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Another breed debate. Beefalo VS Simmentals
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<blockquote data-quote="dun" data-source="post: 606303" data-attributes="member: 34"><p>Regardless of what the prof said, they are not all sterile. If they were there wouldn;t be a second cross. The Beefalo I've looked body wise more Holsteiny and not particularly beefy until the buffalo part was down below a 1/4.</p><p>Tere used to be 2 groups working on the hybridization. I don;t recall which was which. One group used buff cows and cattle bulls and the other used cattle cows and buff bulls. One hybred was called cattelo the other beefalo. Haven;t herd of cattelo in a long time.</p><p><strong>From around the web:</strong></p><p><em>According to the New York Times article, only 10,000 out of 300,000 bison are actually pure bison. So almost all bison are cattle-bison hybrids to some extent, except for the herds in Yellowstone, Wind Cave National Park, and a few others.</em></p><p><em></em></p><p><em>As far as evolution goes, the only offspring from a cattle-bison cross that can reproduce are those that are fertile. There may be some sterile offspring, but they won't contribute anything to future populations since they can't reproduce. </em></p><p><em></em></p><p><em>Both cattle and bison have 30 chromosomes, with about 25,000 or so genes, so I'm sure there are plenty of cattle genes that don't affect fertility, and vice versa. </em></p><p><em></em></p><p><em>The New York Times quoted James Derr, from the Texas A&M University, as saying that, </em></p><p><em></em></p><p><em>"They [cattle ranchers] purposely crossed bison with domestic cattle to make a better beef animal. Bison did better in harsh conditions and are more resistant to parasites and native viral diseases." </em></p><p><em></em></p><p><em>I suppose that helps explain, in part, why the hybrids are so prevalent.</em></p></blockquote><p></p>
[QUOTE="dun, post: 606303, member: 34"] Regardless of what the prof said, they are not all sterile. If they were there wouldn;t be a second cross. The Beefalo I've looked body wise more Holsteiny and not particularly beefy until the buffalo part was down below a 1/4. Tere used to be 2 groups working on the hybridization. I don;t recall which was which. One group used buff cows and cattle bulls and the other used cattle cows and buff bulls. One hybred was called cattelo the other beefalo. Haven;t herd of cattelo in a long time. [b]From around the web:[/b] [i]According to the New York Times article, only 10,000 out of 300,000 bison are actually pure bison. So almost all bison are cattle-bison hybrids to some extent, except for the herds in Yellowstone, Wind Cave National Park, and a few others. As far as evolution goes, the only offspring from a cattle-bison cross that can reproduce are those that are fertile. There may be some sterile offspring, but they won't contribute anything to future populations since they can't reproduce. Both cattle and bison have 30 chromosomes, with about 25,000 or so genes, so I'm sure there are plenty of cattle genes that don't affect fertility, and vice versa. The New York Times quoted James Derr, from the Texas A&M University, as saying that, "They [cattle ranchers] purposely crossed bison with domestic cattle to make a better beef animal. Bison did better in harsh conditions and are more resistant to parasites and native viral diseases." I suppose that helps explain, in part, why the hybrids are so prevalent.[/i] [/QUOTE]
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