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Low Birth Weight Bulls
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<blockquote data-quote="Bonsman" data-source="post: 663651" data-attributes="member: 8504"><p>The Cows were all born in 2006; these were there second calves. They are full blood Bonsmara. The were all managed in the same group. During the winter they were fed alfalfa (all they could eat) and 4lbs per day of 20% breeders cubes. </p><p></p><p>The bull measures out really nice using the lineal measurement system developed by professor Bonsma. The two big bull calves came out of two cows heavily influenced by J8 genetics. The J8 Bonsmara genetics are well known in that third world country of South Africa.</p><p></p><p>The ten cows were heifers last year. I used a different bull on them, which led to birthweights in the 70's for heifer calves; and 80's for bull calves. Last year they did not receive as much groceries as they did this year.</p><p></p><p>Maybe it is partly genetics on the cow side; and partly too much to eat towards calving season.</p></blockquote><p></p>
[QUOTE="Bonsman, post: 663651, member: 8504"] The Cows were all born in 2006; these were there second calves. They are full blood Bonsmara. The were all managed in the same group. During the winter they were fed alfalfa (all they could eat) and 4lbs per day of 20% breeders cubes. The bull measures out really nice using the lineal measurement system developed by professor Bonsma. The two big bull calves came out of two cows heavily influenced by J8 genetics. The J8 Bonsmara genetics are well known in that third world country of South Africa. The ten cows were heifers last year. I used a different bull on them, which led to birthweights in the 70's for heifer calves; and 80's for bull calves. Last year they did not receive as much groceries as they did this year. Maybe it is partly genetics on the cow side; and partly too much to eat towards calving season. [/QUOTE]
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