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Breeding / Calving Issues
birth weights lower in fall?
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 611720" data-attributes="member: 968"><p>Redcows is correct. The dam has more to do with the BW than people give credit. Some cows are just calf growers. Yes, you can reduce her BW using a super easy, low BW bull, but across the board, compared to contemporary cows, she will have a heavier BW calf than the others.</p><p></p><p>Brahman cows have a built-in ability to only produce a certain weight calf - no matter what bull she is bred to - but, the offspring 1/2 brahman 1/2 whatever does NOT have the same capability. So, if you keep a heifer out of a heavy BW sire, you can expect her progeny to be heavier.</p><p></p><p>Back to the original question. Researchers say that fall calves are lighter based on the cold months make BW increase. BUT, as mentioned, if you have lush grasses, this will put some extra weight on the fall calvers. And, depending on your location, your winters could be mild temp - not affecting BW --- or, your summers may be mild, also not affecting BW. (taking nutrition out of the picture)</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 611720, member: 968"] Redcows is correct. The dam has more to do with the BW than people give credit. Some cows are just calf growers. Yes, you can reduce her BW using a super easy, low BW bull, but across the board, compared to contemporary cows, she will have a heavier BW calf than the others. Brahman cows have a built-in ability to only produce a certain weight calf - no matter what bull she is bred to - but, the offspring 1/2 brahman 1/2 whatever does NOT have the same capability. So, if you keep a heifer out of a heavy BW sire, you can expect her progeny to be heavier. Back to the original question. Researchers say that fall calves are lighter based on the cold months make BW increase. BUT, as mentioned, if you have lush grasses, this will put some extra weight on the fall calvers. And, depending on your location, your winters could be mild temp - not affecting BW --- or, your summers may be mild, also not affecting BW. (taking nutrition out of the picture) [/QUOTE]
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birth weights lower in fall?
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