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AA PRF Wideload...
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<blockquote data-quote="OLF" data-source="post: 641142" data-attributes="member: 9761"><p>From Star Lake website:</p><p>"BW (Birth Weight): Derived from the actual birth weight ranking within the contemporary group where the calf was born. The first BW EPD issued for a calf is the average of the dam and the sire, with an adjustment made from that number to reflect the actual birth weight of an individual as compared to its contemporary group average. An actual birth weight that is exceptionally higher or lower than the average of its contemporary group will change that individual's BW EPD accordingly. The BW EPD is primarily changed when progeny have been recorded from the subject animal and the accuracy becomes much higher. The birth weight is adjusted according to the age of dam. The BW EPD has no correlation to an actual birth weight (an 85 lb. calf can have a BW EPD of 4.5 or 5.5 or 6.5 or even a 2.5 in different herds). A lower number is desirable and indicates less expected birth weight."</p><p></p><p>OK, this kind of answers my question, but what does the BW EPD really tell me?</p></blockquote><p></p>
[QUOTE="OLF, post: 641142, member: 9761"] From Star Lake website: "BW (Birth Weight): Derived from the actual birth weight ranking within the contemporary group where the calf was born. The first BW EPD issued for a calf is the average of the dam and the sire, with an adjustment made from that number to reflect the actual birth weight of an individual as compared to its contemporary group average. An actual birth weight that is exceptionally higher or lower than the average of its contemporary group will change that individual’s BW EPD accordingly. The BW EPD is primarily changed when progeny have been recorded from the subject animal and the accuracy becomes much higher. The birth weight is adjusted according to the age of dam. The BW EPD has no correlation to an actual birth weight (an 85 lb. calf can have a BW EPD of 4.5 or 5.5 or 6.5 or even a 2.5 in different herds). A lower number is desirable and indicates less expected birth weight." OK, this kind of answers my question, but what does the BW EPD really tell me? [/QUOTE]
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