DRB said:
What synch programs are you guys using? I seem to get pretty good results with the timed AI, 7 day Co-synch + CIDR program (GnRh with CIDR, PG shot, TAI 52 hrs after PG).
Tried some sexed Capiche semen this year - will have to see how that goes.
What % do you get with your protocol? 52 hours TAI post pulling cidrs is earlier than I have ever heard of? Just wondering if 52 hours is better.
I cidred 26 head on a thurs evening and pulled cidrs on the following thursday, shot with Lute or Estrumate. bred 18 by Monday morning, had 4 non responders which I waited another 8 days & shot another shot of Estrumate, still no response by the following Wed. so I let those 4 out with the bull. Held 4 cows over a week past standing heat & put in embryos. So final tally was 22 out of 26 head that we put an embryo in or AIed.
Of the 4 non responders, 3 were first calf heifers that may not have been cycling b4 I started & I think that we may have missed the 4th cow. She's an older EXTdaughter.