Re: RC: RC: Re: Breeding theories (was *Musc

[Truman Prevatt <truman.prevatt@netsrq.com>]

That is interesting.  What physical mechanism do the researches think
comes into play here? The genetic blueprint should be the genetic
blueprint.  I understand that an older mare may not be a good as growing
the fetus as a younger one, but what physics explains the aging of the
genes?

Truman (or to quote Lord Rutherford when he accepted the Nobel prize for
chemistry for his discovery of radio active decay. "science is either
physics or stamp collecting")

Paula C Gentry wrote:
> 
> It's a little late in coming (out of town and behind on ridecamp!) but I'd
> have to agree with Heidi on this one. I work primarily with sheep and
> cattle but have been involved peripherally with equine reproductive
> research for years. I know with cattle that embryo transfer people
> prefer younger donors of both sexes. For horses, the gut feeling among
> people I've worked with is that if you have an old mare, your best bet is
> a young stallion. All the usual disclaimers about "quality" apply.
> 
> > << Perhaps there is anecdotal evidence to support a
> >  breeding program such as you describe.  I'm not aware of any scientific
> >  evidence that "breeding extremely old mares to young stallions
> >  and extremely old stallions to young mares" can improve chances of a
> >  successful outcome. >>
> >
> > Actually, I got that advice from geneticists who DO feel that there is at
> > least some evidence to support that concept.
> >
> > Heidi
> >
> 

-- 
Truman Prevatt
Mystic “The Horse from Hell” Storm 
Buck's Mystic Karma
Rocket a.k.a. Mr. Misty
Jordy a.k.a. Bridger (when he is good)
Danson Flame - hey dad I'm well now and ready to go!

Brooksville, FL


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