PG when Separating Bulls and Heifers at Weaning

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Bright Raven
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PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 9:54 am

Who else is administering a Prostaglandin to heifers (7 to 8 months) after separating from the same age group of bull calves?

I have seen a couple heifers in heat at 5 and 6 months of age. The heifer group of fall calves were running with bull calves that were quite precocious. I doubt the bull calves were fertile but as a precaution, I gave each heifer a shot of Lutalyse until I ran out and will do the rest tomorrow.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Supa Dexta » Mon May 29, 2017 10:37 am

Best to wait 2 weeks after you separate and then lute them.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 10:40 am

Supa Dexta wrote:Best to wait 2 weeks after you separate and then lute them.


I should have stated that. They were separated 16 days ago.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Supa Dexta » Mon May 29, 2017 10:45 am

Then yes - I do it. Got tired of calving 14mo old heifers. Some of them raised calves and became cows - but it knocked the good out of them, and they never did raise a calf like they should have, even after several years and several kicks at the can.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Nesikep » Mon May 29, 2017 11:13 am

I try to separate the replacement heifers out from any bulls at about 5 months.. so far it's worked well for me.. I keep a pretty close eye on them, if I did see the bull hanging out with one I'd lute her 2 weeks later though.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 11:27 am

Nesikep wrote:I try to separate the replacement heifers out from any bulls at about 5 months.. so far it's worked well for me.. I keep a pretty close eye on them, if I did see the bull hanging out with one I'd lute her 2 weeks later though.


They have been weaned for a couple months but were all running together in the weaning pasture. Then 16 days ago, I put the bulls in the bull pen. I wonder at what age it is likely to expect a bull to become fertile?
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Supa Dexta » Mon May 29, 2017 1:37 pm

Have seen my own bulls riding with their diks out @ 7mo - if they're shooting anything potent or not, they're still going through the motions.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby TCRanch » Mon May 29, 2017 1:45 pm

We pull all bulls at least 4 weeks prior to weaning and every heifer gets a shot of Lute. Not only can a 7 month old bull successfully breed, so can a 7 month old bull with only one nut. Got the t-shirt; it was a painful learning experience.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 2:00 pm

Supa Dexta wrote:Have seen my own bulls riding with their diks out @ 7mo - if they're shooting anything potent or not, they're still going through the motions.


I see that too. Going to finish giving lutalyse to the others tomorrow. I thought maybe I was being over concerned.

Thanks.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby dun » Mon May 29, 2017 3:09 pm

At booster shot time 2-3 weeks post calving we give a shot of lute and dex
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 3:15 pm

dun wrote:At booster shot time 2-3 weeks post calving we give a shot of lute and dex


Should I be giving dex at the same time as PG?
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Re: PG when Separating Bulls and Heifers at Weaning

Postby dun » Mon May 29, 2017 3:17 pm

There is a time frame after pregnancy starts that just lute isn;t effective. We just make sure it will be open by giving the dex. When we sell feeder heifers in the programs we use we have to certify them open. The penalty for them bing bred is pretty substantial. Or so I have been told by a couple of people that got caught with bred heifers in the program
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Mon May 29, 2017 3:20 pm

dun wrote:There is a time frame after pregnancy starts that just lute isn;t effective. We just make sure it will be open by giving the dex. When we sell feeder heifers in the programs we use we have to certify them open. The penalty for them bing bred is pretty substantial. Or so I have been told by a couple of people that got caught with bred heifers in the program


Thank you. I don't think these could be very far into a pregnancy.
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Re: PG when Separating Bulls and Heifers at Weaning

Postby dun » Mon May 29, 2017 4:33 pm

I don;t recall what the magic number is
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Re: PG when Separating Bulls and Heifers at Weaning

Postby Bright Raven » Wed May 31, 2017 8:08 am

dun wrote:I don;t recall what the magic number is


dun,

I picked up more Lutalyse yesterday. Vet said did not need dex unless I suspected the potential pregnancies were 3 months old.
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