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Ideal Birth Weight
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<blockquote data-quote="PASS" data-source="post: 49137" data-attributes="member: 69"><p>What I don't understand about EPD's is, do they take lets say, 100 bull calves, raise them under controled conditions and then use thier numbers only? Do they take all the birthweights from this group and get the mean or the average and use that as ZERO. The rest are a + or - from that number. Or, is this a cumlative number from all bulls of this breed for the last nubmer of years?</p><p></p><p>I don't understand where the average numbers come from. :?: </p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="PASS, post: 49137, member: 69"] What I don't understand about EPD's is, do they take lets say, 100 bull calves, raise them under controled conditions and then use thier numbers only? Do they take all the birthweights from this group and get the mean or the average and use that as ZERO. The rest are a + or - from that number. Or, is this a cumlative number from all bulls of this breed for the last nubmer of years? I don't understand where the average numbers come from. :?: Thanks [/QUOTE]
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