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Dissertations / Theses on the topic 'Fishes – Barbados – Feeding and feeds'

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Published: 4 June 2021
Last updated: 4 February 2022

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1

Furnell, Donald James. "The effect of feeding frequency on the respiratory metabolism of sablefish (Anoplopoma fimbria)." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27302.

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The three components of the aerobic respiratory metabolism of sablefish, digestion (SDA), activity, and standard metabolism, were examined separately and together as dependent variables responding to the independent variable, feeding frequency. All fish were similar in size and held within a temperature range of 8.5 - 9.5 C on a 12 hr photoperiod. Fish were studied in both 4000 L mass respirometers equipped with activity meters and in a tunnel respirometer. Identical meals were given every 4, 7, and 14 days. A fourth series of starved fish served as controls. In the mass respirometers, oxygen
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2

Babane, Siviwe Elvis. "Towards understanding the effect of size variation on the aggressive and feeding behaviours ofjuvenile dusky kob Argyrosomus japonicus (Pisces: Sciaenidae)." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/59592.

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Many studies have been conducted on the effect of size-grading in other fish species. However, there is a paucity of scientific information on the effects of size variation on cannibalism of juvenile dusky kob. Thus, a study focusing on the effect of size variation on juvenile dusky kob aggressive and feeding (browsing) behaviours was conducted. Three separate groups of hatchery-reared juvenile dusky kob of were obtained from Oceanwise (Pty) Ltd for use in a series of three experimental trials. In all trials, juvenile fish of the same age were size-graded and the COV-value was used to determin
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3

Browman, Howard I. "Feeding behaviour in fry of Atlantic salmon, Salmo salar L." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63129.

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4

Wong, Ka-hei, and 黃家禧. "Novel function of spexin as a satiety factor in feeding control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/207994.

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Spexin (SPX), also called neuropeptide Q (NPQ), is a novel neuropeptide discovered recently using the bioinformatic approach. Except for mammals, SPX has not been reported in lower vertebrates including fish and amphibians. Following its discovery, the biological functions of this peptide in both higher and lower vertebrates are still largely unknown. To examine the structure and functions of SPX in fish model, molecular cloning of goldfish SPX has been performed and found to be highly comparable to its mammalian counterparts. In goldfish, broad expression of SPX transcripts has been found
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5

Johnston, Gavin. "Effect of feeding regimen, temperature and stocking density on growth and survival of juvenile clownfish (Amphiprion percula)." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1005118.

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In aquaculture, a thorough knowledge of the specific environmental requirements of a species is needed in order to maximize growth rate and survival. There is a paucity of data regarding the fundamental environmental requirements for the ongrowing phase of clownfish juveniles. This prompted the design of three experiments to determine the best feeding regimen, temperature and stocking density that maximize growth and survival of Amphiprion percula. Ration size and feeding frequency are important factors for optimizing fish growth during the juvenile grow-out phase. A factorial growth trial was
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6

Thomson, Douglas Edward. "Determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture cleaning wastes." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26649.

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This research reports on the determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture, tank cleaning wastes. Flocculant particle settling curves (Type II) were developed from settling column analysis of cleaning wastes from 11-311 gram Rainbow trout fed a moist pellet diet (Oregon Moist Pellet ®). Four feed pellet sizes were investigated: 3/32, 1/8, 5/32 and 3/16 inch. Overall non-filterable residue removal curves and individual particle settling velocity distribution curves, derived from the Type II settling cu
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7

Deguara, Simeon. "Effect of supplementary enzymes on the growth and feed utilisation of gilthead sea bream, Sparus aurata L." Thesis, University of Stirling, 1998. http://hdl.handle.net/1893/21843.

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A series of five experiments were carried out to determine the effect of supplementary enzymes on growth performance and feed utilisation of juvenile gilthead sea bream, Sparus aurata, fed diets in which soybean meal (S8M) partially replaced fish meal (FM). In the first of these experiments the addition of cocktails containing 1 g/kg low pH active protease and 1 glkg a-galactosidase or 1 glkg high pH active protease and ] glkg a.-galactosidase to a 320 glkg SBM, 260 glkg FM pressed diet were both found to significantly (P<0.05) improve performance of fish fed these diets compared to fish fed t
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8

Mzozo, Ziyanda. "Aspects of the feeding biology of the copepod Pseudodiaptomus hessei (Copepoda: Calanoida) under culture conditions." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/4727.

