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Artificial Insemination (AI) for Cattle
How many hours after pulling CIDR?
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<blockquote data-quote="SPH" data-source="post: 1613982" data-attributes="member: 20580"><p>We observe for heat and breed after we have observed the female in standing heat. Typically they can start coming in heat 48 hours after you pull CIDRS. Our rule of thumb has been if you see standing heat in the morning breed that evening, if seen in the evening breed the next morning. I guess if you do the math on that if they start coming in heat at 48 hours that is breeding them anywhere in the 60+ hour range which is within the 54-72 hours I've seen mentioned above. We also put the stickers on that rub off when a female is ridden which can also help out when there is a lot of action going on all at once. We're also at the mercy of our AI tech being available too, he works for a big operation just down the road from us so he typically likes to stop in first thing in the morning on his way in or on his way home in the evening.</p><p></p><p>Everyone has their own methods that seems to work for them so go with what you think works best for your operation. I know we won't force breed a female if we don't observe heat as we aren't going to waste a straw of semen that we paid for on what will likely not result in a conception. Typically those we don't observe in heat get bred 3 weeks later by the cleanup herd bull so at the very least synchronization seems to be helping us tighten up our calving windows as we'll have the bulk of our calves within the timed AI and next heat cycle now for those that we did synch up.</p></blockquote><p></p>
[QUOTE="SPH, post: 1613982, member: 20580"] We observe for heat and breed after we have observed the female in standing heat. Typically they can start coming in heat 48 hours after you pull CIDRS. Our rule of thumb has been if you see standing heat in the morning breed that evening, if seen in the evening breed the next morning. I guess if you do the math on that if they start coming in heat at 48 hours that is breeding them anywhere in the 60+ hour range which is within the 54-72 hours I've seen mentioned above. We also put the stickers on that rub off when a female is ridden which can also help out when there is a lot of action going on all at once. We're also at the mercy of our AI tech being available too, he works for a big operation just down the road from us so he typically likes to stop in first thing in the morning on his way in or on his way home in the evening. Everyone has their own methods that seems to work for them so go with what you think works best for your operation. I know we won't force breed a female if we don't observe heat as we aren't going to waste a straw of semen that we paid for on what will likely not result in a conception. Typically those we don't observe in heat get bred 3 weeks later by the cleanup herd bull so at the very least synchronization seems to be helping us tighten up our calving windows as we'll have the bulk of our calves within the timed AI and next heat cycle now for those that we did synch up. [/QUOTE]
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How many hours after pulling CIDR?
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