Cow should have already calved

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cajun4212
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Cow should have already calved

Postby cajun4212 » Wed Sep 27, 2017 1:47 am

I have a cow that was AI'd and the 283 day gestation period had her calving on 9/15. I know older cows (she's seven) will sometimes calve a little past the 283 days, but at what point should I be concerned? She's never calved late.
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Re: Cow should have already calved

Postby Bright Raven » Wed Sep 27, 2017 6:46 am

cajun4212 wrote:I have a cow that was AI'd and the 283 day gestation period had her calving on 9/15. I know older cows (she's seven) will sometimes calve a little past the 283 days, but at what point should I be concerned? She's never calved late.


Today is 295 days of gestation. The longest I have had is 290. Does she show any signs? Swollen tight udder, loose vulva, discharges from vulva? If not, she did not stick to the AI!
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Re: Cow should have already calved

Postby MRRherefords » Wed Sep 27, 2017 6:50 am

Was she with any other bull at all? If so, she probably took to him.
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Re: Cow should have already calved

Postby Son of Butch » Wed Sep 27, 2017 7:38 am

304 days is the cut off.
Just because she was serviced doesn't mean she was ever pregnant or if she was may have reabsorbed or aborted.
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Re: Cow should have already calved

Postby lithuanian farmer » Wed Sep 27, 2017 3:23 pm

We get a few calves every year past 290 days. the longest gestation we had was 303 days. Look how cow looks, if she's preparing. She definitely should, if she's pregnant.
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Re: Cow should have already calved

Postby cajun4212 » Wed Sep 27, 2017 5:46 pm

She definitely took from the AI, we had an ultrasound done. She's starting to bag up, but no vulva swelling or discharge. I may give it a few more days before I call the vet.
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Re: Cow should have already calved

Postby TCRanch » Wed Sep 27, 2017 6:31 pm

Seems like bull calves take longer to cook. I agree with giving her a few more days but after that if she doesn't start springing/showing obvious signs I'd put on a glove and make sure the calf is in position, etc.
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Re: Cow should have already calved

Postby dun » Wed Sep 27, 2017 6:46 pm

2 weeks early or 2 weeks late is still on time. Different breeds have different gestation periods. Angus is 283 and is taken as standard but Hereford and Simmenthal at least to my knowledge are different then that
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Re: Cow should have already calved

Postby Bright Raven » Wed Sep 27, 2017 6:54 pm

dun wrote:2 weeks early or 2 weeks late is still on time. Different breeds have different gestation periods. Angus is 283 and is taken as standard but Hereford and Simmenthal at least to my knowledge are different then that


dun, Simmental is 285
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Re: Cow should have already calved

Postby Son of Butch » Wed Sep 27, 2017 7:11 pm

Rare but possible, prolonged gestation caused by fetal mummification. I've only seen it twice in 40 years, neither cow was mine. I was afraid one time for one of mine, but she calved with a large healthy bull calf at 300 days.

Mummified calf - fetus dies, but instead of being expelled like most abortions, corpus luteum persists in ovary, so cow does not come in heat and the gestation can persist indefinitely.

IF the cow has only been serviced once with no chance of later preg date, after 305 days I would reach in to check for abnormalities and give her a shot of Lutalsye. The calf/mummified fetus will be expelled within 48 hours. You will want to have her caught to assist calving/expelling the fetus as it may come out whole or in pieces.
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Re: Cow should have already calved

Postby muleskinner » Fri Sep 29, 2017 1:50 pm

I think the longest any of our Herefords have went is around 290 days.
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Re: Cow should have already calved

Postby farmboy80 » Mon Oct 02, 2017 8:25 am

cajun4212 wrote:She definitely took from the AI, we had an ultrasound done. She's starting to bag up, but no vulva swelling or discharge. I may give it a few more days before I call the vet.





Any updates? Has she calved?
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Re: Cow should have already calved

Postby BK9954 » Sun Oct 08, 2017 3:57 pm

Had a brangus heifer last year went 298 days with her first calf from AI. Angus bull calf we wound up having to pull. That was even after cutting her feed for the last 3 months.
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Son of Butch
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Re: Cow should have already calved

Postby Son of Butch » Tue Oct 10, 2017 3:14 pm

cajun4212 wrote:I have a cow that was AI'd and the 283 day gestation period had her calving on 9/15.
I know older cows (she's seven) will calve past the 283 days, but at what point should I be concerned?

Now.... 308 days as of today
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Re: Cow should have already calved

Postby slick4591 » Tue Oct 10, 2017 4:30 pm

We may never know...
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