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This study aimed to investigate the feeding behaviour of the calanoid copepod, Pseudodiaptomus hessei, particularly whether it prefers to feed on a planktonic or benthic food source. The effect of different microalgae species on the feeding preference, ingestion, and gut evacuation rate were investigated. Two microalgae species (Isochrysis galbana and Tetraselmis suecica) were used, to test gut fullness and gut evacuation of P. hessei. The copepods were starved for 6 h and allowed to feed on monalgae diets, I .galbana and T. suecica, and a 1:1 binary diet mixture of T. suecica and I. galbana.
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9

Andrade-Salas, Obdulio. "Feeding and digestion in the ectoparasitic copepod Lepeophtheirus salmonis (Kroyer, 1837)." Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/3266.

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A study has been carried out to investigate some aspects of the feeding and digestion of the parasitic copepod Lepeophtheirus salmonis (Kreyer, 1837), a serious pathogen of wild and farmed marine salmonids. The alimentary canal consists of a cuticularised foregut and hindgut and a midgut, the latter comprising most of the length of the alimentary canal. It consisted of an anterior diverticulum, and anterior midgut, mid midgut and posterior midgut. All the midgut is lined in the luminal side with a monolayer of digestive epithelium. The latter is supported by a porous basal membrane. Mesenterie
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10

Bundit, Jatuporn. "The nutrition and feeding of a native Thai species, the marble goby (Oxyeleotris marmoratus), involving on-farm and experimental studies." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/256.

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In Thailand, culture and production of a high value freshwater fish, the marble goby, is dependant upon farm-made feeds using marine and freshwater trash fish as primary ingredients. However, there is lack of nutritional research regarding the use of such farm-made feeds and their impacts on the nutritional status, growth and health of marble goby. The aims of the present study were to evaluate the effects of farm- made feeds on slaughter indices, fish lipid classes and fatty acid profiles, nutrient composition and digestibility. In addition it was intended to improve on-farm feed quality for
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11

Fagbenro, Oyedapo Adewale. "Studies on the use of fermented fish silage in diets for juvenile tilapia (Oreochromis niloticus) and catfish (Clarias gariepinus)." Thesis, University of Stirling, 1994. http://hdl.handle.net/1893/1924.

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Fermented silage was prepared from a mixture of minced tiiapias (Oreochromis spp. ), different carbohydrate substrates (molasses, corn flour, tapioca flour) and Lactobacillus plantarum as inoculum, incubated anaerobically for 30 days at 5°-35°C. The pH and protein solubilization were temperature-dependent, and the source of carbohydrate substrate did not affect non-protein nitrogen (NPN) content or proximate composition of tilapla silage. During storage at 30°C for 180 days, NPN content increased and there was 8-11% loss of tryptophan. Moist diets containing tilapla silage (stored up to 60 day
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12

Maart, Brenton Ashley. "The biotechnology of effluent-grown Spirulina, and application in aquaculture nutrition." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1004111.

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The biotechnology of production and utilisation of the cyanobacterium Spirulina has been well documented. Research has centred mainly on application in human and animal nutrition, and has been motivated by the high protein, vitamin, fatty acid and growth factor contents. The main obstacle in realising the full potential of this feed source has been the high production costs associated with its mass culture in defined media. The observation of blooms of Spirulina in tannery effluent evaporation ponds in Wellington, South Africa, prompted this investigation into the harvesting, and nutritional a
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13

Walsh, Mark Gordon. "Evaluation of dietary carbohydrate utilization by captive sablefish (Anoplopoma fimbria)." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30429.

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Carbohydrates have variable digestibilities and metabolizable energy values in carnivorous fish. Simple sugars are generally more digestible than complex polysaccharides, and low levels of dietary carbohydrate may contribute more metabolizable energy than high levels. Two experiments were conducted to study the effects of dietary level and processing treatment of wheat starch on the digestibility of diets fed to sablefish (Anoplopoma fimbria), in different regions of the digestive tract. Moreover, an experiment was undertaken to determine if the dietary concentration of an indigestible externa
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14

WANJALA, BENNY SIMBA. "THE RELATIONSHIP OF MOVEMENT TO FEEDING OF LARGEMOUTH BASS, MICROPTERUS SALMOIDES (LACEPEDE 1802) IN ALAMO LAKE, ARIZONA (TELEMETRY, TRACKING, TAGGING)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188020.

