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Genetic and phenotypic evaluation for reproduction performance of Egyptian buffaloes - 1991

Animal Production, Britain; Top ten most cited Journals Ranked by Impact from website (Impact 1981-2006): • 1991
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Publication Information
Authors Khalil M.H., Mourad K.A., Mohamed M.M., Owen J.B.
Keywords Egyptian buffaloes, genetic and phenotypic evaluation, Reproductive traits, heritability, genetic gain
Journal Animal Production, Britain; Top ten most cited Journals Ranked by Impact from website (Impact 1981-2006):
Publisher British Society of Animal Science
Volume 52
Issue Not Available
Pages 75-82
publication.type International
Paper Link Open Link
Supplementary Materials Not Available
Abstract
An analysis of cow reproductive traits was carried out on 2057 lactation records of Egyptian buffaloes. A total of 651 daughters (paternal half-sisters) of 82 sires were available for the analysis. Reproductive traits analysed were age at first, second and third calving (AC), number of services per conception (NSC), gestation length (GL) and calving interval (CI). Year of calving affected most reproductive traits (P < 0.001) while no important differences were detected among months of calving. Means of NSC, GL and CI decreased linearly (P < 0.01) as parity advanced. Age of cow at calving exerted a pronounced effect (P