First time doing embryo question.

Got a calving or breeding question? Get an answer.
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First time doing embryo question.

Post by Redgully » Thu Oct 17, 2019 12:29 am

So today we put in two embryos. First one slipped in perfectly and my technician was really happy, second one went well but when he pulled gun out there was blood on the end. He was quite surprised to see it and told me unlikely she will take. They are both heifers. Wondering what everyones experience and thoughts are. I know it is bad to see blood on gun during A.I. because blood is a spermacide. But he said blood wont kill embryo but because of the inflamation the embryo wont attach.



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Re: First time doing embryo question.

Post by wbvs58 » Thu Oct 17, 2019 3:38 am

Are they virgin heifers, might have got it through the vagina on way in or out???

Ken

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Re: First time doing embryo question.

Post by Redgully » Thu Oct 17, 2019 4:39 am

They are virgin heifers, but i think the technician feels it's from the horn. Guess i will know more in 14 days.

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Re: First time doing embryo question.

Post by polledbull » Tue Oct 22, 2019 10:05 pm

usually you would not use virgin heifers as recips for ET work

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Re: First time doing embryo question.

Post by Redgully » Wed Oct 23, 2019 12:33 am

polledbull wrote:
Tue Oct 22, 2019 10:05 pm
usually you would not use virgin heifers as recips for ET work
Really, my vet said they are the best to use. Interesting. 9 days to go to see where I'm at.

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Re: First time doing embryo question.

Post by WinterSpringsFarm » Wed Oct 23, 2019 5:03 am

Redgully wrote:
Wed Oct 23, 2019 12:33 am
polledbull wrote:
Tue Oct 22, 2019 10:05 pm
usually you would not use virgin heifers as recips for ET work
Really, my vet said they are the best to use. Interesting. 9 days to go to see where I'm at.
From the calving ease aspect, and not knowing how well they will mother and milk are reasons why I won't put eggs in heifers.

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Re: First time doing embryo question.

Post by Redgully » Wed Oct 23, 2019 8:44 am

WinterSpringsFarm wrote:
Wed Oct 23, 2019 5:03 am
Redgully wrote:
Wed Oct 23, 2019 12:33 am
polledbull wrote:
Tue Oct 22, 2019 10:05 pm
usually you would not use virgin heifers as recips for ET work
Really, my vet said they are the best to use. Interesting. 9 days to go to see where I'm at.
From the calving ease aspect, and not knowing how well they will mother and milk are reasons why I won't put eggs in heifers.
That makes perfect sense in those aspects. But these are red poll heifers so milk and mothering are not an issue. Calving ease should be fine but i agree this would be my only concern. Although speckle park embryos should not make big calves.

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Re: First time doing embryo question.

Post by bse » Wed Oct 23, 2019 1:11 pm

Not sure Red Poll automatically makes them milk or mother, maybe! You may have never seen a heifer jump up from calving, not know what just happened and just move on, bottle or dead calf.
4 year old is the youngest I'll make a recip, 2 calves, then I have some idea about mothering and milking, much prefer 5 to 8 yr olds. To much money involved for me to chance a heifer. Just me

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Re: First time doing embryo question.

Post by Redgully » Thu Oct 24, 2019 2:43 am

bse wrote:
Wed Oct 23, 2019 1:11 pm
Not sure Red Poll automatically makes them milk or mother, maybe! You may have never seen a heifer jump up from calving, not know what just happened and just move on, bottle or dead calf.
4 year old is the youngest I'll make a recip, 2 calves, then I have some idea about mothering and milking, much prefer 5 to 8 yr olds. To much money involved for me to chance a heifer. Just me
I agree with what you're saying. Too much effort and money goes into embryos to take any risks. I had a Guernsey heifer and a simmental cross heifer go awol after calving and a few others be poor mothers. But never a red poll, we have had red polls and crosses here for 46 years and never had one mothering issue. And always plenty of milk, some would say too much at times.

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Re: First time doing embryo question.

Post by Jeanne - Simme Valley » Thu Oct 24, 2019 10:12 am

I also use heifers - or cows. Embryologists like heifers because you don't have "left-over calving infections".
All my heifers have years of history in my herd. I would never be afraid to use one.
About 40 years ago, we had a halfblood heifer that did not want her calf. Never has happened again. Hopefully I'm not jinxing myself. I know it happens, but I think mothering ability is heritable.
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Re: First time doing embryo question.

Post by Jeanne - Simme Valley » Thu Oct 24, 2019 10:13 am

Also, remember conception rate is considerably lower with embryos vs AI breeding.
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Re: First time doing embryo question.

Post by ccr » Thu Oct 24, 2019 8:01 pm

Jeanne - Simme Valley wrote:
Thu Oct 24, 2019 10:12 am
I also use heifers - or cows. Embryologists like heifers because you don't have "left-over calving infections".
All my heifers have years of history in my herd. I would never be afraid to use one.
About 40 years ago, we had a halfblood heifer that did not want her calf. Never has happened again. Hopefully I'm not jinxing myself. I know it happens, but I think mothering ability is heritable.
one in 40 years sounds like pretty good odds, at least with your cattle.
i know as much about this as anything else i don't know much about
happiness is healthy cattle

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Re: First time doing embryo question.

Post by Redgully » Wed Oct 30, 2019 11:55 pm

Well I'm at 14 days post implant and all is quiet. They look very relaxed eating and chewing cud. I know its not certain until preg test but feeling very happy for now.

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Re: First time doing embryo question.

Post by Jeanne - Simme Valley » Thu Oct 31, 2019 6:10 am

If both took, that is awesome - beating the odds. Do these cows normally have a 21 day cycle? Fingers crossed!
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Re: First time doing embryo question.

Post by Redgully » Thu Oct 31, 2019 6:33 am

Jeanne - Simme Valley wrote:
Thu Oct 31, 2019 6:10 am
If both took, that is awesome - beating the odds. Do these cows normally have a 21 day cycle? Fingers crossed!
They do normally go 20-21 days but because i had to synchronise them I'm hoping they still stick to that. I was a little confused on synchronisation. I gave them a shot of lutylise late saturday and another first thing sunday morning. I was hoping to bring them in tuesday or wednesday. One was naturally due (21 days) wednesday and the other friday and they both came in thursday. I can preg test 35 days but hoping to push it out to 55 and get a sex too.

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