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A study of the feeding and movement patterns of largemouth bass in Alamo Lake, Arizona, using stomach analysis, ultra-sonic telemetry and echo-location revealed that feeding is an important determinant of the behavior of individuals and of their composition. The diurnal foraging activity showed a circadian rhythm associated with dawn, dusk, and mobility of prey. The size and type of prey consumed was largely influenced by the size and hunger state of the predator and by the prevailing environmental conditions. All sizes of bass fed mostly on shad, but the quantities consumed were influenced by
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15

Hossain, M. A. "Nutritional evaluation of some Bangladeshi oilseed by-products as dietary protein sources for common carp (Cyprinus carpio L)." Thesis, University of Stirling, 1988. http://hdl.handle.net/1893/1803.

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The nutritional suitability of some Bangladeshi oilseed by-products (mustard, Brassica juncea; linseed, Linum usitatissimum; sesame, Sesamum indicum) as fish meal substitutes in carp diets was investigated. These protein sources were shown to cause depressed growth and feed efficiency when substituting 25% or more of the fish meal protein in semi-purified diets. However, the use of these oilseed meals in combination was found to be more effective than that of single sources. Supplementation of plant protein diets with crystalline EAA improved their nutritive value. Growth performance was bette
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16

Mo, Wing Yin. "Food wastes as feeds incorporated with Chinese herbs and prebiotic fibers on growth and non-specific immunity of grass carp, bighead, mud carp and Nile tilapia." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/91.

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Food waste accounts for about 1/3 of the municipal waste generated in Hong Kong. Using food waste as major ingredients to produce fish feed pellets could ease part of the disposal pressure on the existing landfill sites. The present study focused on the use of food wastes and feed supplements (prebiotic fibres and Chinese herbs) for rearing freshwater fish (grass carp, bighead, mud carp and Nile tilapia) in Hong Kong. Two isonitrogenous formulations, Food Waste Diet A (FWA), consisted of 53% cereal, 10% fruit and vegetables, 8% bone meal, 4% other food waste, 10% fishmeal, 15% corn meal and F
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17

Warrick, Douglas Robert. "Prey flight behaviors in response to wading bird disturbances and their influence on foraging strategy of Great Blue Herons (Ardea herodias)." Thesis, Thesis (M.S.)--University of Oregon, 1992, 1992. http://hdl.handle.net/1794/9891.

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Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 89-91).<br>A geometric model using idealized prey behaviors in reaction to wading bird disturbances was developed to hypothesize how wading bird foraging strategy might most efficiently counter those behaviors. The model suggests that for prey responding to wading bird disturbances with flight response distance strongly negatively correlated to their distance from the point of disturbance, wading birds could employ disturbance facilitated social foraging strategy, thereby increasing indi
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18

Cashman, Michael Robert 1953. "Distribution and feeding interactions of the threadfin shad and juvenile gamefish in Patagonia Lake." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276658.

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Distribution, diet, and food availability for young-of-the-year (YOY) largemouth bass (Micropeterus salmoides), YOY bluegill (lepomis macrochirus) and threadfin shad (Dorosoma petenense) were studied to reveal any potential interactions in Patagonia Lake, a 170 ha (265 acre) recreational impoundment in Santa Cruz County, Arizona. Threadfin shad, a forage species, were stocked to enhance the growth of bass. As shad became abundant, limnetic zooplankton declined, reducing the primary food supply of the YOY game fish. Diet analysis showed very little food overlap between YOY gamefish and threadfi
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19

Kurtenbach, James Peter. "THE INABILITY OF LARGEMOUTH BASS TO RECOGNIZE PREY TOO LARGE TO SWALLOW." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275263.

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20

Tompkins, Arlene Marie. "Interspecific interactions affecting the foraging behavior of chum salmon fry (Oncorhynchus keta)." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/32177.

