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<blockquote data-quote="ollie" data-source="post: 61526" data-attributes="member: 323"><p>Try this example, two bulls each appear to be functionally sound. The EPDs for weaning weight are +35 and +15, respectively. The first bull is expected to produce calves 20 pounds heavier than is the second bull. The progeny would be 35 or 15 pounds, respectively, heavier at weaning than the average in the reference breed. If, on the other hand, they're mated to cows above average in performance, then the magnitude of the increased weight would be smaller. However, the 20 pound average difference in progeny performance between the two bulls should be constant if the bulls are mated to cows of similar genetic merit. The EPD value is the best predictor of performance of future progeny of a sire in comparison with progeny of other sires when both are mated to comparable cows.</p><p></p><p>This is copied from this site.<a href="http://sfbfp.ifas.ufl.edu/usesum.html" target="_blank">http://sfbfp.ifas.ufl.edu/usesum.html</a></p></blockquote><p></p>
[QUOTE="ollie, post: 61526, member: 323"] Try this example, two bulls each appear to be functionally sound. The EPDs for weaning weight are +35 and +15, respectively. The first bull is expected to produce calves 20 pounds heavier than is the second bull. The progeny would be 35 or 15 pounds, respectively, heavier at weaning than the average in the reference breed. If, on the other hand, they're mated to cows above average in performance, then the magnitude of the increased weight would be smaller. However, the 20 pound average difference in progeny performance between the two bulls should be constant if the bulls are mated to cows of similar genetic merit. The EPD value is the best predictor of performance of future progeny of a sire in comparison with progeny of other sires when both are mated to comparable cows. This is copied from this site.[url=http://sfbfp.ifas.ufl.edu/usesum.html]http://sfbfp.ifas.ufl.edu/usesum.html[/url] [/QUOTE]
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