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The American Eskimo Dog (Eskie to his friends) comes in the largest size range of any of the spitz dogs, from six-pound toy to 40-pound standard. Fun-loving and smart, this is one of the most companionable of spitz breeds.
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The American Foxhound is a gentle, loving breed that does well in packs. If one dog is your limit, the humans in the family will have to be the pack. In other words, this breed does not do well isolated in the back yard, but must be part of a group. Several strains exist today, most kept by dedicated hunters.
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The American Staffordshire Terrier, like the other bull terrier breeds, has a reputation as a fighting dog. But with the exception of those that have been poorly socialized or trained to fight, the American Staffordshire Terrier is a fine, affectionate canine companion who has been unfairly targeted by legislation aimed at outlawing the breed.
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Energetic and playful, the American Water Spaniel loves kids and makes a great companion for active people. They enjoy investigating, running, hunting, fetching, and swimming. This sporting breed likes to keep moving and needs lots of exercise, but isn't as gregarious as more familiar spaniels like Springers and Brittanys.
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Anal sac disease is a common problem in dogs that can be very uncomfortable or painful. Signs to watch for, diagnosis, and treatments, including identifying and managing underlying causes are outlined in this handout.
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Anal sac tumors grow quickly and have a moderate risk of spreading to other parts of the body. Depending on the tumor’s size, your pet could develop signs of straining to defecate or produce thin ribbon-like stool. An increased calcium level in the blood is consistent with anal sac tumors, which can cause other signs and result in kidney failure. The best and most well-described local treatment for the primary tumor is surgery. Radiation and chemotherapy may be considered if there is evidence of spread.
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Anaplasmosis is a tick-borne disease caused by the infectious bacterial organism Anaplasma phagocytophilum. It is transmitted through bites of the deer tick (also known as the black-legged tick) and the Western black-legged tick. A lesser form of anaplasmosis is caused by Anaplasma platys and is transmitted by the brown dog tick. Dogs with anaplasmosis often have many of the same symptoms as those with Lyme disease, and infection with both agents (co-infection) is not uncommon.
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Hailing from Turkey, the Anatolian Shepherd Dog was bred to guard livestock. The breed is not well-known outside of his native land, except to fanciers. Guarding instincts are highly developed and can be misplaced if owners are not aware of this.
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Anisocoria is a condition in which the pupils of the eyes are different sizes; one pupil is larger than the other. Anisocoria is a symptom of an underlying condition or disease that needs to be identified and treated. Prognosis is guarded pending the diagnosis and treatment. Blindness may occur as a result of the underlying condition.
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Antibiotic-resistant bacterial infections are bacterial infections that are minimally or no longer responsive to commonly used antibiotics. Although these bacterial infections occur naturally, the frequent and/or inappropriate use of antibiotics accelerates the process. Dogs with certain medical conditions may also be predisposed.
