| Simple example illustrating adjustment for merit of mates in a national cattle evaluation program. | |
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MedLine Citation:
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PMID: 10985424 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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One of the requirements for an effective progeny test is that each sire being evaluated should be mated to a random sample of females; however, random mating is seldom practiced by purebred beef cattle producers. A simple example involving 18 individuals (14 parents and 4 nonparents) was developed to help students enrolled in a junior-level animal breeding course comprehend how current genetic evaluation methodology, used on an industrywide basis, accounts for nonrandom mating by purebred beef cattle breeders for a maternally influenced trait such as calf weaning weight. With this example, students are able to visualize, algebraically, how a sire's direct and maternal genetic values for weaning weight are adjusted for merit of mates, permitting sires to be compared regardless of mating criteria used by purebred beef cattle producers. |
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Authors:
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F A Thrift |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Journal of animal science Volume: 78 ISSN: 0021-8812 ISO Abbreviation: J. Anim. Sci. Publication Date: 2000 Sep |
Date Detail:
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Created Date: 2000-12-19 Completed Date: 2000-12-19 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8003002 Medline TA: J Anim Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 2475-8 Citation Subset: IM |
Affiliation:
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Department of Animal Sciences, University of Kentucky, Lexington 40546, USA. fthrift@ca.uky.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Breeding / methods* Cattle / genetics* Female Male Weaning |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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