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Replacement females???
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<blockquote data-quote="Travlr" data-source="post: 1848417" data-attributes="member: 42463"><p>I posted an example... Because of AI and our fascination for following our own (human) herd we use bulls that are descended from the top AI bulls in the country, which are in turn descended from the the top bulls of the prior generation. It's a pyramid. The top bulls produce the next lower layer, and they produce the entire next layer which are the result of AI, and commercial bulls. And then the few people that raise their own bulls are almost assured to be using genetics directly descended in very few generations from the same genetic source.</p><p></p><p>If people don't want to understand the ramifications and haven't the open mind necessary to learn, instead defending what they want to believe, it doesn't change the facts. There are all kinds of examples in the world where inbreeding has created problems. Everything from the Florida cougar to domestic dogs to human beings.</p><p></p><p>Golden retrievers, dalmatians, German shepherds, and all kinds of other breeds are trying to deal with genetic defects due to inbreeding... and some breeds have more than one defect.</p><p></p><p>There's a lot of changes in how the public perceives science lately, and it's based in basic ignorance and wishful thinking. What was once common sense is now common ignorance... not because the science has changed but because people think results based on extremely limited, anecdotal experience and a desire to appear intelligent by questioning authority. But all opinions are not equal.</p></blockquote><p></p>
[QUOTE="Travlr, post: 1848417, member: 42463"] I posted an example... Because of AI and our fascination for following our own (human) herd we use bulls that are descended from the top AI bulls in the country, which are in turn descended from the the top bulls of the prior generation. It's a pyramid. The top bulls produce the next lower layer, and they produce the entire next layer which are the result of AI, and commercial bulls. And then the few people that raise their own bulls are almost assured to be using genetics directly descended in very few generations from the same genetic source. If people don't want to understand the ramifications and haven't the open mind necessary to learn, instead defending what they want to believe, it doesn't change the facts. There are all kinds of examples in the world where inbreeding has created problems. Everything from the Florida cougar to domestic dogs to human beings. Golden retrievers, dalmatians, German shepherds, and all kinds of other breeds are trying to deal with genetic defects due to inbreeding... and some breeds have more than one defect. There's a lot of changes in how the public perceives science lately, and it's based in basic ignorance and wishful thinking. What was once common sense is now common ignorance... not because the science has changed but because people think results based on extremely limited, anecdotal experience and a desire to appear intelligent by questioning authority. But all opinions are not equal. [/QUOTE]
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