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<blockquote data-quote="Son of Butch" data-source="post: 1578843" data-attributes="member: 14585"><p>In theory the 2nd bull would be better for retaining heifers mostly based on cem.</p><p>I would not put too much weight on any unproven bull's milk epd.</p><p>1st the accuracy is still very low... probably around .39 or less</p><p>2nd Milk heritability is the lowest of all epd traits at only .12 (even on the best of proven bulls)</p><p>meaning 88% of milk production is influenced by environment.</p><p>(Mature height has the highest heritability .62)</p><p></p><p>The 2nd bull may well give you the most bang for your buck.</p><p>As I said before, I'd strongly encourage the final selection be based on visual appraisal of the bulls and their dams, rather than based on low accuracy epds which are subject to a wide range of probable change before the truth is known.</p></blockquote><p></p>
[QUOTE="Son of Butch, post: 1578843, member: 14585"] In theory the 2nd bull would be better for retaining heifers mostly based on cem. I would not put too much weight on any unproven bull's milk epd. 1st the accuracy is still very low... probably around .39 or less 2nd Milk heritability is the lowest of all epd traits at only .12 (even on the best of proven bulls) meaning 88% of milk production is influenced by environment. (Mature height has the highest heritability .62) The 2nd bull may well give you the most bang for your buck. As I said before, I'd strongly encourage the final selection be based on visual appraisal of the bulls and their dams, rather than based on low accuracy epds which are subject to a wide range of probable change before the truth is known. [/QUOTE]
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