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Cattle Boards
Artificial Insemination (AI) for Cattle
Flushing
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<blockquote data-quote="gizmom" data-source="post: 1497171" data-attributes="member: 13402"><p>I had not looked at this thread in awhile, sorry for not responding sooner. This breeding season we implanted 33 embryos. We didn't have any donors ready to flush so no fresh eggs just frozen. We manually palpated and called 21 safe with an ET calf or 63% conception a big drop from last years conception. In all honesty last year was unbelievable and we had no expectations of repeating that % again. The recips were managed the same as in past years. We manage the recips to be in good body condition and they are on a chelated mineral program. The one major difference between this year and last was we had a cow ready to flush last year so nine of the embryos used last year were fresh. This year we used 22 grade 1 eggs and 11 grade 2. We had 16 number 1's stick and 5 number 2's stick. If I did the math correctly that would mean a 72% conception rate on grade 1's and a 45% conception on grade 2's. Keep in mind this was using manual palpation we will dna test all calves to confirm. As far as setting up the recips we used the same protocol on recips as we use for our AI program. The 7 day timed protocol then eggs are pun in recips 7 days after they cycle. I think that covers everything.</p><p></p><p>Gizmom</p></blockquote><p></p>
[QUOTE="gizmom, post: 1497171, member: 13402"] I had not looked at this thread in awhile, sorry for not responding sooner. This breeding season we implanted 33 embryos. We didn’t have any donors ready to flush so no fresh eggs just frozen. We manually palpated and called 21 safe with an ET calf or 63% conception a big drop from last years conception. In all honesty last year was unbelievable and we had no expectations of repeating that % again. The recips were managed the same as in past years. We manage the recips to be in good body condition and they are on a chelated mineral program. The one major difference between this year and last was we had a cow ready to flush last year so nine of the embryos used last year were fresh. This year we used 22 grade 1 eggs and 11 grade 2. We had 16 number 1’s stick and 5 number 2’s stick. If I did the math correctly that would mean a 72% conception rate on grade 1’s and a 45% conception on grade 2’s. Keep in mind this was using manual palpation we will dna test all calves to confirm. As far as setting up the recips we used the same protocol on recips as we use for our AI program. The 7 day timed protocol then eggs are pun in recips 7 days after they cycle. I think that covers everything. Gizmom [/QUOTE]
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