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Post by doublevision1972 on Dec 1, 2010 21:33:32 GMT
I know there are a lot of colour experts on here so please can you help me, I have a grey mare with grey parents and I desperately dont want to breed a grey offspring!! Is this possible? or is it a 50 50 chance?
Also what would be the biggest stallion I could use on her 11.3 she is Ive been thinking of a 13.1 would this be ok??
Thanks
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Post by victoria (highhill) on Dec 1, 2010 21:37:54 GMT
if i were you, i would ask sarahp - she is a genetics expert - very knowledgable
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Post by holiday on Dec 1, 2010 21:47:45 GMT
Im sure sarahp will help, do you know what colour she was when she was born? Bay or Chestnut? It is usually advised no more than 2 hands higher than the mare.
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kayjayem
Happy to help....a lot
Posts: 10,046
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Post by kayjayem on Dec 1, 2010 22:15:32 GMT
You could have the mare dna tested to see if she is homozygous grey or not. If she is it doesn't matter what colour you put her to you will always get grey. I would agree 2 hands bigger is enough.
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Post by doublevision1972 on Dec 2, 2010 0:40:25 GMT
Thanks everyone, Ill find out what colour she was as a foal
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sarahp
Happy to help
Posts: 9,510
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Post by sarahp on Dec 2, 2010 8:21:23 GMT
I think it's all been said really! If she was born bay or chestnut or obviously something else not grey (we have lots here that have dilute as well so could be palomino or buckskin at birth) it is likely she has only one copy of the grey gene (heterozygous) in which case there is a 50: 50 chance of her foal inheriting the grey gene. If she has two copies (homozygous) than all foals will be grey. Homozygous greys are usually born somewhere in the black/grey spectrum anywhere from very light to very dark. I have a wonderful description of grey (not mine but I love it) which says it's not really an actual colour but more of a paint stripper in which it acts to leach all the colour out of the coat until the pony is eventually white. it can be quick acting or slow, with some ponies not greying out until well into adulthood, and if dilutes are involved they can go through some very weird looking stages on the way, often darkening on the way.
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