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Interactions between fish utilizing nearshore habitats of the Fraser River estuary were investigated by field observations and laboratory experiments. Chum salmon fry (Oncorhynchus keta) were the most abundant salmonid captured between April and June. Non-salmonid species captured included: threespine stickleback (Gasterosteus aculeatus), prickly sculpin (Coitus asper), and peamouth chub (Mylocheilus caurinus). Potential predators included: prickly sculpin, and northern squawfish (Ptychocheilus oregonensis), but few had been feeding on fish. Chum fry fed predominantly on surface insects but th
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21

Williams, Philip Mark. "Feeding behaviour of Lumbriculus variegatus as an ecological indicator of in situ sediment contamination." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/38.

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Previous studies have demonstrated that the feeding behaviour of Lumbriculus variegatus may be significantly inhibited during exposure to toxic substances. The potential use of an in situ sediment bioassay, using L.variegatus post-exposure feeding inhibition as an endpoint, was investigated. The bioassay consisted of exposing animals in the field for a six-day exposure period and feeding rates were measured immediately afterwards over a twenty-four hour post-exposure period. The bioassay methodology developed in the laboratory produced a consistent baseline response that was reliable and repea
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22

Corner, Richard Anthony. "Implications for the environment of using adaptive feeding systems in the cage culture of Atlantic salmon." Thesis, University of Stirling, 2004. http://hdl.handle.net/1893/26835.

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The use of adaptive feeding systems to deliver feed remotely to Atlantic salmon (Salmo salar) cages has the potential to improve the localised environment through a reduction in particulate waste. This can be achieved through improved growth and lower Feed Conversion Ratio (FCR). The aim of this project was to assess whether adaptive feeding systems confer any environmental benefit at salmon farms through by comparing two fish farm sites, one that uses a Computer Aided System (CAS) adaptive feeding system (AKVAsmart UK limited, Inverness, Scotland) (Portavaide fish farm) and one using hand fee
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23

Rocha, Mariucha Karina Honório Ribeiro [UNESP]. "Fósforo disponível na mineralização óssea de alevinos da Tilápia do Nilo." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/92402.

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Made available in DSpace on 2014-06-11T19:26:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-01Bitstream added on 2014-06-13T19:53:53Z : No. of bitstreams: 1 rocha_mkhr_me_botfmvz.pdf: 206056 bytes, checksum: b4220d7b33a179c4a5950580e30d0d86 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>Os objetivos desta pesquisa foram avaliar a quantidade de fósforo disponível presente em rações experimentais e por meio delas determinar a exigência do mineral para adequada mineralização óssea de alevinos da tilápia do
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24

Cheng, Zhang. "Use of food waste feeds for culturing low trophic level fish (grass carp, bighead carp and mud carp): persistent toxic substances." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/76.

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This study aimed at using different types of food wastes as major sources of protein to replace the fish meal used in fish feeds to produce quality fish. The major objectives were to (1) investigate the variations of metalloid/metals, polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in the fish ponds (pond mud and water), and food wastes used as fish feeds; (2) analyze bioaccumulation and biomagnification of pollutants in the food chains; and (3) evaluate the potential health risks of exposure (to these pollutants) via dietary intake of fish fed with food waste feed
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25

Metochis, Christoforos P. "The effect of low marine ingredient feeds on the growth performance, body composition and health status of Atlantic salmon (Salmo salar)." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21911.

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Fish meals (FM) and fish oils (FO) are used extensively as the main protein and lipid sources respectively in industrially compounded salmon feeds, mainly due to their excellent nutritional properties. Nevertheless, several reasons dictate the utilisation of sustainable alternative protein and lipid sources and the subsequent reduction in the reliance on fishery-products in aquafeeds. Soy protein concentrate (SPC) is a very promising alternative to FM Hence, the main objective of the present thesis was to investigate the effects of the increased substitution of FM withSPC, lysine and methionin
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26

Arumugam, Phillip T. "An experimental approach to golden perch (Macquaria ambigua) fry-zooplankton interactions in fry rearing ponds, south-eastern Australia /." Title page, contents and introduction only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09pha793.pdf.

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27

Hajizadeh, Kapateh Ali. "Effect of dietary lipid sources on the reproductive performance of Nile tilapia Oreochromis niloticus." Thesis, University of Stirling, 2009. http://hdl.handle.net/1893/2023.

