Quick Question About AI and Due Dates

[CollCrofter]

Got the first ped Lim due now. She was AI'd on the 17th and 18th of August and her 279 days was the 23rd and her 287 days is Sunday... She looks a wee bit off to me yet. This is my first time with AI so the first time Ive had an accurate due date (ish). When would you boys and girls that do a lot of AI'ing start to get worried??? I'm 100% overthinking but any tips would be great. Cheers

 

[HillLuing]

Was she just AI'd the once over those 2 days?? Or was she done on another cycle also 21 days later???

 

[CollCrofter]

She was AI'd on the morning of the 17th and the morning of the 18th after being synced. Did 4 in total, 3 returned and ran with a Burnbank bull and she took. Just AI'd those two dates and then scanned in-calf

AI'ing her again wasn't an option as a mate came to the island to do it for me over a weekend

 

[HillLuing]

Should be fairly accurate then, and even if she is late overdue she would start to bag up anyhow!

At this stage of you put her in crush and have a feel you will be able to feel easily if there is a calve

 

[Fergieman]

Did she run with bull after being scanned? She could of lost the embryo and been served again. If she is not bagged up now that is most likely

 

[AGN76]

Relax, you could have another 2 weeks yet! 304 days the longest gestation we've had here. Born unassisted.

 

[C.J]

Relax, you could have another 2 weeks yet! 304 days the longest gestation we've had here. Born unassisted.

Had a R.Ferdinand 12th calf go 305 days 30 years ago.

Our South Devons are averaging 292 so far this year.

 

[CollCrofter]

Thanks for the replies

I actually waited until the vet could get here to scan them before they went near a bull as at the time the bull wasn't available so she is 100% in to the AI.

Giving plenty signs yesterday, up and down, pawing at herself, constant tail thrashing, bags tight too so I thought she would start last night but not yet. I hope she isn't two weeks away cause she looks pretty big! I'm finding it harder with her when compared to the cross simmy heifers where you will be pretty definite when they'll calve with a good study but as I say, I'm definitely overthinking!

It looks likes folks average gestation is far greater than the 'most common' 279 to 289 days. I guess the lesson here is, look at the cow, not a calving app!!!

 

[C.J]

Looking back at 1993 records - we were using Limousin AI bulls on our plainer S.D cows.

300 days seemed to be the average and 3 or 4 went to 307 days.

 

[Johngee]

What is she in calf to?

 

[Davy_g]

I’m a blonde breeder. 292 days for heifer calves and 295 for bull calves is my stock bulls average over the last two years.
I have had rare cases in the past of 310 days.
Manage the diet for the last two to 3 months months, straw and minimal grass or silage plus minerals in whatever form suits you.

Get a MooCall calving sensor too.

 

[CollCrofter]

What is she in calf to?

Ampertaine Magnum

 

[CollCrofter]

I’m a blonde breeder. 292 days for heifer calves and 295 for bull calves is my stock bulls average over the last two years.
I have had rare cases in the past of 310 days.
Manage the diet for the last two to 3 months months, straw and minimal grass or silage plus minerals in whatever form suits you.

Get a MooCall calving sensor too.

I've got a MooCall but she's up in a field next to the shed so I can halter her if need-be but the signal isn't great unfortunately. Although I'm told they can work off minimal signal strength so I might just put it on her anyway

 

[Treecreeper]

295+ days not uncommon with my lims to our senior bull, a few go from no signs at all to dropping in 36hrs

 

[Limcrazy]

Next sunday would be normal enough. 294 days. Bull calf could be during the week after.

 

[CollCrofter]

She calved this evening in no time herself

 

[Wolds Beef]

Lincoln Reds are about 5 days longer than the book!! Some good friends have done some females to top bulls in the breed.
WB

 

[choochter]

My bazadaise average 284 for heifers calves and 287 for bull calves. I work on 284 days gestation length.
Lovely calf!

 

[CollCrofter]

Better photo of the lad. First ever pedigree calf born on the place so hopefully the first of many. Not too bad for a heifers calf, see what he turns into!?

?

 

[choochter]

I've never had much success with AI with synchronising but understand why, living on an island, you would need to do it. Have good success with AI with observed natural heats.