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publication name A genetic analysis of litter traits in Bouscat and Giza White rabbits - 1987
Authors Khalil M.H., Owen J.B., Afifi E.A.
year 1987
keywords Bouscat and Giza White rabbits, litter traits, heritability, genetic and phenotypic correlations
journal Animal Production, Britain. Top ten most cited Journals Ranked by Impact from website (Impact 1981-2006):
volume 45
issue Not Available
pages 123-134
publisher British Society of Animal Science
Local/International International
Paper Link http://journals.cambridge.org/action/displayAbstract?aid=7383084
Full paper download
Supplementary materials Not Available
Abstract

An analysis of doe productivity traits was carried out on 884 litter records including 52 sires and 210 daughters (paternal half sisters) of Bauscat (B) and Giza White (G) rabbits. Traits examined included litter size and weight at birth and at weaning, pre-weaning mortality and mean weight of young at weaning. Year-of-kindling affected most litter traits hut no pattern of parity effects on litter size and pre-weaning mortality was observed. Litter weight and mean weight of young at weaning generally increased linearly as parity advanced. Litter size and weight and mean weight of young tended to increase as month of kindling advanced from October to March, and to decrease again during April and May. Pre-weaning mortality decreased as month of kindling advanced up to March and increased thereafter during April and May. The sire of the doe affected all litter traits studied, with the exception of litter size at birth and pre-weaning mortality in the B breed. Estimates of heritability for most of the litter traits were moderate or high. Genetic and phenotypic correlations among litter size traits and between litter size and litter weight traits were positive and relatively moderate or large. Litter weight traits were positively correlated both genetically and phenotypically. The genetic and phenotypic correlations between litter size traits and mean weight of young at weaning were negative and relatively moderate or large.

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