 recessive genes
I know it is caused by a recessive gene, acctually not that uncommon, not desirable for the higher risk of more diseases and inheritable disorders. This collor is off-standards world around.... that must be a reason for concern....
Also if it happens the dog should be fixed not pass it on ... not other way around... definatelly not a reason to be advertizing it for stud....
beware.....
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