Stocker Steve
Well-known member
Seems to be a bias towards using CIDR in a timed AI program with heifers.
What is the problem with the GnRh + PG sync often used with cows ?
What is the problem with the GnRh + PG sync often used with cows ?
Till-Hill":3afwdrlt said:If you know for sure your heifers are cycling GnRH-lute like and ovsynch will work.
I don't know if you can heat detect but here is my program and we like it.
Monday May 9th sort heifers off lute and sticker to observe standing heats and AI
Non-responders May 16th GnRH + Cidr
May 22nd Lute
May 23rd Pull cidr
TAI all+GnRH May 25th.
We settled all in that 16 day window last year. We use same program 3 weeks later on the cows. For me it lightens up the work load and gets some that respond to lute out to pasture sooner.
Lucky_P":239tafqy said:steve. You can move those late calvers up some by putting in a CIDR at 20 days post calving... for 5-7 days, the lute & pull.