
Hi Lovelady, thanks for the link. Having looked at the pictures of the pups I would says it is highly unlikely that Thomas Jefferson is actually an American cocker! Regardless of his mismarking, his head and ear set are certainly not typical (to be polite about it) He looks to me as if he may be Am Cocker x Working cocker? Even poor breeding/puppy farm breeding would not account for the way he looks. Madison certainly looks like an American Cocker, and may prove to be the one who breaks the general rule, however, it is not a case study posted, but a sad in memory from her loving owners. She doesnt have an affix, they mention that the Haley in her name is her mothers name. It is hard from the photo to say what colour she is, but at a guess she is a very heavily marked sable & white.
The different colour personalities in the breed are not viewed as a problem, because the partis are more highly strung it does not make them less desirable, as I said, they are often the best show dogs and working dogs. Hybrid colour breeding is not very commmon in the USA, although there are many reasons when it can be useful. In the UK we have a much smaller gene pool, so look at it this way, if we have a wonderful parti dog, who complements a beautiful bitch, and both are eye clear and with no other potential health problems, then we consider mating them. In this way we do run the risk of mismarks (and not just in the first generation, you can still get the white marking cropping up in subsequent generations too) however, the quality of the dogs we have produced in this way make the mismarks worth the effort, and they make wonderful pets anyway. From that generation we can then either mate back solid or parti, and yes, we run the risk of mismarks again, but can utilise the gene pool availabe in the widest sense. Not a lot of UK kennels utilise this tool, as a lot of people dont take such a long term view of their breeding prospects as we do, and dont consider the mismark a worthwihle price to pay.
Biggles, who won DCC and Bob at this years Northern club show, aged 8 months, and is now well on his way to his title in the USA, is a parti colour son from a Black mother to a parti dog. His dam is a Sh Ch, and is the result of mating a Parti dog (another Sh Ch) to a Black dam (an Am Ch). Macey, who recently finished her Sh Ch title, is another hybrid bred Black. In the litters from which these dogs came were 1 or 2 pups who were mismarked, but still beautifully bred. So, in Am. Cockers in the UK a mismark is not necessarily a sign of poor breeding, (although it may be, of course).
Wish the original poster would let us know if anything has been resolved.
bye
Gwen