e Genéticas (UFV, 1997), sendo as médias dos tratamentos submetidas a estudos de regressão. De acordo com as equações obtidas estimou-se que as inclusões de 0,043, 0,051 ou 0,039% podem melhorar em 0,21, 1,04 e 0,52% a digestibilidade da matéria seca, matéria orgânica e energia, respectivamente. Para as outras variáveis não foram verificados efeitos significantes, permitindo concluir que a inclusão de orégano nos níveis avaliados não prejudica a saúde dos animais.
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Madalla, Nazael. "Novel feed ingredients for Nile tilapia (Oreochromis niloticus L.)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/795.

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Lack of affordable feeds is one of the major constraints facing small-scale fish farmers in Tanzania. This study evaluated the suitability of moringa leaf meal (MLM), cassava leaf meal (CLM) and cassava root meal (CRM) as novel ingredients in Nile tilapia, Oreochromis niloticus diets. Each of the ingredients was processed in an attempt to remove the most significant antinutritional factor. A series of five experiments was conducted in a recirculation system using juvenile O. niloticus. The fish were fed isonitrogenous (30g 100g-1), isolipidic (10g 100g-1) and isoenergetic (18 kJ g-1) diets containing graded levels of the processed ingredients to their apparent appetite but not exceeding 10% of their body weight for a period of 8 weeks. Processing led to the removal of 0.3% of saponin from MLM and 60% and 90% of hydrogen cyanide from CLM and CRM respectively. The contents of other inherent antinutritional factors such as phenols, tannins and phytic acid were little affected. Processed MLM, CLM and CRM had 31.1/29.0/1.5g 100g-1 of crude protein, 5.9/10.2/2.4g 100g-1 of crude fibre and 20.1/19.7/15.8k Jg-1 of gross energy. The content of sulphur amino acids was higher in CLM (0.47%) than in MLM (0.23%). Digestibe protein and digestible energy was higher in MLM (25.71g 100g-1/15.44kJ g-1) than in CLM (12.71g 100-1/9.16kJ g-1). CRM had a digestible energy content of 13.5kJ g-1. Inclusion of either of the leaf meals, even at the lowest level of 15g 100g-1 of total dietary protein, led to a significant reduction in feed intake, growth and feed utilisation. Liver and small intestine did not show any histopathological changes which could be linked to dietary treatment. Conversely, cassava root meal could replace up to 75% of wheat meal in the diet without significantly affecting performance. The performance of leaf meals was marginally improved by a combination of blending and feeding stimulants, whereby a blend containing 1 part MLM and 2 parts CLM could provide up to 20g 100g-1 of dietary protein without significantly reducing performance. Biological and economic performance of practical diets containing 30-50g 100g-1 of dietary protein from moringa and cassava blends (LMB) with feeding stimulants was significantly lower than a fishmeal-meal based diet (FM) but comparable to a soybean meal-based diet (SBM). The suitability of MLM and CLM as novel protein sources in O. niloticus diets will depend on 1) improving reduction/removal of inherent antinutritional factors in MLM and CLM as well as improving digestibility of CLM. On the other hand, the suitability of CRM as a carbohydrate energy source will depend on the availability of cost effective protein sources due to its low protein content.
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Books on the topic "O. niloticus"

1

Watanabe, Wade O. Salinity tolerance of the tilapias Oreochromis aureus, O. niloticus and an O. mossambicus X O. niloticus hybrid. Taipei, Taiwan: Council for Agricultural Planning and Development, 1985.

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Nash, W. J. A bibliography of trochus (Trochus niloticus L.) (Gastropoda: Trochidae). Manila, Philippines: International Center for Living Aquatic Resources Management, 1987.

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Leong, Joyce Samuelu Ah. Report on the search for Trochus niloticus in the Samusu and Amaile reefs. [Samoa]: Ministry of Agriculture and Fisheries, 2008.

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Ramakrishna. Status survey on Trochus niloticus (Linnaeus, 1767) in Andaman and Nicobar Islands. Kolkata: Zoological Survey of India, 2010.

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Anderson, Joseph. Digestible energy and carbohydrates in the nutrition of tilapia: Oreochromis niloticus Linn.). Birmingham: University of Aston. Department of Biological Sciences, 1985.

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Nganda, Gatei. Morphology and biofilm studies of the intestines of the nile tilapia (oreochromis niloticus). Charlottetown: University of Prince Edward Island, 1994.

