CIDR no GNRH

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angus9259
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CIDR no GNRH

Postby angus9259 » Thu Nov 09, 2017 4:02 pm

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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wbvs58
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Re: CIDR no GNRH

Postby wbvs58 » Thu Nov 09, 2017 7:31 pm

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
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Till-Hill
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Re: CIDR no GNRH

Postby Till-Hill » Thu Nov 09, 2017 8:03 pm

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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