Here’s an interesting article on brindle and chimericism. So far, Rubi’s foals haven’t been told Rubi isn’t their mother so I’m guessing she’s not chimeric. But the UC Davis test will be the judge of that. 
http://www.aqha.com/magazines/aqhj/content/2006content/06february/oneinamillion.pdf
It could be luck of the draw that you picked the “right” dna for the genetic testing of parentage
Don’t they send in about 50 hairs for DNA testing per foal? I can’t imagine that out of 6 foals, not one would come up different if she is chimeric. Random picking 6 out of 6 matching DNA is pretty low odds IF there’s two lines possible isn’t it? Shouldn’t it be closer to 50/50 (statiticaly (sp?) speaking)?
Here’s a p
This is Rubi’s 2011 Stedinger filly and she has one ‘stripe’ on her shoulder. Rubi has a bridle stripe on her shoulder as well. Is is possible Rubi’s filly inherited the bridle gene? It looks drippy like the brindle pattern rather than a stripe caused by sooty foal coloring.
What do you think?
http://i935.photobucket.com/albums/ad198/HorseFeathersFarm/5b372f6f.jpg
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