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crossbred bull question
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<blockquote data-quote="simme" data-source="post: 1725887" data-attributes="member: 40418"><p>May be two different approaches and lines of thought on this crossbred bull subject. I agree that breeds that are very different allow more opportunity for heterosis. The same can be said within a breed. In the US, angus is the big breed with lots of choices on bulls. You can look at the genetics and select a mating that goes a ways back in the gene pool without common ancestors. Within a breed, that is referred to as an outcross. The genetic principle is the same with more heterosis with diversity. And there is the possibility of more variation with more diversity.</p><p>My original post in this thread related to using a crossbred bull and that some people say that you should not due to inconsistent results. I guess it depends on the bull and the mating. If there is a lot of diversity in the mating like white and red spotted low input cattle bred to thick black cattle, you would expect some inconsistency and variation. The crossbred simangusbull that I use is similar in type and kind and appearance to the simmental cows. With a little angus that might help with a few things. Best I remember, Jim Leachman that I mentioned earlier referred to his Stabilizers as "look-a-likes". Bulls with some genetic diversity that looked alike, but hopefully performed better in terms of growth, efficiency, grade, tenderness and such economically important traits. Just some explanation of my thinking. I could be wrong, of course.</p><p></p><p>Said with a little humor - one should not be concerned about percent of their genetics in children or grandchildren if the number is somewhat close to 50 or 25. If it is zero, there is too much diversity.</p></blockquote><p></p>
[QUOTE="simme, post: 1725887, member: 40418"] May be two different approaches and lines of thought on this crossbred bull subject. I agree that breeds that are very different allow more opportunity for heterosis. The same can be said within a breed. In the US, angus is the big breed with lots of choices on bulls. You can look at the genetics and select a mating that goes a ways back in the gene pool without common ancestors. Within a breed, that is referred to as an outcross. The genetic principle is the same with more heterosis with diversity. And there is the possibility of more variation with more diversity. My original post in this thread related to using a crossbred bull and that some people say that you should not due to inconsistent results. I guess it depends on the bull and the mating. If there is a lot of diversity in the mating like white and red spotted low input cattle bred to thick black cattle, you would expect some inconsistency and variation. The crossbred simangusbull that I use is similar in type and kind and appearance to the simmental cows. With a little angus that might help with a few things. Best I remember, Jim Leachman that I mentioned earlier referred to his Stabilizers as "look-a-likes". Bulls with some genetic diversity that looked alike, but hopefully performed better in terms of growth, efficiency, grade, tenderness and such economically important traits. Just some explanation of my thinking. I could be wrong, of course. Said with a little humor - one should not be concerned about percent of their genetics in children or grandchildren if the number is somewhat close to 50 or 25. If it is zero, there is too much diversity. [/QUOTE]
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