Join Date: Jul 2012
Location: Southern Ontario
Another type of nose disorder is called zinc-responsive dermatosis. Itís caused by a zinc deficiency and is prevalent in Huskies, Doberman pinschers, Great Danes, and Alaskan malamutes.
In zinc-responsive dermatosis, the dogís hair thins and a scaly, crusty rash can develop on the face that is most obvious on the nose, around the eyes, even in the ears, and around the mouth.
Crusting also appears on the elbows and hocks in some dogs. These areas can become callused and crack easily.
Itís important to make sure your dog has a confirmed case of zinc-responsive dermatosis before you discuss supplementing zinc with your vet. Zinc toxicosis is actually more prevalent than zinc-responsive dermatosis due to pet owners over-supplementing with zinc, incorrectly assuming their dog has a deficiency.
Other nutritional deficiencies can also cause changes in nose tissue, especially omega-3 fatty acid deficiency, which can cause the nose tissue to become thickened and dry.
Omega-3 fatty acids are sensitive to heat and light, and their potency decreases over time when food is stored. Itís no wonder that most pets consuming dry, kibbled food end up with essential fatty acid deficiencies.
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