Any advice on kick starting heat cycles

[Alan]

Last calf of the season dropped yesterday morning, planning on putting the bull in with them on June 1st. I would like to move the calving season up three or four weeks. When I AI I use a synch that calls for CIDR's, lute and GnRH. If I do it I would like a simple one or two shot series? I also need to know when to expect them to start showing heat. Is it a simple as a shot of Lute and followed by a shot of GnRH in a few days? Thanks, Alan

 

[dun]

GnRH then 7 days later lute and they'll start cycling within 3-4 days following the lute.

 

[Alan]

Thanks Dun, just what I was hoping for!

Alan

 

[Jake]

GnRH then 7 days later lute and they'll start cycling within 3-4 days following the lute.

Any experience on how soon you can do this? Have 6 that are going to calf late but once they go to grass I'm not catching them again. Would have to give them a shot with a pretty young calf.

 

[dun]

GnRH then 7 days later lute and they'll start cycling within 3-4 days following the lute.

Any experience on how soon you can do this? Have 6 that are going to calf late but once they go to grass I'm not catching them again. Would have to give them a shot with a pretty young calf.

I'ld do it about a month after calving. Not because they wouldn;t cycle but to let the uterus get back into shape to carry another calf.

 

[cow pollinater]

Cidrs are the best way to cycle cows early. Lut only works if they're able to build a cl and most early lactation cows can't. The progesterone from the cidr is what makes them so effective as it builds a cl for the lut to work on.

 

[Howdyjabo]

research is saying feeding fat speeds up cycles

 

[TexasBred]

Loading them up with calories.

 

[wbvs58]

Loading them up with calories.

I agree, no use pushing them unless they already have the feed under their belts.
Ken

 

[Stocker Steve]

Cidrs are the best way to cycle cows early. Lut only works if they're able to build a cl and most early lactation cows can't. The progesterone from the cidr is what makes them so effective as it builds a cl for the lut to work on.

2X

An AI infomerical claimed that using cidr's increased income $123 per cow. They forgot about the slide and feed costs... They admitted there was some labor needed.

I view cidrs as a low cost way to get a group of quality AI heifer calves.