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Reaching genetic potential
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<blockquote data-quote="Frankie" data-source="post: 154415" data-attributes="member: 13"><p><strong>Ollie' said</strong>:</p><p></p><p></p><p></p><p>Yes, they are, Ollie'. You have a set of cows in your environment and management system. You compare EPDs on two bulls you're considering using. Bull #1 has a BW EPD of 0, Bull #2 has a BW EPD of 5. Breeding those bulls to those cows in your management and environment, you would EXPECT Bull #2's calves to weigh 5 more pounds at birth than bull #1's calves. That's why EPDs can never, ever tell you what a calf will weigh at any time. It's not an exact science, but that's what EPDs do.</p><p></p><p>Contemporary groupings are the key. In contemporary groups all the calves should be managed and raised in the same conditions. That's the data they use to build EPDs, not individual data. If I report a single calf to the Angus Assn, they don't include that data in the NCE. </p><p></p><p>Merry Christmas, by the way. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Frankie, post: 154415, member: 13"] [b]Ollie' said[/b]: Yes, they are, Ollie'. You have a set of cows in your environment and management system. You compare EPDs on two bulls you're considering using. Bull #1 has a BW EPD of 0, Bull #2 has a BW EPD of 5. Breeding those bulls to those cows in your management and environment, you would EXPECT Bull #2's calves to weigh 5 more pounds at birth than bull #1's calves. That's why EPDs can never, ever tell you what a calf will weigh at any time. It's not an exact science, but that's what EPDs do. Contemporary groupings are the key. In contemporary groups all the calves should be managed and raised in the same conditions. That's the data they use to build EPDs, not individual data. If I report a single calf to the Angus Assn, they don't include that data in the NCE. Merry Christmas, by the way. :) [/QUOTE]
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