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Thoughts on Across Breed EPD's
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<blockquote data-quote="Anonymous" data-source="post: 6561"><p>In an attempt to compare apples to apples in relation to different beef breeds, I took the most recent breed average EPDs and adjusted them based on the 2003 Across Breed EPD adjustments.</p><p></p><p>I compared Angus, Red Angus, Hereford, Limousin, Simmental, Charolais, and Gelbvieh since these are the most popular breeds in my area of the northern corn belt.</p><p></p><p>When I evaluated the adjusted numbers they didn't look right. For example, the average Angus sire has a 1.6 pound lighter birth weight, 13.1 pound heavier yearling weight, and 12.7 more pounds of milk than the average Red Angus sire. This surprised me since Red Angus, as a breed, has REQUIRED performance testing since the inception of their breed registry.</p><p></p><p>Several of the other breed comparisons also look incorrect. For example the average Angus sires milk EPD is 2.2 pounds heavier than the average Simmentals. I DON'T BELIEVE THIS.</p><p></p><p>I found on the Gelbvieh website that the American Gelbvieh Assn. (AGA) was concerned with this data also. As they pointed out, the Across Breed EPDs, which were developed by the Meat Animal Research Center (MARC) were developed based on "very small sample sizes at a single location." Consequently, the AGA has developed their own Across Breed EPDs for comparing Gelbvieh to Angus and Red Angus which look much more in line.</p><p></p><p>Does anyone else have any thoughts on the MARC Across Breed EPD accuracies?</p></blockquote><p></p>
[QUOTE="Anonymous, post: 6561"] In an attempt to compare apples to apples in relation to different beef breeds, I took the most recent breed average EPDs and adjusted them based on the 2003 Across Breed EPD adjustments. I compared Angus, Red Angus, Hereford, Limousin, Simmental, Charolais, and Gelbvieh since these are the most popular breeds in my area of the northern corn belt. When I evaluated the adjusted numbers they didn't look right. For example, the average Angus sire has a 1.6 pound lighter birth weight, 13.1 pound heavier yearling weight, and 12.7 more pounds of milk than the average Red Angus sire. This surprised me since Red Angus, as a breed, has REQUIRED performance testing since the inception of their breed registry. Several of the other breed comparisons also look incorrect. For example the average Angus sires milk EPD is 2.2 pounds heavier than the average Simmentals. I DON'T BELIEVE THIS. I found on the Gelbvieh website that the American Gelbvieh Assn. (AGA) was concerned with this data also. As they pointed out, the Across Breed EPDs, which were developed by the Meat Animal Research Center (MARC) were developed based on "very small sample sizes at a single location." Consequently, the AGA has developed their own Across Breed EPDs for comparing Gelbvieh to Angus and Red Angus which look much more in line. Does anyone else have any thoughts on the MARC Across Breed EPD accuracies? [/QUOTE]
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