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Showing 1 to 20 of 23 for “"nile tilapia"”.
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Ontogenic Morphology and Enzyme Activities of the Intestinal Tract of the Nile Tilapia, Oreochromis Niloticus
The gross intestinal configuration of the Nile tilapia intestine changed dramatically from a short, straight intestinal tube at hatch (day 0) to a very complex, coiling pattern first attained at 9 weeks post-hatch. During the developmental period, gut length increased from 90% to 410% of body …
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Performance of Nile Tilapia and Yellow Perch Fed Diets Containing Distillers Dried Grain with Solubles and Extruded Diet Characteristics
… these constituents into diets fed to Nile tilapia Oreochromis niloticus and yellow perch Perca flavescens. However, before performing these feeding trials, a literature review was conducted to evaluate the nutritional requirements needed by both species and the nutritional and chemical …
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Characterization of the molecular genetic variation in wild and farmed Nile tilapia Oreochromis niloticus in Ghana for conservation and aquaculture development
The Nile tilapia Oreochromis niloticus is native to Africa and middle East, and is an important source of nutrition for many in sub-Saharan Africa. Understanding the genetic diversity within and differentiation among wild populations can help identify O. niloticus populations that are imperiled and …
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Produção, beneficiamento e distribuição da Tilápia do Nilo produzida em tanque-rede: uma avaliação energética ambiental.
This study includes the analysis of Nile tilapia production, following the Life Cycle Assessment (LCA) methodology. The objective of the thesis was to evaluate the environmental performance in the production of Nile tilapia in different sizes, from nursery, rearing, fattening, processing (in …
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Investigating the potential utilisation of black soldier fly (Hermetia illucens) as an alternative protein source in tilapia and carp feed
… BSF larvae meal was tested in diets for both Nile tilapia (Oreochromis niloticus) and mirror carp (Cyprinus carpio), whereas BSF frass was assessed only in Nile tilapia.<br/>In the first experiment, dietary inclusion of 20% and 40% BSF meal, replacing mainly soybean meal (SBM) and corn gluten …
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Digestibilidade do farelo de urucum com adição de complexo enzimático para Tilápia do Nilo
… complex on the digestibility of bran annatto for Nile tilapia. A digestibility trial was conducted to evaluate the apparent digestibility coefficients of nutrients and digestible energy bran annatto seed (FSU) and the effects of diet supplementation with an enzyme complex containing cellulase, …
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Effects of Host-derived Probiotics on the Growth Performance and Health of Tilapia and Carp
… for well-characterised probiotic strains for tilapia and carp aquaculture, this study investigated the isolation, characterisation, and application of host-derived candidate probiotics from Nile tilapia (<i>Oreochromis niloticus</i>) and mirror carp (<i>Cyprinus carpio</i>), and their …
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Use of PCR Cloning Combined with DNA Barcoding to Identify Fish in a Mixed-Species Product
… mixtures were prepared with known amounts of Nile tilapia (Oreochromis niloticus), Pacific cod (Gadus macrocephalus), and walleye pollock (Gadus chalcogrammus). The fish balls underwent DNA extraction in triplicate, followed by DNA barcoding across the full barcode (655 bp) and SH-E …
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Uso de prebiótico para tilápia-do-nilo durante o período de inversão sexual
… (MOS), during sex reversal in Nile tilapia (Oreochromis niloticus). Sixteen glass aquaria were used with a capacity of 50 liters with water circulation, temperature controlled water and continuous aeration system, 240 animals were used: 15 tilapia larvae per experimental unit, …
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Efeitos do óleo essencial de Elionurus muticus (Spreng.) Kuntze na indução anestésica e no manejo de tilápia do Nilo em diferentes pH da água
… Elionurus muticus (EOEM) as an anesthetic in juvenile Nile tilapia (Oreochromis niloticus) under different water pH conditions. Two experiments were conducted. In Experiment 1, fish (25 g) were exposed to EOEM concentrations ranging from 10 to 600 µL L⁻¹ at pHs 5.5, 7.0, and 8.5 to determine …
