Hauling and AI
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BCCC
Well-known member
I have always been told between 7-30 days you should not haul your cattle, as it could cause them to abort.
Jill
Well-known member
There are a lot of theories on this, I don't really have an answer, I know you aren't supposed to change diet or pasture for 30 days, but we haul our recips 21/2 hours back home after they are implanted and we have an incredible conception rate.
Cattledog
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Jill said:
I'm with you. We get around 75 percent on embryo implantation and we have about a 2 hour drive to and from.
Cowboy
Well-known member
Moving or hauling A-I cattle day of breeding is more critical to success than the ET cows are for this reason.
An A-I cow has yet to ovulate, and ANY type of hightened anxiety will release adrenilen. This is NOT good for sperm transport or ovulation timing.
An Emryo cow has ovulated over a week before, and you are putting a living viable mutiple cell embryo in her uterus. The adrenalin factor is also a reason to be carefull - but in a different way. A VERY upset and unrully cow at this timing will release the adrenalin -- but in her case -- this will cause a signal internally for the release of prostoglandins from the uterin lining. For themost, this is minimal and has little affect.
What WILL affect you is a change of diet for the first 45 days ( Or until the embryo is firmly attached to the cotoledon in the uterus) To prevent premature abortions, aclimate your recips to the environment wher ethey will be for thenext 45 days. IE -- if prepped in a dry lot, keep the ones that fail to return to heat there for 2 heat periods after transfer. If prepped and synced on grass, you are good to go right back. Reason -- rapidly fgrowing grass in early spring will have an elevated level of Estrogen -- the very hormone you DO NOT want to have in a pregnant cow unless already aclimated to it.
Bottom line -- ET dry lot -- STAY dry lot.
I don't reccomend hauling cows to the vet to have them bred and then hauling them back same day. A-I cows need 48 hours to ovulate, fertilize and transport the egg to the uterus. Stress at this itme is NOT good. A different scenario than ET totally.
I do hope this helps all who were curious. Of course I am not the final word here -- but I know what works after all these years.
Terry
An A-I cow has yet to ovulate, and ANY type of hightened anxiety will release adrenilen. This is NOT good for sperm transport or ovulation timing.
An Emryo cow has ovulated over a week before, and you are putting a living viable mutiple cell embryo in her uterus. The adrenalin factor is also a reason to be carefull - but in a different way. A VERY upset and unrully cow at this timing will release the adrenalin -- but in her case -- this will cause a signal internally for the release of prostoglandins from the uterin lining. For themost, this is minimal and has little affect.
What WILL affect you is a change of diet for the first 45 days ( Or until the embryo is firmly attached to the cotoledon in the uterus) To prevent premature abortions, aclimate your recips to the environment wher ethey will be for thenext 45 days. IE -- if prepped in a dry lot, keep the ones that fail to return to heat there for 2 heat periods after transfer. If prepped and synced on grass, you are good to go right back. Reason -- rapidly fgrowing grass in early spring will have an elevated level of Estrogen -- the very hormone you DO NOT want to have in a pregnant cow unless already aclimated to it.
Bottom line -- ET dry lot -- STAY dry lot.
I don't reccomend hauling cows to the vet to have them bred and then hauling them back same day. A-I cows need 48 hours to ovulate, fertilize and transport the egg to the uterus. Stress at this itme is NOT good. A different scenario than ET totally.
I do hope this helps all who were curious. Of course I am not the final word here -- but I know what works after all these years.
Terry
Rocky Hill Simmental
Well-known member
Last year we hauled my simmental heifers to the bull. We'd bring them back a day after the bull bred them and 21 days later, they'd be back in heat. We found that if we left them there for a few weeks after the bull bred them, they'd be pregnant when we brought them home. They'd also calve near the time they'd be due when we dropped them off.
This year we hauled the bull to the heifers/cows and every single one of them took up first time they were bred (Haven't preg checked them yet but it's been a month and a half). After this, I assumed that it was the hauling that caused the poor conception rates in the heifers.
I'd imagine the same is true with AI-ing too.
This year we hauled the bull to the heifers/cows and every single one of them took up first time they were bred (Haven't preg checked them yet but it's been a month and a half). After this, I assumed that it was the hauling that caused the poor conception rates in the heifers.
I'd imagine the same is true with AI-ing too.
drl
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Cowboy said:
LazyGLowlines
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Cowboy...as always good information. We're now trying to do everything at home, and maybe that's why we've been getting such a good conception rate on ETs.
Jeferin
Well-known member
Very interesting question.
Last July on a Wedsday night I bred my 5 year old Angus. Thursday morning she was put on the trailer to show at our county fair. I had one fan blow directly at her the entire time. Friday was the show and by Friday late afternoon she bled off. My semen sales rep came through the barn and I told him I just breed her. I asked him what my chances were that she would stick with this much stress. He said probably less than 50%. ugh!
Well she stuck and a week ago I was awarded with twin heifer calves that are doing very well.
Obviously you have to have some luck.
Last July on a Wedsday night I bred my 5 year old Angus. Thursday morning she was put on the trailer to show at our county fair. I had one fan blow directly at her the entire time. Friday was the show and by Friday late afternoon she bled off. My semen sales rep came through the barn and I told him I just breed her. I asked him what my chances were that she would stick with this much stress. He said probably less than 50%. ugh!
Well she stuck and a week ago I was awarded with twin heifer calves that are doing very well.
Obviously you have to have some luck.
DCC_Cattle
Well-known member
I have bred cows and heifers shortly before hauling them to a show and most of the time they stay bred.
