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AI'd my first cow today.
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<blockquote data-quote="dun" data-source="post: 124660" data-attributes="member: 34"><p>I had misread the post, what a shock that is!</p><p>I had read it as asking about conception rates, not calf gender.</p><p>The earlier before ovulation you breed the more heifers you will get, closer to ovulation you get more bulls.</p><p>That said, ours have alwasy run right at 50:50. </p><p>The reason the timing matters is that the male sperm are faster swimmers and shorter lived then female. The boys get there first and are waiting for the egg. But after a time they start to weaken/die and the girls show up on the scene.</p><p></p><p>dun</p></blockquote><p></p>
[QUOTE="dun, post: 124660, member: 34"] I had misread the post, what a shock that is! I had read it as asking about conception rates, not calf gender. The earlier before ovulation you breed the more heifers you will get, closer to ovulation you get more bulls. That said, ours have alwasy run right at 50:50. The reason the timing matters is that the male sperm are faster swimmers and shorter lived then female. The boys get there first and are waiting for the egg. But after a time they start to weaken/die and the girls show up on the scene. dun [/QUOTE]
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AI'd my first cow today.
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