Lutalyse

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Lutalyse

Post by 5S Cattle » Thu Aug 15, 2019 9:29 am

At what stage of a pregnancy is lute not effective anymore? I can’t remember offhand. I have some heifers that may have got bred by the neighbors bull ~3 months ago.



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Re: Lutalyse

Post by Son of Butch » Thu Aug 15, 2019 10:03 am

after 90 days.... 2nd trimester.... the fine print says 100 days, but I use 90 to be sure.

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Re: Lutalyse

Post by Bigfoot » Thu Aug 15, 2019 10:40 am

I used to background a lot of heifers. You'd better lute those things the day they arrive. Seen many aborted I'd guess to be well in excess of 90-100 days. Infact only seen it not work on one, out of hundreds I luted.
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Re: Lutalyse

Post by Nesikep » Thu Aug 15, 2019 10:47 am

I believe adding dex to it will help on later ones.
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Re: Lutalyse

Post by 5S Cattle » Thu Aug 15, 2019 12:07 pm

Thanks folks!

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Re: Lutalyse

Post by 5S Cattle » Thu Aug 15, 2019 12:15 pm

Looks like it was around the end of May.

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Re: Lutalyse

Post by Buck Randall » Thu Aug 15, 2019 7:56 pm

Cows can abort from a lutalyse shot at any stage of pregnancy, but the reliability goes down a lot after the first trimester.

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