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Small amounts of chocolate may cause vomiting or diarrhea, but larger amounts may affect the heart and brain. Large amounts of chocolate cause the dog to suffer irregular heart rhythms or heart failure. [7] Chocolate-style dog treats can be made with carob, which is similar to chocolate but innocuous to dogs.
Dogs are susceptible to allergies much like their human companions. Most allergies occur in dogs over 6 months old. A dog that is repeatedly exposed to a particular allergen becomes sensitized to it, and the immune system overreacts to a subsequent exposure, most commonly manifesting in the form of skin irritation. [1]
Dog with atopic dermatitis, with signs around the eye created by rubbing. Atopy is a hereditary [3] and chronic (lifelong) allergic skin disease. Signs usually begin between 6 months and 3 years of age, with some breeds of dog, such as the golden retriever, showing signs at an earlier age.
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When these glands are active, they leave the nose and paw pads slightly moist and help these specialized skin features maintain their functional properties. [4] The odor associated with dog paw pads is much more noticeable on dogs with moist paw pads than on those with dry pads. Dogs also have numerous apocrine glands in their external ear canals.
It is a congenital heart disease in dogs. There usually are no signs in dogs except for a heart murmur. However, a large defect can result in heart failure or in pulmonary hypertension leading to a right-to-left shunt. [49] Atrial septal defect* is a hole in the division between the heart atria (upper chambers of the heart). It is an uncommon ...
Wine red (or red-purple) occurs in a hybrid of the climber Aconitum hemsleyanum. There is a pale semi-saturated pink produced by cultivation as well as bicolor hybrids (e.g. white centers with blue-purple edges). Purplish shades range from very dark blue-purple to a very pale lavender that is quite greyish.
Brindle typically appears as black stripes on a red base. The stripes are eumelanin (black/brown pigment) and the base is phaeomelanin (red/yellow pigment), so the appearance of those pigments can be changed by any of the genes which usually affect them. Eumelanin (the pigment making up the stripes) can be affected by: merle (and harlequin ...