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<blockquote data-quote="MO_cows" data-source="post: 724437" data-attributes="member: 9169"><p>The question was, why have birth weights gone up so much?</p><p></p><p>My answer is, because there was selection for growth, growth, and more growth and the mature frame size of most breeds of cattle went up. A pound here, a pound there, the birth weights came along with the frame. </p><p></p><p>One of the PhD's from CSU, where a lot of the cattle evaluations that generate EPD's gets done, spoke at the Tarentaise meeting one year. The question posed to him from a member was - what's more important when selecting for calving ease, the BW or the CED EPD? His answer, the calving ease EPD, because it had more factors weighted into it.</p></blockquote><p></p>
[QUOTE="MO_cows, post: 724437, member: 9169"] The question was, why have birth weights gone up so much? My answer is, because there was selection for growth, growth, and more growth and the mature frame size of most breeds of cattle went up. A pound here, a pound there, the birth weights came along with the frame. One of the PhD's from CSU, where a lot of the cattle evaluations that generate EPD's gets done, spoke at the Tarentaise meeting one year. The question posed to him from a member was - what's more important when selecting for calving ease, the BW or the CED EPD? His answer, the calving ease EPD, because it had more factors weighted into it. [/QUOTE]
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