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EPD question
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<blockquote data-quote="Frankie" data-source="post: 462098" data-attributes="member: 13"><p>Breed associations do use contemporary groupings for EPDs. But they don't take environment or management into consideration. I run cattle on native grass and I report, say 600 lb WW weights. You may run yours on irrigated, knee high forage and report 800 lb WW weights. <strong>It doesn't matter what weights we report. </strong> What matters is the ranking of each animal within their contemporary group. That's how they take environment and management out of the mix.</p><p></p><p>And you are completely and totally wrong about saying an animal with a 98 lb weight will produce a calf weigh 28 pounds more. EPDs will never, ever tell you what something will weigh. They can't possibly do that. If you breed a Jersey cow and a Char cow to the same bull, do you expect their calves to weigh the same? Of course not. EPDs will only tell you that if you breed those two cows to a bull with a WW EPD (for example) of 50, you would EXPECT the calves to weigh 50 more pounds at weaning than IF YOU BRED THEM TO A BULL WITH A WW EPD of 0. </p><p></p><p>ROUX, read Dun's link and check back if you have questions.</p></blockquote><p></p>
[QUOTE="Frankie, post: 462098, member: 13"] Breed associations do use contemporary groupings for EPDs. But they don't take environment or management into consideration. I run cattle on native grass and I report, say 600 lb WW weights. You may run yours on irrigated, knee high forage and report 800 lb WW weights. [b]It doesn't matter what weights we report. [/b] What matters is the ranking of each animal within their contemporary group. That's how they take environment and management out of the mix. And you are completely and totally wrong about saying an animal with a 98 lb weight will produce a calf weigh 28 pounds more. EPDs will never, ever tell you what something will weigh. They can't possibly do that. If you breed a Jersey cow and a Char cow to the same bull, do you expect their calves to weigh the same? Of course not. EPDs will only tell you that if you breed those two cows to a bull with a WW EPD (for example) of 50, you would EXPECT the calves to weigh 50 more pounds at weaning than IF YOU BRED THEM TO A BULL WITH A WW EPD of 0. ROUX, read Dun's link and check back if you have questions. [/QUOTE]
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