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Traditionally, fish oil (FO) has been used extensively in aquafeeds. The stagnation in global fish oil production coupled with an increased demand for its use in aquaculture feeds, especially salmonid feeds, has greatly inflated fish oil prices. Therefore, in order to sustain the rapid growth of the tilapia industry, the dependence on these commodities in feeds should be reduced through use of cheaper and more sustainable sources of dietary lipids, such as palm oil. This study therefore investigated several, previously poorly understood, effects of palm oil on reproductive performance of the c
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28

Kennedy, Sean Robert. "Bioactive fatty acids as dietary supplements for farmed fish : effects on growth performance, lipid metabolism, gene expression and immune parameters." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/389.

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Current feed formulations within the aquaculture industry have tended to rely on high dietary lipid thus offsetting relatively expensive protein as a source of energy. In this way, protein can be ‘spared’ for synthesis of new tissue and the high lipid content can also fulfil both fish and consumer essential fatty acid (EFA) requirements. However, the main disadvantage of feeding high lipid levels to farmed fish is a surplus of fat deposition in the flesh and other important tissues, which can detrimentally impact on quality characteristics central to the human consumer. However, based on previ
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Ali, Md Zulfikar. "Dietary protein and energy interactions in African catfish Clarias gariepinus (Burchell, 1822)." Thesis, University of Stirling, 2001. http://hdl.handle.net/1893/64.

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In order to investigate the interactions of dietary protein and energy and their utilisation by African catfish, Clarias gariepinus (Burchell, 1822) (12.43 ± 0.05 g), a series of four nutritional experiments (triplicate groups of 20 fish per 30-L tank at 28 ± 1°C, for 8 weeks) were carried out using fish meal based diets. Optimum dietary protein to energy ratio (P/E ratio) and optimum lipid to carbohydrate ratio (L/CHO ratio) were investigated. Based on optimised dietary P/E ratio and L/CHO ratio, optimum feeding regime and compensatory growth were also investigated in this species. In the exp
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Gonçalves, André Fernando Nascimento [UNESP]. "Desempenho produtivo e respostas fisiológicas de juvenis de cachara (Pseudoplatystoma reticulatum) alimentados com diferentes níveis de proteína e carboidrato." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/116020.

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Made available in DSpace on 2015-03-03T11:52:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-03-12Bitstream added on 2015-03-03T12:06:55Z : No. of bitstreams: 1 000809753.pdf: 636196 bytes, checksum: 431eaf1039593922667938e3e9f16f39 (MD5)<br>A adequada utilização de carboidratos nas dietas de peixes carnívoros pode reduzir a utilização da fração proteica da dieta para fins energéticos, aumentando sua utilização para o crescimento, num processo conhecido como protein sparing. A anatomia e histologia do sistema digestório dos surubins demonstram que os mesmos possuem particularidades
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Gonçalves, André Fernando Nascimento. "Desempenho produtivo e respostas fisiológicas de juvenis de cachara (Pseudoplatystoma reticulatum) alimentados com diferentes níveis de proteína e carboidrato /." Dracena, 2014. http://hdl.handle.net/11449/116020.

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Orientador: Leonardo Susumu Takahashi<br>Banca: Urbano dos Santos Ruiz<br>Banca: João Batista Kochenborger Fernandes<br>Resumo: A adequada utilização de carboidratos nas dietas de peixes carnívoros pode reduzir a utilização da fração proteica da dieta para fins energéticos, aumentando sua utilização para o crescimento, num processo conhecido como "protein sparing". A anatomia e histologia do sistema digestório dos surubins demonstram que os mesmos possuem particularidades próximas a de onívoros que poderiam ajudar no aproveitamento de carboidratos da dieta. O metabolismo de carboidratos nos pe
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Rocha, Mariucha Karina Honório Ribeiro 1983. "Fósforo disponível na mineralização óssea de alevinos da Tilápia do Nilo /." Botucatu : [s.n.], 2012. http://hdl.handle.net/11449/92402.

