| Genetic effects on shape and fatness of calves from diverse crosses | |
Abstract/OtherAbstract
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The importance of direct genetic, maternal, heterosis and epistatic effects were examined on pre- and post-weaning dry and wet season average daily gains in weight, height, fat depth and a measure of muscle (ratio of stifle to hip width). The genotype used were two pure breeds (Jersey, JJ and Limousin, LL), the Limousin x Jersey LJ, and two backcrosses (LJ x Jersey dams and LJ x Limousin dams). Direct genetic effects were large (P<0.01) in all the traits. Jersey maternal effects were large for weight (P<0.01), fat depth (P<0.001) and muscle (P<0.001) in the post-weaning wet season performance. This is an indication of the impact of Jersey genes beyond weaning. There were large heterosis effects relative to direct effects on fat depth at pre- and post-weaning ages. Epistatic effects were observed only in post-weaning gain in weight and fat depth which is an indication that this effect is more expressed in advanced age. |
Authors
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Afolayan, R. A., Pitchford, Wayne Scott, Bottema, Cynthia Denise Klemme |
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Contributors
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Publication Detail
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Publisher : Association for the Advancement of Animal Breeding and Genetics Type : conference paper Format : - |
Date Detail
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2007, 2007, 2001 |
Subject
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Genetic effectsl; weight; height; fat depth; muscle |
Coverage
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Relation
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http://link.library.adelaide.edu.au/?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Genetic%20effects%20on%20shape%20and%20fatness%20of%20calves%20from%20diverse%20crosses&rft.aulast=Afolayan&rft.isbn=0958629919&rft.btitle=Proceedings%20of%20the%20Association%20for%20the%20Advancement%20of%20Animal%20Breeding%20and%20Genetics&rft.date=2001 |
Source
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http://www.aaabg.org/livestocklibrary/2001/ab01115.pdf |
Copyright Information
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- |
Other Details
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Languages : en |
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