| Estimates of beef growth trait variances and heritabilities determined from field records. | |
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MedLine Citation:
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PMID: 3759675 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Variance components were estimated from field-collected performance records for use in national beef sire evaluation mixed-model programs. Estimates of residual error variances (sigma 2e), sire effect variances (sigma 2s) and dam effect variances (sigma 2d) were obtained for the American Hereford and the American Angus breeds for each of three growth traits: birth weight, weaning weight and postweaning gain. Estimates obtained for birth weight were sigma 2e, 8.43 and 9.26 kg2; sigma 2s, 1.34 and .66 kg2; and sigma 2d, 3.24 and 3.70 kg2 for the Hereford and Angus breeds, respectively. Estimates obtained for weaning weight were sigma 2e, 438.09 and 267.38 kg2; sigma 2s, 20.37 and 17.13 kg2; and sigma 2d, 162.25 and 157.28 kg2 for the Hereford and Angus breeds, respectively. Estimates obtained for postweaning gain were sigma 2e, 425.75 and 374.33 kg2; sigma 2s, 20.08 and 16.49 kg2; and sigma 2d, 41.74 and 48.61 kg2 for the Hereford and Angus breeds, respectively. |
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Authors:
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D E Wilson; P J Berger; R L Willham |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of animal science Volume: 63 ISSN: 0021-8812 ISO Abbreviation: J. Anim. Sci. Publication Date: 1986 Aug |
Date Detail:
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Created Date: 1986-10-30 Completed Date: 1986-10-30 Revised Date: 2006-11-15 |
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: 386-94 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Animals Body Weight* Cattle / genetics*, growth & development Female Male Models, Biological |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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