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Orientador: Luiz Edivaldo Pezzato<br>Coorientador: Edma Miranda de Carvalho<br>Banca: Hamilton Hisano<br>Banca: Vânia Vasconcelos<br>Resumo: Os objetivos desta pesquisa foram avaliar a quantidade de fósforo disponível presente em rações experimentais e por meio delas determinar a exigência do mineral para adequada mineralização óssea de alevinos da tilápia do Nilo. Foram formuladas quatro dietas para conter níveis de 2,0; 4,0 e 6,0g kg-1 de fósforo disponível utilizando-se fosfato bicálcico e uma dieta sem suplementação (1,5g kg-1). Todas acrescidas de 1,0g kg-1 de Cr2O3. Para a determinação d
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Krome, Carsten Alexander. "Studies on the suitability of Jatropha curcas kernel meal as an alternative protein source in diets for carp (Cyprinus carpio) and tilapia (Oreochromis niloticus)." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21265.

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Aquaculture production is increasing annualy and wild fisheries for fishmeal production remain stagnant. As a consequence, extensive research has been deployed to reduce dietary fishmeal inclusion in feeds of farmed species. Usage of alternative protein sources derived from plants continues to increase with the most popular sources being oilseeds, legumes and cereal grains. The downside of these sources is that most of them could directly be used for human consumption arising legitimate criticism from voices referring to countries where protein shortages lead to malnutrition among the populati
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Wallace, Janielle L. "Potential of exogenous enzymes in low fish meal diets to improve nutrient digestibility and sustainability of farmed tilapia in Thailand." Thesis, University of Stirling, 2015. http://hdl.handle.net/1893/24004.

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Intensive and semi-intensive aquaculture systems are dependent on nutrient input either in the form of supplemental or complete feeds. Most complete diets still include high fish meal (FM) levels (≥10%). However, as the industry attempts to reduce its reliance on FM, feeds must now be formulated with much lower levels especially for omnivorous species such as tilapia. By 2015, mean FM inclusion in tilapia diets was projected to fall below 3% and be further reduced to 1% by 2020. In the global context of competition for crops, finding suitable plant-based replacers for FM and meeting the increa
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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 con
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Pratoomyot, Jarunan. "Investigating alternative raw materials and diet formulations on growth performance, lipid metabolism and gene expression in Atlantic salmon (Salmo salar L.)." Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2408.

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Fish meal (FM) and fish oil (FO) have traditionally been central in aquaculture feed formulation but the finite global supply situation limiting future use along with issues of contaminant levels in these feed ingredients have become critical issues. The objectives of the present study were to investigate alternative feed ingredients as substitutes for both FM and FO in feeds for Atlantic salmon (Salmo salar) to ensure optimal growth, feed efficiency and health of the fish as well as maintaining the nutritional quality of the fish product to the human consumer, especially the levels of n-3 hig
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Adamidou, Styliani. "Effect of extrusion on the nutritional value of peas (Pisum sativum), chickpeas (Cicer arietinum) and faba beans (Vicia faba) and inclusion in feeds for European seabass (Dicentrarchus labrax) and gilthead seabream (Sparus aurata)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/615.

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The current general economic and food crises have generated an unsettled future for food and feed production and prices in general. Increasing demand, prices and fluctuations in supply in world markets for fishmeal, fish oil, soybean meal, maize and wheat meal emphasize the need to reduce the dependence of the fish feed industry on these ingredients by increasing choices among a wider range of raw materials. Legume seed such as peas, chickpeas and faba beans are promising ingredients for aquafeeds due to their high protein compared to cereals but also for their energy content. The objective of
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Devic, Emilie D. P. "Assessing insect-based products as feed ingredients for aquaculture." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24370.

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Research has been actively looking for alternative feed ingredients to reduce the reliance of the aquafeed industry on marine ingredients, namely fish meal (FM) and fish oil (FO). In this context, insects, in particular housefly (Musca domestica) and black soldier fly (BSF, Hermetia illucens) larvae, have been identified as promising candidates. Although a global insect farming industry is emerging, it is for now constrained by regulatory and technical bottlenecks that raise the question ‘where and how insect-based products could be integrated into aquaculture’. The literature indicated a high
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Agbo, Nelson W. "Oilseed meals as dietary protein sources for juvenile Nile tilapia (Oreochromis niloticus L.)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/984.

