4 Fun-The Calving Time Mystery: Herd Bull or AI?

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Calving Mystery: AI, Herd Bull or Other?

  • AI- Shiver

    Votes: 27 62.8%
  • Angus Herd Bull

    Votes: 5 11.6%
  • Neighbors Long Horn

    Votes: 2 4.7%
  • Jack- Their Donkey

    Votes: 9 20.9%

  • Total voters
    43

RSC

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Shelby, NE
I had a friend that called me and he's trying to figure out what the heifer calf that was born last night is out of AI or Moderate angus herd bull. Down the road he will probably check DNA but for fun I thought I would  speculate.   He pulled a heifer calf breach  last night and she's either 14 days late A.I.'d to Shiver or 7 days early to his moderate PB Angus cleanup bull.  The cow is a very moderate blue roan(Very Colored up) cow out of Moody Blues times a Sugar Ray cow.  He has flushed her several times and the calves generally come around a week late.  She had a Hard Core heifer naturally once that was solid black and about 7 days late.

The calf was like I said breach and around 85-90 lbs.  She is a very colored up blue roan.  She has plenty of leg.  Does anyone have any idea what the gestation length on Shiver is.  I am assuming shorter since I've seen him to be reccomended calving ease?  This is the scenerio,  what do you think?

Tony
 

RSC

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Messages
1,998
Location
Shelby, NE
A story I just heard about a late AI calf.  I was viseting with the breeder that raised the Simmental Bull that won the classic.  He had put in a PB Sim embryo in an Angus cow and she ran with a PB Sim cleanup bull.  The calf came 21 days late so he showed it at the NE State Fair as a halfblood.  A fellow breeder after seeing the Bull said that's a PB.  He then DNA'd the calf and it came back as the PB Embryo calf, 21 days late.

Tony
 

farwest

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Apr 14, 2008
Messages
916
You have an interest in this one tony ?  Ai if you do.
 

justintime

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May 26, 2007
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Saskatchewan Canada
My guess is AI as well. Since we started putting groups of embryos in I have seen some really strange stuff as to to gestation length.Two years ago we implanted 28 embryos and we had 20 days between the first calf and the last calf. All the calves were DNA tested and all were ETs. The first calf born and the last calf born were from the same flush and both were heifers. There was 24 lbs difference in BW, between the first and last yet they were both born unassisted easily.All the calves appeared to be full term.  Five years ago, we implanted 18 embryos, and got 17 pregnancies . There was 18 days between the first born and last.Again they all appeared to be full term, and the youngest and oldest were both full sibs... and heifers. Sometimes, bull calves will go longer term than heifer calves, but does not seem to bet the case around here at least.

Right now I am calving out 12 recips, that were all implanted the same day. The first calf was born 7 days ago. The second calf was just born this morning... and there are 10 more to go. Some of these look a ways from calving yet, but they definitely are ETs as they were not exposed to a bull for 45 days after the embryos were implanted, and there wasn't even a bull within 5 miles of them. I am sure we will have at least a 15 day or more spread in calving dates again.

I never induce females and I have never had reason to do so. I am beginning to think that the recip has a defiinite influence on the gestation length... the sire is not the only influence on this.
 

RSC

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Jan 30, 2007
Messages
1,998
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Shelby, NE
justintime said:
My guess is AI as well. Since we started putting groups of embryos in I have seen some really strange stuff as to to gestation length.Two years ago we implanted 28 embryos and we had 20 days between the first calf and the last calf. All the calves were DNA tested and all were ETs. The first calf born and the last calf born were from the same flush and both were heifers. There was 24 lbs difference in BW, between the first and last yet they were both born unassisted easily.All the calves appeared to be full term.  Five years ago, we implanted 18 embryos, and got 17 pregnancies . There was 18 days between the first born and last.Again they all appeared to be full term, and the youngest and oldest were both full sibs... and heifers. Sometimes, bull calves will go longer term than heifer calves, but does not seem to bet the case around here at least.

Right now I am calving out 12 recips, that were all implanted the same day. The first calf was born 7 days ago. The second calf was just born this morning... and there are 10 more to go. Some of these look a ways from calving yet, but they definitely are ETs as they were not exposed to a bull for 45 days after the embryos were implanted, and there wasn't even a bull within 5 miles of them. I am sure we will have at least a 15 day or more spread in calving dates again.

I never induce females and I have never had reason to do so. I am beginning to think that the recip has a defiinite influence on the gestation length... the sire is not the only influence on this.
  Thanks for the input.  This actually happens to be a natural calf out of her.  She typically goes around 7 days over herself with heifers.  Since it was breech, wouldn't that be a reason for the delay?

Tony
 

RSC

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red said:
sorry Tony! I put down Jack.

Red
LOL, that's good Cathy.  If the DNA comes back as neither one of the first two sires, there will be some head scratchen.  What's the best way to pull DNA on a Donkey?

Tony
 

jbh

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Apr 2, 2008
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corydon iowa
Tony,

Unless I missed something.....this should be fairly easy to figure out.  An Angus bull should be homozygous black and solid patterened, SO, the most white the calf could POSSIBLY have is a roan belly if it is out of him.  I say it has to be a Shiver. 
 

RSC

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Shelby, NE
jbh said:
Tony,

Unless I missed something.....this should be fairly easy to figure out.  An Angus bull should be homozygous black and solid patterened, SO, the most white the calf could POSSIBLY have is a roan belly if it is out of him.  I say it has to be a Shiver. 
Thanks Brad,  that was what I was thinking when he and I first viseted just wanted to see if someone on here would back that up!

Tony
 

SWMO

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Jul 27, 2007
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Carthage MO
I do think that breech calves are sometimes late.  Maybe has something to do with the fact that the calf is not in the natural position and does not come up in the the birth canal?
 

Dusty

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Feb 13, 2008
Messages
1,097
I like how Jack the Donkey is ahead of the cleanup bull in the poll
 

RSC

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Shelby, NE
Dusty said:
I like how Jack the Donkey is ahead of the cleanup bull in the poll
He's the one I tried to buy on order fro a Christmas presant for a little girl in Iowa!

Tony
 

RSC

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Here is a picture of the Dam as a calf,  The new baby is colored the same way from what I've been told!  I finally ran onto the picture that I had of her!

Tony
 

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