
CIDR no GNRH
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- GURU
- Posts: 2792
- Joined: Sun Dec 02, 2007 8:29 am
- Location: Michigan
CIDR no GNRH
Any value to a CIDR if you don't start with GNRH? Is there a "protocol" for that? Just realized I'm running low 

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- GURU
- Posts: 3595
- Joined: Sun Mar 20, 2011 12:45 am
- Location: S.E. Queensland, Australia
Re: CIDR no GNRH
If they are cycling it should be OK but I would leave cidr in for at least 8 days to increase the period from when they were on heat last so PG more likely to work when cidr comes out.
Ken
Ken
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- Rancher
- Posts: 633
- Joined: Sun Apr 10, 2011 4:29 pm
- Location: Waterville, Iowa
Re: CIDR no GNRH
A lot of people don't use it at start. Your spending $10-12 on a Cidr + $25 on semen so I always say why skimp on the $2.75 shot of GnRH if you got it or can get asap? If heifers with unknown heats, I wouldn't waste my time putting them in mine. Especially if they are borderline young (under 14 months) GnRH seems to jump start them heifers.
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