Genetic parameters for two selection criteria for feed efficiency in rabbits1

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Genetic parameters for two selection criteria for feed efficiency in rabbits.

Improvement of feed efficiency can be achieved by genetic selection directly on feed to BW gain ratio or for alternative traits. In the present study, 2 different traits were explored in the growing rabbit and their heritability and genetic correlations with traits recorded between weaning (30 d) and 63 d of age: i) residual feed intake (RFI), to select animals having low ad libitum feed intake...

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Genomic selection for feed efficiency traits

Introduction Feed costs comprise the majority of variable expenses in beef cattle systems making feed efficiency an important economic consideration within the beef industry (Koch et al ., 1963; Dickerson et al ., 1974) . Aside from the direct economic impact of this trait complex at the individual producer level, the projections of global population growth provide extra pressure for efficient ...

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ژورنال

عنوان ژورنال: Journal of Animal Science

سال: 2013

ISSN: 0021-8812,1525-3163

DOI: 10.2527/jas.2012-6176