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Novel Aquafeed Towards A Sustainable Aquaculture
… of commercially available catfish, salmon, and tilapia fillets in the United States marketplace and three fish nutritional trials to evaluate the impacts of novel aquafeeds on production and health of fish and the food quality of their respective fillets. Selenium with the established health …
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Establishment and Utilization of Tools for Enhancing Foodfish Health
… in striped catfish (Pangasius hypophthalmus) and Nile tilapia (Oreochromis niloticus), two economically important foodfish, by investigating alternative, more cost-effective options to promote fish health. The first two studies established reference intervals for immunology, hematology and plasma …
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Impact of dietary functional yeast additives on growth performance and health of selected key aquaculture species
… on three key aquaculture species, including Nile tilapia (Oreochromis niloticus), mirror carp (Cyprinus carpio), and Atlantic salmon (Salmo salar) under controlled and excellent rearing conditions.<br/>The first trial investigated the impact of varying inclusion levels of autolysed brewer’s …
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Aspectos biológicos ligados à produtividade da pesca nos açudes públicos da área do "Polígono das Secas" - nordeste do Brasil
… the following categories: herbivorous – Congo tilapia; planktophagous Nile tilapia; mudfeeders – beiru and common curimatã; insectivorous – sardine; onivorous – apaiari, shrimps, cangati, common piau; primary carnivorous – pescadas, traíra and tucunarés; secondary carnivorous – piranhas and …
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Enhancing Profitability of Pond Aquaculture in Ghana through Resource Management and Environmental Best Management Practices
… monitoring of water quality and growth of Nile tilapia (Oreochromis niloticus) over two production cycles. Additionally, I administered a baseline survey to 393 (and a follow-up survey to 160) fish farmers. I determined the best model for modelling farmed Nile tilapia growth with …
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Cichlids as a model for the evolution of visual sensitivity
… of in vitro expressed pigments for all seven Nile tilapia cone opsin genes and chart opsin expression across ontogeny. Each gene is found to encode a distinct photopigment. Despite the expression of a limited subset of opsin genes in adults, each opsin was found to be expressed at some point …
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An ecosystem-based approach to balancing cage aquaculture, capture fisheries, and biodiversity conservation in Lake Victoria, Kenya
… catfishes and cyprinids were abundant, while Nile perch and haplochromines were abundant in the open less eutrophic waters. Along the inner gulf-open lake gradient, Nile perch population structure, size at 50% maturity, and feeding patterns differed. There were no significant variations in …
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Extrusion processing of selected fish feed blends containing distillers dried grains with solubles (DDGS)
… rainbow trout (Oncorhynchus mykiss), and Nile Tilapia (Oreochromis niloticus L.). The ingredient blends included combinations of DDGS, soybean meal, fish meal, fish oil, corn starch, whole wheat flour, corn gluten meal, whey, vitamins and minerals, respectively. DDGS levels were adjusted …
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The Presence of Pathogenic Bacteria in Recirculating Aquaculture System Biofilms and their Response to Various Sanitizers
… in 79.2 liter (20 gallon) aquariums stocked with Nile tilapia (Oreochromus niloticus). The tanks were inoculated with a known amount of green fluorescent protein (GFP) modified Escherichia coli and samples were removed on days 1,3, 7 and 15. The modified E. coli were isolated on Luria Broth Agar …
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Understanding the Role of Plant-based Proteins and Extrusion Parameters in Different Fish Feeds
… (WS), but reduced expansion ratio (ER) of Nile tilapia extrudates. It was determined that up to 40% HP-DDG inclusion, in contrast to C-DDGS, had no effect on bulk density (BD) of the rainbow trout diet. Increasing levels of HP-DDG did not change ER of these products. Inclusion of 20% …
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