Will outdated CIDRs still be effective? I'm going to have to get a new pack, but hate to have to buy another pack for just four more. College student and funds are tight. Also, I have been time breeding non responsive cows at 66 hours post CIDR removal with moderate success. Does anyone else have a different/more successful TAI protocol?
CIDRs
- Thread starter wv
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CAB
Well-known member
The out dated cidrs will still be good. Don't worry about that. I think that you may be rushing the non responsive cows a little. I usually breed non responsive cows @ 84 hours past. Others hopefully will chime in. Brent
HAFarm
Well-known member
we try to breed at around 80 hours
LN
Well-known member
I think the CIDRs should still be fine. For TAI the protocol says 72-84 hr.
jtho3c
Active member
The component that makes CIDRS work is progesterone. This is a hormone that does not last forever. I would NOT use CIDRS more than twice, and never after the label says they expire.
