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Inbreeding evidence in a traditional channel catfish (Ictalurus punctatus) hatchery in Mexico Electron. J. Biotechnol.
Parra-Bracamonte,Gaspar Manuel; Sifuentes-Rincón,Ana María; Rosa-Reyna,Xochitl Fabiola De la; Arellano-Vera,Williams; Sosa-Reyes,Brenda.
Background: Channel catfish are one of the most important aquaculture species raised for food purposes in Mexico. Two temporal samples were obtained from the largest channel catfish breeding hatchery in Mexico to identify changes in genetic diversity and inbreeding that are promoted by traditional hatchery management. Results: The genetic parameter analysis of 11 microsatellite loci showed no significant change in genetic diversity (p &gt; 0.05). However, a significant heterozygosis deficiency was detected (p < 0.001), and genetic structure analysis indicated moderate differentiation between the temporally divided populations (F ST = 0.08). A moderate level of inbreeding and a slight increase of the inbreeding coefficient from 0.23 to 0.27 were the...
Tipo: Journal article Palavras-chave: Channel catfish; Effective population size; Genetic diversity; Inbreeding.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000600011
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Validation of a methodology for measuring nutrient digestibility and evaluation of commercial feeds for channel catfish Scientia Agricola
Kitagima,Renato Eiji; Fracalossi,Débora Machado.
Channel catfish, a major freshwater aquaculture species in the US, is also farmed in Southern Brazil. However, apparent digestibility coefficients (ADC) of nutrients in commercial feeds available in Brazil for the species are not known. This study aimed at optimizing a methodology for fecal collection and determination of apparent nutrient digestibility for catfish. Pilot trials were carried out to establish gastrointestinal transit, fish density, and time interval between fecal collections. Gastrointestinal transit of dry feed for catfish varied from 11h30 to 10h30 for 100 and 172-g fish, respectively. Average dry weight of feces produced along a six day period by 99-g fish was 0.54 g, regardless of stocking density (10, 15 or 20 fish per 98-L cage; p...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrient availability; Fish nutrition; Siluriform fish; Channel catfish.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500016
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What are the Economic Prospects of Developing Aquaculture in Queensland to Supply the Low Price White Fillet Market? Lessons from the US Channel Catfish Industry AgEcon
Lyster, Thorbjorn.
The farming of channel catfish (Ictalurus punctatus) is the largest (by volume and value) and most successful (in terms of market impact) aquaculture industry in the United States of America. Farmed channel catfish is the most consumed (in terms of volume per capita) fish fillet in the U.S. market. Within Australia, it has long been suggested by researchers and industry that silver perch (Bidyanus bidyanus) and possibly other endemic teraponid species possess similar biological attributes for aquaculture as channel catfish and may have the potential to generate a similar industry. The current teraponid industry in Australia, however, shows very little resemblance to the catfish industry, either in production style or market philosophy. A well established...
Tipo: Working or Discussion Paper Palavras-chave: Aquaculture industry; Channel catfish; Teraponid species; Demand and Price Analysis; Farm Management; Livestock Production/Industries; Q31.
Ano: 2004 URL: http://purl.umn.edu/51410
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