White Thoroughbred Q
White Thoroughbred Q 1 |
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#94045 Posted on 2017-02-19 09:40:40
I bred my mare to a stud who is White, does that mean he has the gene as a carrier or that he doesn't have it at all because he is plain black.
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Posted By Royal_Desire #103069 Member is Offline 11 forum posts Send A Message |
#94050 Posted on 2017-02-19 10:27:39
I'm assuming we're talking about Barbaric Satisfaction.
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Posted By kimtia #48 Member is Offline 1269 forum posts Send A Message |
#94084 Posted on 2017-02-19 12:41:58
Thanks so much :)
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Posted By Royal_Desire #103069 Member is Offline 11 forum posts Send A Message |
#94129 Posted on 2017-02-19 15:07:07
White is sort of an all or nothing gene. They can only carry one copy (W) cause WW is considered lethal. And on here it goes with either a +, Sb, or Rn I believe. So they essentially can pass on white, nothing, or a pattern, but the foal can't ever be just a carrier. So if you breed to a white horse, you have a 50/50 shot of getting either a white foal, or no white in the genetics :)
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Posted By ηεⲃυℓα #105977 Member is Offline 2258 forum posts Send A Message |
#94136 Posted on 2017-02-19 15:46:27
What do you mean by lethal?
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Posted By Royal_Desire #103069 Member is Offline 11 forum posts Send A Message |
#94137 Posted on 2017-02-19 15:47:54
^ In real life, WW causes some defect (I forgot what exactly) that makes living impossible (so the horses have to be put down). Someone else can probably answer this better lol
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Posted By Raptor #79219 Member is Offline 7244 forum posts Send A Message |
#94154 Posted on 2017-02-19 17:01:07
I think in the genetics guide, Abbey wrote that WW causes the intestines to form incompletely, so the foal can't survive more than a couple of days :/ Abbey made it so that there's no such thing as a WW foal in the game, so if you breed two Ww horses, you can get Ww or ww (each parent passes one copy to the foal). Even if the Ww horse has a pattern, such as WSb or WRb, it will show as solid white with "No Pattern" (if I recall correctly).
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Posted By Ãemure #98096 Member is Offline 603 forum posts Send A Message |
#94229 Posted on 2017-02-19 23:12:39
@Raptorfang, that is actually incorrect, if we're speaking in realistic terms. There have been homozygous W horses. It just depends on the mutation. There are currently 22 different W mutations in horses in real life. It's only been confirmed to be lethal in only one (found in the endangered Camarillo white horse). It is theorized to be embryonic lethal in some other mutations, but this has not been confirmed.
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Posted By vos #32898 Member is Offline 728 forum posts Send A Message |
#94232 Posted on 2017-02-19 23:55:34
O.o interesting. I thought I had gotten the intestinal bit from the genetic guide, but it's not there now (either under dominant white OR overo).... maybe it was updated?
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Posted By Ãemure #98096 Member is Offline 603 forum posts Send A Message |
#94241 Posted on 2017-02-20 05:20:34
^ I feel like I read that somewhere as well, but also the overo bit. Interesting!
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Posted By Raptor #79219 Member is Offline 7244 forum posts Send A Message |
#94473 Posted on 2017-02-21 13:35:52
I honestly think that the reason we don't see many horses that are homozygous for one white spotting mutation is that most of them run in a particular family line, so in order to get a homozygous horse you would need to at least do linebreeding, if not straight up inbreeding. The only real exception is W20, which is found in many lines and breeds and simply acts as a booster to other white patterns.
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Posted By vos #32898 Member is Offline 728 forum posts Send A Message |
#94588 Posted on 2017-02-22 02:56:36
Breeding an overo horse to another overo horse will produce a foal with what is called lethal white. These foals look to be all white with only a spot or two of color. When the foals are born they look and act normal. With in a few days though they nurse and feed as normal they do not produce fecal matter. The intestines and or stomuch in these horses are not complete. Most times they only live a few days. Some times the mare will kill the foal her self. other wise they are either put down or die with in a few days of birth. Hope this post helps
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Posted By Magic Happens #106626 Member is Offline 77 forum posts Send A Message |
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