Lutalyse advice

I did something dumb this morning and I need advice.

I have 2 show heifers and a show bull, all 11 months old. I was in a hurry to get a heifer clipped this morning. The bull got in with the other heifer. She wasn't showing any signs of heat so I, like a fool, left him in there and took the calf to get clipped. I come back an hour and a half later and the bull is mounting the heifer. Way too young to breed!

I got them separated. The heifer wasn't holding her tail up but I don't know what happened while I was gone. She is very much in heat now (standing and trying to mount the other heifer).

I show these three animals a week from today at a fair.

I'm wanting to give this heifer a shot of lutalyse. When's the best time to give it after a breeding? Should I give it before or after the fair? If I give her the shot before the fair, will it affect her at the show?

Just want to make sure I'm doing everything right. She's a sweet little calf and I just want make sure I'm doing everything right. Thanks in advance.

"For Intramuscular Use for Abortion of Feedlot and Other Non-Lactating Cattle. LUTALYSE is indicated for its abortifacient effect in feedlot and other non-lactating cattle during the first 100 days of gestation. Inject a dose of 25 mg intramuscularly. Cattle that abort will abort within 35 days of injection."

http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=67b69d3a-4225-472f-af28-6af64e31efb1

Lut causes ovulation if a Corpus Luteum is present. If you hit her up right now it wont do much, better to give her time to develop one. A few months of pregnancy wont hurt her development. Another option is to wait 28 days and do a Biopryn blood pregnancy test. It is just 2cc out of her tail and most labs will get you the results within the week. We have great success with them.

Good luck

I think it's best to wait 2 weeks before giving the shot .

Giving Lut now will have zero effect, you will need to wait about 10 days (2wks is fine also) and give 5ml Lut.  I would probably give as soon as possible rather than waiting a couple months as said in earlier post.  Remember she should come in heat 2-5 days after injection (ideally 72hrs) so you can use that to plan around any shows

Thank you so much, everyone! I'll wait until I bring her home from the fair and that will be day 10+

Being you know she has been bred I would wait 10 days give her 5ccs wait 10 more give her 5 more. I started doing this after we has ten replacements stay bred after luteing them.

Yes that is very good advice, I thought of that afterwards also

Thanks again! I can do that!