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| Haffray, Pierrick; Bugeon, Jerome; Pincent, Cedric; Chapuis, Herve; Mazeiraud, Emmanuel; Rossignol, Marie-noelle; Chatain, Beatrice; Vandeputte, Marc; Dupont-nivet, Mathilde. |
| Genetic parameters of production traits (growth, carcass yield, fillet yield) and bony tissues (head and vertebral axis) were estimated for large all-female rainbow trout Oncorhynchus mykiss reared in freshwater. Genetic parameters were estimated using REML at 16 months of age (1636 g) on 1962 DNA-assigned progenies from a partial factorial mating design with 60 dams and 100 sex-reversed sires. Most traits presented medium to high heritability (0.37 to 0.54). A high genetic correlation (r(A)=0.97) was found between fillet yield and headless gutted carcass yield (or HGCarc%). Due to its higher heritability and high genetic correlation with fillet yield, selection on HGCarc% should result in a 50% increase in selection efficiency on fillet yield by reducing... |
| Tipo: Text |
Palavras-chave: Resource allocation; Fillet yield; Head; Salmonids; Aquaculture; Selective breeding. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00109/22042/19801.pdf |
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