tnfarmboy67
Well-known member
Well I bought 4 registered Angus cow calf pairs, and plan to Ai the cows in a few weeks. Which GnRH drug and which PG drug do most of you use?
Which Ai Drugs?
- Thread starter tnfarmboy67
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I used Factrel for gnrh and Lute for PG last year, may go back to Cystorylin this year, no particular reason other than doses per bottle.
If you are only doing 4, doses would play a part.
I do like Lute better because in my mind using 5cc vs 2cc on the Estrumate gives a little more room for error if a drop seeps out.
If you are only doing 4, doses would play a part.
I do like Lute better because in my mind using 5cc vs 2cc on the Estrumate gives a little more room for error if a drop seeps out.
cow pollinater
Well-known member
Factrel is the only one on either side that I don't like. They're all supposed to be equal but I test that with thousands of observations and factrel is the one that sticks out as under-performing to me.
boondocks
Well-known member
For timed AI, we use CIDRs, GnRH (at insertion of CIDR and again at breeding), and Lute (when we pull CIDRs after a week).
For what its worth here is what we will be using this year:
Protocol is as follows
14 day for heifers
Thursday Nov 19th
Place Cidrs in heifers.
Thursday Dec 3rd
Remove Cidrs
Saturday Dec 19th @ 6:00pm
Give injection PGF (Lutalyse ,Estrumate, Estrogen-Plan) see label for dose.
Tues Dec 22
Breed heifers after cows. (10:00am)
Give 2cc dose Gnrh ( Cystoraline,factrel ,or Fertygel)
All injections w/1 1/2 " needle deep muscle.
7 Day cidr for Cows.
Saturday Dec 12
Place Cidrs w/injection Gnrh2cc
Saturday Dec 19
Remove Cidrs w/injection PGF.
@ 5:30 pm
Tuesday Dec 22
Breed cows 7:00 w/injection Gnrh.
Like I said for what its worth this is the protocol we will be using this year.
gizmom
Protocol is as follows
14 day for heifers
Thursday Nov 19th
Place Cidrs in heifers.
Thursday Dec 3rd
Remove Cidrs
Saturday Dec 19th @ 6:00pm
Give injection PGF (Lutalyse ,Estrumate, Estrogen-Plan) see label for dose.
Tues Dec 22
Breed heifers after cows. (10:00am)
Give 2cc dose Gnrh ( Cystoraline,factrel ,or Fertygel)
All injections w/1 1/2 " needle deep muscle.
7 Day cidr for Cows.
Saturday Dec 12
Place Cidrs w/injection Gnrh2cc
Saturday Dec 19
Remove Cidrs w/injection PGF.
@ 5:30 pm
Tuesday Dec 22
Breed cows 7:00 w/injection Gnrh.
Like I said for what its worth this is the protocol we will be using this year.
gizmom
redcowsrule33
Well-known member
I have had excellent results using the 7 day CIDR protocol for cows with Cystorelin (GnRH) and Estrumate (PGF).
pdfangus
Well-known member
I like the Michigan G6G protocol. get good results with it using GNRH and PGF2A
it is more trips thru the chute but my cattle pretty well auto load into the chute.
I weighed heifers this past weekend....weigh them every 28 days and five of the six were standing at the back of the scale waiting their turn....I took a picture of a heifer waiting behind the scale but it is on the computer at home....
it is more trips thru the chute but my cattle pretty well auto load into the chute.
I weighed heifers this past weekend....weigh them every 28 days and five of the six were standing at the back of the scale waiting their turn....I took a picture of a heifer waiting behind the scale but it is on the computer at home....
