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k9web.com :
Yes, this happens with many breeds, actually. It is called "winter nose" or "snow nose." Many yellow Labs will have dark noses in the summer that fade somewhat in the winter and repeat the cycle the next year. It is not understood why this happens. You can see it in many northern breeds such as Huskies and Malamutes as well. This is not considered a fault in any of these breeds and is not penalized. To differentiate between Labs with faded noses and Dudleys, check the eyerims and gum tissue of the dogs. A Dudley will have only light pink or tan skin; the other dogs will have black pigment in these areas.
Yes, this happens with many breeds, actually. It is called "winter nose" or "snow nose." Many yellow Labs will have dark noses in the summer that fade somewhat in the winter and repeat the cycle the next year. It is not understood why this happens. You can see it in many northern breeds such as Huskies and Malamutes as well. This is not considered a fault in any of these breeds and is not penalized. To differentiate between Labs with faded noses and Dudleys, check the eyerims and gum tissue of the dogs. A Dudley will have only light pink or tan skin; the other dogs will have black pigment in these areas.