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Lake Victoria wetlands and the ecology of the Nile Tilapia, Oreochromis niloticus Linné. Rotterdam: A.A. Balkema, 1998.

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Parkinson, Brian J. A report on the potential for the introduction of Trochus (Trochus niloticus) to Tuvalu. Noumea, New Caledonia: The Commission, 1985.

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Pakoa, Kalo. The status of the trochus (Trochus niloticus) resource in Tongatapu lagoon and recommendations for management. Noumea, New Caledonia: Secretariat of the Pacific Community, 2009.

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Gillett, R. D. The transplantation of trochus from Fiji to Tokelau. [Suva, Fiji]: UNDP/OPE Integrated Atoll Development Project, 1986.

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Book chapters on the topic "O. niloticus"

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Gu, Dangen, Yinchang Hu, Hui Wei, Yunjie Zhu, Xidong Mu, Du Luo, Meng Xu, and Yexin Yang. "Nile Tilapia Oreochromis niloticus (L.)." In Biological Invasions and Its Management in China, 77–89. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3427-5_5.

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Mkumbo, O. C., C. Ezekiel, Y. L. Budeba, and I. G. Cowx. "Analysis of Exploitation Patterns for Nile Perch, Lates Niloticus, in Lake Victoria." In Management and Ecology of Lake and Reservoir Fisheries, 84–95. Oxford, UK: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470995679.ch8.

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Adytia Patar, Asysyuura, Jessey Angat, Nordiana Suhada Mohamad Tahiruddin, Farida Zuraina Mohd Yusof, and Wan Rozianoor Mohd Hassan. "Toxicity effects of dimethoate and chlorpyrifos on esterase in tilapia (oreoceromis niloticus)." In Bioresources Technology in Sustainable Agriculture, 123–37. Waretown, NJ: Apple Academic Press, 2017.: Apple Academic Press, 2018. http://dx.doi.org/10.1201/9781315365961-9.

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Elhigzi, Fatin Abdel Razig, Shawkat Ara Haider, and Petter Larsson. "Interactions between Nile tilapia (Oreochromis niloticus) and cladocerans in ponds (Khartoum, Sudan)." In Cladocera as Model Organisms in Biology, 263–72. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0021-2_30.

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Raghunathan, C., C. Sivaperuman, and K. Venkataraman. "Status and Distribution of Trochus niloticus (Linnaeus 1767) in Andaman and Nicobar Islands." In Ecology of Faunal Communities on the Andaman and Nicobar Islands, 85–102. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28335-2_6.

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Wang, Guangming, Lincheng Shen, and Tianjiang Hu. "Kinematic Modeling and Dynamic Analysis of the Long-Based Undulation Fin of Gymnarchus Niloticus." In From Animals to Animats 9, 162–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11840541_14.

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Mohd Sojak, Mohamad Radzi, Mohd Azraai Mohd Razman, Anwar P. P. Abdul Majeed, Rabiu Muazu Musa, Ahmad Shahrizan Abdul Ghani, and Ismed Iskandar. "The Identification of Oreochromis niloticus Feeding Behaviour Through the Integration of Photoelectric Sensor and Logistic Regression Classifier." In Robot Intelligence Technology and Applications, 222–28. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7780-8_18.

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Rahman, Azirur, and Norman Maclean. "Production of Lines of Growth Enhanced Transgenic Tilapia (Oreochromis Niloticus) Expressing a Novel Piscine Growth Hormone Gene." In New Developments in Marine Biotechnology, 19–28. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-5983-9_5.

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Takagi, Y., and J. Yamada. "Effects of Calcium and Phosphate Deficiencies on Bone Metabolism in a Teleost, Tilapia (Oreochromis niloticus): A Histomorphometric Study." In Mechanisms and Phylogeny of Mineralization in Biological Systems, 187–91. Tokyo: Springer Japan, 1991. http://dx.doi.org/10.1007/978-4-431-68132-8_31.

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Wanink, Jan H., and Kees P. C. Goudswaard. "Effects of Nile perch (Lates niloticus) introduction into Lake Victoria, East Africa, on the diet of Pied Kingfishers (Ceryle rudis)." In Aquatic Birds in the Trophic Web of Lakes, 367–76. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1128-7_33.

