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Cattle Boards
Breeding / Calving Issues
Timing your breeding to get a heifer calf
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 1761750" data-attributes="member: 968"><p>[USER=42463]@Travlr[/USER] is absolutely correct about male sperm being slender and fast - female fat & slow. Early breeding produces more females.</p><p>I have been breeding Simmental AI for 50+ years. The problem with breeding early (which I do in the first week or two of my breeding season), you may not get them pregnant. Male & slow females may arrive and the egg still hasn't been released. Later breeding is a higher pregnancy rate.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 1761750, member: 968"] [USER=42463]@Travlr[/USER] is absolutely correct about male sperm being slender and fast - female fat & slow. Early breeding produces more females. I have been breeding Simmental AI for 50+ years. The problem with breeding early (which I do in the first week or two of my breeding season), you may not get them pregnant. Male & slow females may arrive and the egg still hasn't been released. Later breeding is a higher pregnancy rate. [/QUOTE]
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Timing your breeding to get a heifer calf
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