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Twin Bull
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<blockquote data-quote="Anonymous" data-source="post: 13922"><p>Do to the commingling of blood before birth the fertility of the bull twin is reduced. This only applies if the heifer twin is a freemartin. If you do a google search on "freemartin twinning" there are a number of intersting reports on twinning.</p><p></p><p>dunmovin farms</p><p></p><p>> The Meat Animal Research Center</p><p>> (MARC) ran a long study of</p><p>> twinning in beef cattle. They even</p><p>> went so far as to produce a line</p><p>> of bulls whose daughters were more</p><p>> likely to twin. Their semen was</p><p>> sold by ABS as MARC Twinners. But</p><p>> at the end of the study, they</p><p>> found beef cows who had twin</p><p>> calves had twice as much calving</p><p>> difficulty as single births, had a</p><p>> considerably slower breed back</p><p>> rate and didn't wean considerably</p><p>> more pounds of beef. And, of</p><p>> course, a heifer born to a bull</p><p>> twin will not be fertile, so that</p><p>> could be a loss if you are</p><p>> breeding purebred animals.</p></blockquote><p></p>
[QUOTE="Anonymous, post: 13922"] Do to the commingling of blood before birth the fertility of the bull twin is reduced. This only applies if the heifer twin is a freemartin. If you do a google search on "freemartin twinning" there are a number of intersting reports on twinning. dunmovin farms > The Meat Animal Research Center > (MARC) ran a long study of > twinning in beef cattle. They even > went so far as to produce a line > of bulls whose daughters were more > likely to twin. Their semen was > sold by ABS as MARC Twinners. But > at the end of the study, they > found beef cows who had twin > calves had twice as much calving > difficulty as single births, had a > considerably slower breed back > rate and didn't wean considerably > more pounds of beef. And, of > course, a heifer born to a bull > twin will not be fertile, so that > could be a loss if you are > breeding purebred animals. [/QUOTE]
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