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Freemartins?
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<blockquote data-quote="regolith" data-source="post: 840190" data-attributes="member: 9267"><p>Rodderz; I've heard my grazier give me the same story (about another line of heifers). Five were empty (I presume about 10%) and all were identified at PD as freemartins.</p><p></p><p>I take that information with a pretty big pinch of salt, myself. The vets aren't perfect. Uteri have been known to do vanishing acts, and sometimes cows have been identified MT and calved within a few months.</p><p></p><p>I've had one freemartin I didn't know about; and I was able to identify how the mix-up might have happened though one thing I'm sure of is that her bull twin was a different breed (several cows nine months previous were exposed to both the Angus bull and Jersey AI).</p><p>What nova says is the reason I've often heard also. Whether it would happen three times without precedent... what was your feed situation the previous autumn? Just a thought.</p><p></p><p>Welcome to the boards.</p></blockquote><p></p>
[QUOTE="regolith, post: 840190, member: 9267"] Rodderz; I've heard my grazier give me the same story (about another line of heifers). Five were empty (I presume about 10%) and all were identified at PD as freemartins. I take that information with a pretty big pinch of salt, myself. The vets aren't perfect. Uteri have been known to do vanishing acts, and sometimes cows have been identified MT and calved within a few months. I've had one freemartin I didn't know about; and I was able to identify how the mix-up might have happened though one thing I'm sure of is that her bull twin was a different breed (several cows nine months previous were exposed to both the Angus bull and Jersey AI). What nova says is the reason I've often heard also. Whether it would happen three times without precedent... what was your feed situation the previous autumn? Just a thought. Welcome to the boards. [/QUOTE]
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