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EPD's What Do They Mean?
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<blockquote data-quote="Frankie" data-source="post: 168041" data-attributes="member: 13"><p>It means, very simply, if you breed a cow to a bull with a +2 BW EPD, doesn't matter what breed, under what conditions, you would EXPECT her calf would weigh two more pounds <strong>at birth than if you bred that same cow to a bull, same breed, with a BW EPD of 0</strong>. It's a statistical average, of course, not an exact science, but it's that simple. </p><p></p><p></p><p></p><p>It doesn't matter. The EPD will never, ever tell you what something will weigh. So why are you so concerned about deviations? EPDs only allow you to compare one breeding animal to another.</p><p></p><p></p><p></p><p>It means there's enough information on the EPD database to allow the computer program to assign that accuracy to that animal. </p><p></p><p></p><p></p><p>Again you're trying to make EPDs much harder than they are. EPDs are built for simple use along with other, older methods of choosing a breeding animal.</p><p></p><p></p><p></p><p>But that's not what a .30 EPD accuracy means. You're simply trying to make them do something they won't do. You can't. You can rail, rant, question, all you want, but EPDs are meant to compare one breeding animal to another. If you breed your cattle to a bull with a BW EPD of 5, you would EXPECT them to produce calves that weigh 5 more pounds at birth than if you bred those same cows, same management, to a bull with a BW EPD of 0. It's that simple. </p><p></p><p></p><p></p><p>In my humble opinion and experience in talking to lots of Angus bull buyers, many, many people know, understand and use EPDs as a selection tool in the cattle business.</p></blockquote><p></p>
[QUOTE="Frankie, post: 168041, member: 13"] It means, very simply, if you breed a cow to a bull with a +2 BW EPD, doesn't matter what breed, under what conditions, you would EXPECT her calf would weigh two more pounds [b]at birth than if you bred that same cow to a bull, same breed, with a BW EPD of 0[/b]. It's a statistical average, of course, not an exact science, but it's that simple. It doesn't matter. The EPD will never, ever tell you what something will weigh. So why are you so concerned about deviations? EPDs only allow you to compare one breeding animal to another. It means there's enough information on the EPD database to allow the computer program to assign that accuracy to that animal. Again you're trying to make EPDs much harder than they are. EPDs are built for simple use along with other, older methods of choosing a breeding animal. But that's not what a .30 EPD accuracy means. You're simply trying to make them do something they won't do. You can't. You can rail, rant, question, all you want, but EPDs are meant to compare one breeding animal to another. If you breed your cattle to a bull with a BW EPD of 5, you would EXPECT them to produce calves that weigh 5 more pounds at birth than if you bred those same cows, same management, to a bull with a BW EPD of 0. It's that simple. In my humble opinion and experience in talking to lots of Angus bull buyers, many, many people know, understand and use EPDs as a selection tool in the cattle business. [/QUOTE]
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