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Genetics question
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<blockquote data-quote="EAT BEEF" data-source="post: 698244" data-attributes="member: 7761"><p>Leachman says it best:</p><p></p><p>Why breed Composites?</p><p>1) Hybrid vigour increases productivity by up to 25% through the increase of kilograms weaned per cow exposed.</p><p>2) Hybrid vigour can be retained indefinitely at a constant level with Composites, providing you avoid inbreeding, i.e. a four breed Composite with one quarter of each breed retains 75% of your F1 hybrid vigour.</p><p>3) Breed differences are 100% heritable when widely and properly sampled. No one breed excels in all traits important to beef production, so complimentarity must be utilised to produce cattle above average for all economically important traits.</p><p>4) Hybrid or Composite populations are no more variable than purebred populations</p><p></p><p>Why not call and talk with Leachmans if they know best?</p></blockquote><p></p>
[QUOTE="EAT BEEF, post: 698244, member: 7761"] Leachman says it best: Why breed Composites? 1) Hybrid vigour increases productivity by up to 25% through the increase of kilograms weaned per cow exposed. 2) Hybrid vigour can be retained indefinitely at a constant level with Composites, providing you avoid inbreeding, i.e. a four breed Composite with one quarter of each breed retains 75% of your F1 hybrid vigour. 3) Breed differences are 100% heritable when widely and properly sampled. No one breed excels in all traits important to beef production, so complimentarity must be utilised to produce cattle above average for all economically important traits. 4) Hybrid or Composite populations are no more variable than purebred populations Why not call and talk with Leachmans if they know best? [/QUOTE]
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