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Genetic parameters and effect of selection for body weight in lines of mink (Neovison vison) on ad libitum and restricted feeding

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Selection was performed for high November weight on ad libitum (AL) and restricted feeding (RF) in mink in two generations. A farm fed line (FF) was maintained as a control. The estimates of heritability for November weight were large (0.62, 0.52, and 0.73 in males and 0.68, 0.51, and 0.60 in females in the FF-, AL-, and RF-line). The results indicate that selection on AL feeding increased appetite and thereby improved feed conversion ratio while selection on RF improved feed utilization. Furthermore, the results suggest that selection for August weight produces lean mink while selection for November weight produces fat mink.
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Keywords: Genetic correlation; growth; heritability; mink; selection

Document Type: Research Article

Affiliations: 1: Department of Molecular Biology and Genetics,Faculty of Science and Technology, Aarhus University, PO Box 50Tjele,8830, Denmark 2: Department of Animal Science,Faculty of Science and Technology, Aarhus University, PO Box 50Tjele,8830, Denmark 3: Kopenhagen Consultant, Agro Food Park 15Aarhus N,8200, Denmark

Publication date: 2012-03-01

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