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<blockquote data-quote="Travlr" data-source="post: 1781619" data-attributes="member: 42463"><p>Before AI every bull used on a ranch only covered 30/40 cows, and a lot of them were farm raised and traded between local livestock owners (more or less) with some infusion as non local animals were transported in. If there were 3 million cows, there were a hundred thousand bulls. A bull couldn't produce a thousand offspring... much less fifty thousand. And then of those fifty thousand, ten produce similar numbers, and so on. So yes, the gene pool was much deeper.</p><p></p><p>The mountain lions in some places, like Los Angeles and the Everglades, are inbred because their populations are so small that they breed with animals they are related to. There are no other options for breeding opportunities.</p><p></p><p>Cheetahs are so closely related that they can receive skin grafts from other cheetahs without any fears of rejection, because of a severe bottleneck in their past survival. They survived when most animals with such limited genetic diversity would fail.</p></blockquote><p></p>
[QUOTE="Travlr, post: 1781619, member: 42463"] Before AI every bull used on a ranch only covered 30/40 cows, and a lot of them were farm raised and traded between local livestock owners (more or less) with some infusion as non local animals were transported in. If there were 3 million cows, there were a hundred thousand bulls. A bull couldn't produce a thousand offspring... much less fifty thousand. And then of those fifty thousand, ten produce similar numbers, and so on. So yes, the gene pool was much deeper. The mountain lions in some places, like Los Angeles and the Everglades, are inbred because their populations are so small that they breed with animals they are related to. There are no other options for breeding opportunities. Cheetahs are so closely related that they can receive skin grafts from other cheetahs without any fears of rejection, because of a severe bottleneck in their past survival. They survived when most animals with such limited genetic diversity would fail. [/QUOTE]
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