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One of the major problems facing aquaculture in Ghana is the non-availability of quality and affordable fish feeds. The present study investigated the nutritional suitability and cost-effectiveness of some Ghanaian oilseed by-products, soybean meal (Glycine spp), cottonseed meal (Gossypium spp), groundnut cake (Arachis hypogaea L.) and groundnut husk, as alternative protein sources to fishmeal (FM) in the diet of Nile tilapia (Oreochromis niloticus L.). The oilseed meals were used individually, as mixtures, as mixtures enriched with methionine and mixtures detoxified by heat processing (autocl
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Karalazos, Vasileios. "Sustainable alternatives to fish meal and fish oil in fish nutrition : effects on growth, tissue fatty acid composition and lipid metabolism." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/220.

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Traditionally, fish meal (FM) and fish oil (FO) have been used extensively in aquafeeds, mainly due to their excellent nutritional properties. However, various reasons dictate the use of sustainable alternatives and the reduction of the dependence on these commodities in fish feeds. Hence, the aim of the present thesis was to investigate the effects of the replacement of FM and FO with two vegetable oils (VO) and an oilseed meal on the growth performance, feed utilization, nutrient and fatty acids (FA) digestibility and tissue FA composition and metabolism in three commercially important Europ
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"Studies on the effects of dietary composition and ration on the growth of oreochromis mossambicus in freshwater and seawater: a bioenergetic approach." Chinese University of Hong Kong, 1989. http://library.cuhk.edu.hk/record=b5886149.

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Kang, Hsu-Ya. "Yeast from papaya processing wastes as aquaculture feed supplement." Thesis, 2007. http://hdl.handle.net/10125/20422.

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Venter, Jacobus Daniel. "Voeding van die Suid-Afrikaanse maasbanker : Trachurus trachurus Linnaeus." Thesis, 2014. http://hdl.handle.net/10210/8930.

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Hlophe, Samkelisiwe Nosipho. "The feeding and growth of Tilapia Rendalli in relation to its aquaculture potential." Thesis, 2012. http://hdl.handle.net/10386/771.

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Thesis (M.Sc. (Aquaculture)) -- University of Limpopo, 2012<br>The feeding habits of a macrophagous fish, Tilapia rendalli, were investigated at an oligotrophic dam that has no macrophytes, Flag Boshielo Dam. This dam supports a significant population of the macrophagous, Tilapia rendalli. The diet of T. rendalli was investigated by examining the frequency of occurrence of different food items in the stomach of the fish over a period of twelve months. A size related dietary shift was evident. The diet of juvenile fish (<5 cm) was dominated by zooplankton and the diet of adult fish (>15 cm) was
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Onal, Umur. "Development of artificial diets for delivery of water-soluble nutrients to altricial fish larvae." Thesis, 2002. http://hdl.handle.net/1957/30807.

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In the present study, the potential of low-melting point lipids, namely methyl palmitate (MP) and menhaden stearine (MS), were studied for delivery of water-soluble materials to fish larvae. Addition of the solid emulsifier, sorbitan monopalmitate (SMP) resulted in higher RE compared to the liquid emulsifier sorbitan sesquioleate (SSO). Additions of SMP were found to have a positive effect on the stability of lipid spray beads (LSB) at concentrations >10% (w/w) of lipid. LSB were shown to retain riboflavin with the highest RE when the lipid matrix was composed of a mixture of MP+10% SMP+1O% et
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"Evaluation of bromophenols in Hong Kong seafood and enhancement of bromophenol content in an aquacultured fish (sparus sarba)." 2002. http://library.cuhk.edu.hk/record=b5891228.

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Ma Wing-chi, Joyce.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2002.<br>Includes bibliographical references (leaves 131-148).<br>Abstracts in English and Chinese.<br>Abstract (in English) --- p.i<br>Abstract (in Chinese) --- p.iv<br>Acknowledgement --- p.vi<br>Contents --- p.viii<br>Abbreviation --- p.xii<br>List of Tables --- p.xiii<br>List of Figures --- p.xv<br>Chapter 1. --- Introduction --- p.1<br>Chapter 2. --- Literature review --- p.5<br>Chapter 2.1 --- Fisheries in Hong Kong --- p.5<br>Chapter 2.2 --- Flavor of seafood --- p.6<br>Chapter 2.2.1 --- Lipid-derived v
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"Die gebruik van die Sjinese Graskarp (Tenopharyngodon idella (Val.) in die beheer van die onderwatermakrofiet Potamogeton pectinatus L. in Germistonmeer." Thesis, 2015. http://hdl.handle.net/10210/14585.

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