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Conference papers on the topic "O. niloticus"

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Alexandrescu, Daniela Cristiana. "RESEARCH ON OREOCHROMIS NILOTICUS INCREASING IN ROMANIAN AQUACULTURE." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/51/s20.107.

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de Oliveira Soares Rebouças, LUCAS, JULIANNA Paula do Vale Figueiredo, ANA Cecília Nunes de Mesquita, JOSUE dos Santos Júnior, and PATRICIA de Oliveira Lima. "INFLUÊNCIA DA SALINIDADE NO PERFIL SENSORIAL DA TILÁPIA (Oreochromis niloticus)." In II Congresso Internacional das Ciência Agrárias. Instituto Internacional Despertando Vocações, 2017. http://dx.doi.org/10.31692/2526-7701.iicointerpdvagro.2017.00356.

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Zimermann, Jéssika Darc Fernandes, Rosa Cristina Prestes Dornelles, and Ivo Mottin Demiate. "Colágeno dos Subprodutos do Processamento de Tilápia do Nilo (Oreochromis niloticus)." In Simpósio de Bioquímica e Biotecnologia. Londrina - PR, Brazil: Galoa, 2017. http://dx.doi.org/10.17648/simbbtec-2017-80815.

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"Growth Response of Oreochromis Niloticus Fingerlings to Sun-Dried Maggot Substituted Diets." In Nov. 19-20 2018 Cape Town (South Africa). Eminent Association of Pioneers, 2018. http://dx.doi.org/10.17758/eares4.eap1118452.

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Priambodo, Rizky, Irvan Faizal, Abinawanto, Wibowo Mangunwardoyo, and Anom Bowolaksono. "Transferrin gene cloning and sequencing analysis from Indonesian Nile Tilapia (Oreochromis niloticus)." In INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2015 (ISCPMS 2015): Proceedings of the 1st International Symposium on Current Progress in Mathematics and Sciences. Author(s), 2016. http://dx.doi.org/10.1063/1.4946964.

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R. M., E., E. S., V. N., A. J. C. P., F. A. B. N., and J. C. V. "PADRÕES DE QUALIDADE DE LINGUÍÇA FRESCAL DE CARNE DE TILÁPIA (Oreochromis niloticus)." In IV ENCONTRO NACIONAL DA AGROINDúSTRIA. Galoa, 2018. http://dx.doi.org/10.17648/enag-2018-91324.

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Handayani, Kiki Syaputri, Zahra Novianty, Miftahul Rohmah Saputri, Bambang Irawan, and Agoes Soegianto. "Oxidative stress responses in gills of tilapia (Oreochromis niloticus) at different salinities." In THE 4TH INTERNATIONAL CONFERENCE ON RESEARCH, IMPLEMENTATION, AND EDUCATION OF MATHEMATICS AND SCIENCE (4TH ICRIEMS): Research and Education for Developing Scientific Attitude in Sciences And Mathematics. Author(s), 2017. http://dx.doi.org/10.1063/1.4995198.

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Mousa, M. H. "BRACKISH WATER FOR CULTIVATION OF OREOCHROMIS NILOTICUS WITH SEX REVERSED FEMALE BY DIETHYLSTILBESTEROLE." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/3.1/s12.009.

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Chansue, Nantarika, Tanatporn Tantiveekul, Chayanis Daochai, Thanida Haetrakul, Nitiwadee Keschumras, Sirawich Srisiri, Pichamon Moolthep, Waritha Thosaksith, and Somsri Daochai. "Application of low dose microwave on wound healing in Nile Tilapia (Oreochromis niloticus)." In 2017 10th Biomedical Engineering International Conference (BMEiCON). IEEE, 2017. http://dx.doi.org/10.1109/bmeicon.2017.8229150.

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Pai, Tun-Wen, Yang-Chun Chang, Cing-Han Yang, Ronshan Chen, and Rong-Hwa Chen. "Functional Simple Sequence Repeat (SSR) Biomarkers for Specific Gene Groups of Oreochromis Niloticus." In the 2018 7th International Conference. New York, New York, USA: ACM Press, 2018. http://dx.doi.org/10.1145/3239264.3239278.

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Reports on the topic "O. niloticus"

1

Palmer, Rachel. The Interactive Effect of Temperature and Salinity in the Nile Tilapia (Oreochromis niloticus). Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6816.

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