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Inbreeding
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<blockquote data-quote="dun" data-source="post: 507917" data-attributes="member: 34"><p>The closest inbreeding experiment that I have seen was using one bull on 3 generations. I always have a hard time explaining this part. Bull A was bred to cow B, heifer calf AB was bred back to A, heifer calf AAB was bred back to A producing heifer calf AAAB. not sure if that's clear or not. Bull was known to down size frames. Heifer AAAB was much smaller then her dam or grand dam, etc. When she calved bred to a different bull the calf was still born. She went to the packers with out being rebred. If the still born was a reuslt of such intense inbreeding or just a chance occurence I have no idea. Calf appeard completely normal exteranlly, just dead at birth. The rest of her ancestors are still in the herd and still producing, just never bred back to bull A again. One thing that I found intersting is that bull A is noted for have wild/high headed offspring. All of the daughters from this experiment are calm easy going cows, even the small heifer was really calm and laid back.</p></blockquote><p></p>
[QUOTE="dun, post: 507917, member: 34"] The closest inbreeding experiment that I have seen was using one bull on 3 generations. I always have a hard time explaining this part. Bull A was bred to cow B, heifer calf AB was bred back to A, heifer calf AAB was bred back to A producing heifer calf AAAB. not sure if that's clear or not. Bull was known to down size frames. Heifer AAAB was much smaller then her dam or grand dam, etc. When she calved bred to a different bull the calf was still born. She went to the packers with out being rebred. If the still born was a reuslt of such intense inbreeding or just a chance occurence I have no idea. Calf appeard completely normal exteranlly, just dead at birth. The rest of her ancestors are still in the herd and still producing, just never bred back to bull A again. One thing that I found intersting is that bull A is noted for have wild/high headed offspring. All of the daughters from this experiment are calm easy going cows, even the small heifer was really calm and laid back. [/QUOTE]
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