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Breeding / Calving Issues
Sires birth EPD vs maternal calving ease of daughters
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<blockquote data-quote="Ebenezer" data-source="post: 1310281" data-attributes="member: 24565"><p>What you have now is both ends (extremes) and the middle and the awareness that all do exist in data. But the big question that is vital: Is there a genetic correlation between sire BW EPD and daughters' MCE. With correlation coefficients you have proof to beat any old wife. Without genetics to back you up, you have one breed's trend only.</p><p></p><p> Ref: <a href="http://www.angus.org/Nce/Documents/CedCemEpd.pdf" target="_blank">http://www.angus.org/Nce/Documents/CedCemEpd.pdf</a></p><p></p><p>Unless you find differently, this is the known link for only these two traits. But it does not answer your direct question of BW EPD.</p><p></p><p><a href="http://charolaisusa.com/members/genetic_evaluation.html" target="_blank">http://charolaisusa.com/members/genetic_evaluation.html</a> The download for correlations show:</p><p></p><p> WW CED CEM</p><p>BW 0.47 -0.67 0.16</p><p></p><p>What I think I see: CED links to CEM. BW links to WW, can have a negative on CED and is not a negative for CEM but is not as strongly linked. So if you select +CED and +BW you can have easy calving cattle that grow better until weaning than low BW cattle. Hope that helps.</p></blockquote><p></p>
[QUOTE="Ebenezer, post: 1310281, member: 24565"] What you have now is both ends (extremes) and the middle and the awareness that all do exist in data. But the big question that is vital: Is there a genetic correlation between sire BW EPD and daughters' MCE. With correlation coefficients you have proof to beat any old wife. Without genetics to back you up, you have one breed's trend only. Ref: [url=http://www.angus.org/Nce/Documents/CedCemEpd.pdf]http://www.angus.org/Nce/Documents/CedCemEpd.pdf[/url] Unless you find differently, this is the known link for only these two traits. But it does not answer your direct question of BW EPD. [url]http://charolaisusa.com/members/genetic_evaluation.html[/url] The download for correlations show: WW CED CEM BW 0.47 -0.67 0.16 What I think I see: CED links to CEM. BW links to WW, can have a negative on CED and is not a negative for CEM but is not as strongly linked. So if you select +CED and +BW you can have easy calving cattle that grow better until weaning than low BW cattle. Hope that helps. [/QUOTE]
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Sires birth EPD vs maternal calving ease of daughters
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