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Breeding / Calving Issues
Twins? Learned Something New
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<blockquote data-quote="Lucky_P" data-source="post: 1837545" data-attributes="member: 12607"><p>The proposed connection between phytoestrogens from legumes and multiple births in cattle is shaky, at best. Most of that work was done with sheep, and it doesn't necessarily carry over to cattle. Plant breeders have reduced phytoestrogen precursors in most Trifolium clover varieties on the market today.</p><p>There is a definite, proven genetic component...some breeds are noted for twinning, and US Meat Animal Research Center had developed a composite line of cattle that had twinning rates consistently in the 60% range. ABS marketed semen on some of those Twinners, back in the 1980s</p><p>[URL unfurl="true"]https://www.twinnercattle.com/index.php/what-are-twinners/[/URL]</p><p></p><p>I, too, learned something new about twinning recently, and I've been in the veterinary medical field for over 40 years ... If twins are bilateral - one in each uterine horn - abortion rate can be expected to be ~2%; but if they are unilateral - both implanted in the same uterine horn - abortion rate may approach 40%.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1837545, member: 12607"] The proposed connection between phytoestrogens from legumes and multiple births in cattle is shaky, at best. Most of that work was done with sheep, and it doesn't necessarily carry over to cattle. Plant breeders have reduced phytoestrogen precursors in most Trifolium clover varieties on the market today. There is a definite, proven genetic component...some breeds are noted for twinning, and US Meat Animal Research Center had developed a composite line of cattle that had twinning rates consistently in the 60% range. ABS marketed semen on some of those Twinners, back in the 1980s [URL unfurl="true"]https://www.twinnercattle.com/index.php/what-are-twinners/[/URL] I, too, learned something new about twinning recently, and I've been in the veterinary medical field for over 40 years ... If twins are bilateral - one in each uterine horn - abortion rate can be expected to be ~2%; but if they are unilateral - both implanted in the same uterine horn - abortion rate may approach 40%. [/QUOTE]
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