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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 1810172" data-attributes="member: 968"><p>The COW has more to do with the weight of the calf than the sire. Her genetics. Her environment. Her appetite. The COWS BW is more important than the bulls. Yes, the bull is 50% of the genetics, but the cow trumps that with environment.</p><p>I have a friend that lives about 1 hour away. PB Simmental herd. Almost a mirror image of my herd. He's purchased a lot of my genetics. We use almost the same bulls year after year. He cannot believe how heavy my birthweights are compared to his.</p><p>But, he has a huge barn that his cows get to lounge in all winter long. No environmental stress. He is still putting up first cutting. Mine has been done for a month. Mine is a LOT higher protein. So, between less stress of the COLD and lower protein, his calves are always smaller.</p><p>Severe cold grows fetuses. Protein grows fetuses. Hard combo. My heifers generally have 80-95# calves unassisted. Some, not many, have had over 100# calves. Like most producers, I watch my heifers closely at calving time, but it is very rare that we assist - except malpresentations.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 1810172, member: 968"] The COW has more to do with the weight of the calf than the sire. Her genetics. Her environment. Her appetite. The COWS BW is more important than the bulls. Yes, the bull is 50% of the genetics, but the cow trumps that with environment. I have a friend that lives about 1 hour away. PB Simmental herd. Almost a mirror image of my herd. He's purchased a lot of my genetics. We use almost the same bulls year after year. He cannot believe how heavy my birthweights are compared to his. But, he has a huge barn that his cows get to lounge in all winter long. No environmental stress. He is still putting up first cutting. Mine has been done for a month. Mine is a LOT higher protein. So, between less stress of the COLD and lower protein, his calves are always smaller. Severe cold grows fetuses. Protein grows fetuses. Hard combo. My heifers generally have 80-95# calves unassisted. Some, not many, have had over 100# calves. Like most producers, I watch my heifers closely at calving time, but it is very rare that we assist - except malpresentations. [/QUOTE]
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