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Artificial Insemination (AI) for Cattle
100% AI?
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<blockquote data-quote="SPH" data-source="post: 1516048" data-attributes="member: 20580"><p>We do timed AI for 1 heat cycle with our top early calving females and our yearling heifers then turn all the females out with the bulls for the summer. Our conception rate is usually pretty good but will vary from year to year but at least you get your females cycling and can tighten up your calving interval as the cleanup bulls usually get them the next time if they don't settle to the AI service. We're small enough we could technically do 100% AI if we wanted to but having a good cleanup bull on hand keeps that calving interval tight and our current herd sire which is a bull we kept from an AI mating throws just as good if not better calves than we get AI. He's in the pasture for his 4th breeding season right now and we got him collected this spring so we can use him AI in the future.</p><p></p><p>When we look at AI bulls the first place we look at is the maternal pedigree. Like to see some longevity and proven performance in the cows behind the bull. If you are breeding seedstock you want good cow lines behind the bull you are using.</p></blockquote><p></p>
[QUOTE="SPH, post: 1516048, member: 20580"] We do timed AI for 1 heat cycle with our top early calving females and our yearling heifers then turn all the females out with the bulls for the summer. Our conception rate is usually pretty good but will vary from year to year but at least you get your females cycling and can tighten up your calving interval as the cleanup bulls usually get them the next time if they don't settle to the AI service. We're small enough we could technically do 100% AI if we wanted to but having a good cleanup bull on hand keeps that calving interval tight and our current herd sire which is a bull we kept from an AI mating throws just as good if not better calves than we get AI. He's in the pasture for his 4th breeding season right now and we got him collected this spring so we can use him AI in the future. When we look at AI bulls the first place we look at is the maternal pedigree. Like to see some longevity and proven performance in the cows behind the bull. If you are breeding seedstock you want good cow lines behind the bull you are using. [/QUOTE]
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