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Cremello fertility issues

Equine-Reproduction.com Bulletin Board » General Stallion Questions » Cremello fertility issues « Previous Next »


Author Message
 

Jamie Anderson
Neonate
Username: Jamiea

Post Number: 2
Registered: 02-2008
Posted on Saturday, March 29, 2008 - 10:09 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I'm working with a cremello stallion at the moment who has fertility "issues". His collections generally yield 20-50ml of semen at 300-400x10^6 sperm/ml, and the motility varies from <10%-40% at best.

His sperm cells do not seem to survive chilling very well, if at all, with chilled motility falling by >50% of the original motility every 12 hours. We've tried centrifugation, using extenders containing egg yolk, and collecting into a bottle containing extender - all of which helped to improve the situation (marginally). Next, we're going to try separating the ejaculatory jets (pinching off the AV after the first 3 urethral pulses - thanks Jos!). A collection centre over here has written him off as infertile, but he settled 5/15 mares by natural cover last year, so I don't believe that he is a lost cause!

I wondered whether anyone else has had any experiences of cremello stallions with this sort of trouble? I know that many of them have health problems linked to their colour, but is fertility/infertility effected in most or all cremellos?

Thanks for reading,
Jamie
 

Dee Jay
Neonate
Username: Djscoloredcorral

Post Number: 4
Registered: 01-2009
Posted on Sunday, January 04, 2009 - 11:17 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Jamie: I own a perlino stallion. If you get the Paint HOrse Journal, there was an excellent article in the December issue last month on cream gened horses.

It is not true that dilute horses have any health problems linked to their color. Some popular beliefs is that they have eye problems, and skin cancer, but studies have shown that this is not any more prevalent in dilute horses than in the general population.



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