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Accuracy of BLUP breeding values in a factorial mating design with mixed families and marker-based parentage assignment in rainbow trout Oncorhynchus mykiss ArchiMer
Haffray, Pierrick; Enez, Florian; Bugeon, Jerome; Chapuis, Herve; Dupont-nivet, Mathilde; Chatain, Beatrice; Vandeputte, Marc.
Marker-based parentage assignment provides the opportunity to investigate factors of efficiency for mixed-family designs and factorial mating. In such designs, family size is both uncontrolled and small, which may be thought to limit the accuracy of estimated breeding values (EBVs). The objective of this work was to estimate the accuracy of EBVs of growth and quality traits in a large factorial mating design and in commercial breeding conditions. An expected six hundred full-sib families of rainbow trout Oncorhynchus mykiss (2042 fish in total) were produced by ten factorial matings of six dams with ten sires. Fish were phenotyped for body weight, carcass yield, fillet yield, fillet fat content and fillet colour, and family information was recovered using...
Tipo: Text Palavras-chave: Aquaculture; Salmonids; DNA parentage assignment; Sib selection; EBV accuracy.
Ano: 2018 URL:
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