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Offline LLBUX

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Bent tails in semen check
« on: May 27, 2015, 08:48:31 PM »
Tested a 16 moth old bull recently that had a high % of sperm cells with bent tails and therefore did not pass the BSE.

Seeking info on cause of the problem.

Vet thought he just needed more time and might need less feed.

Anything nutritionally (vitamin/mineral) can be done to help the situation?

Thank you-

Offline Hilltop Genetics

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Re: Bent tails in semen check
« Reply #1 on: May 27, 2015, 09:05:53 PM »
had a bull a couple years ago with same problem...
  http://www.ncbi.nlm.nih.gov/pubmed/980695
   it would be interesting to see if your bull had a high level of zinc
 https://www.google.com/?gws_rd=ssl#q=dag+defect+bull+sperm

Offline cowboy_nyk

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Re: Bent tails in semen check
« Reply #2 on: May 28, 2015, 07:34:56 AM »
If you're bull is a bit over-conditioned that could be a cause.  I had a bit of trouble with an easy-keeping bull this spring.  He was always fatter than his pen mates and his semen had more abnormalities in it than allowed.  I put him on a diet and he passed in a month.  The fat causes issues with temperature regulation in the testicles and results in more abnormal sperm.

 

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