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<blockquote data-quote="MikeC" data-source="post: 363693" data-attributes="member: 1604"><p>YW is better described as "Post Weaning Weight". This weight is for analyzing the gain of a contemporary group of calves after they have been removed from the cow, and usually for the 140 subsequent days, no matter the feeding regimen.</p><p></p><p>Feed efficiency has nothing to do with this "Post Weaning Gain".</p><p></p><p>How could it, with no efficiency data reported?</p><p></p><p>A high rate of gain in the overall contemporary group would not cause the entire groups' YW EPD's to be higher because the ratio between the calves is used for calculation.</p></blockquote><p></p>
[QUOTE="MikeC, post: 363693, member: 1604"] YW is better described as "Post Weaning Weight". This weight is for analyzing the gain of a contemporary group of calves after they have been removed from the cow, and usually for the 140 subsequent days, no matter the feeding regimen. Feed efficiency has nothing to do with this "Post Weaning Gain". How could it, with no efficiency data reported? A high rate of gain in the overall contemporary group would not cause the entire groups' YW EPD's to be higher because the ratio between the calves is used for calculation. [/QUOTE]
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