The Australian Shepherd is a medium sized breed of solid build. The standard calls for the Australian Shepherd to stand between 18-23 inches at the withers. Females being 18-21 inches and males measuring 21-23 inches
Temperament:
The breed is an energetic dog that requires exercise and enjoys working, whether it is learning and practicing tricks, competing in dog agility, or any other physically and mentally involving activity.
Dogs with strong working instinct may show more reserved, guarding behaviors along with a tendency to chase or nip at strangers. Its protective instinct and behaviors can be frightening to children, strangers, and small animals. They are kind, loving, and devoted to those they know. They are very loyal to their owners, and are rewarding dogs if treated well. Because the breed was developed to serve on the ranch, a job which includes being protective of its property, it is inclined to bark warnings about neighborhood activity, but it is not an obsessively barking dog.
The Aussie is intelligent, learns quickly, and loves to play. This means that a bored, neglected, unexercised Aussie will invent its own games, activities, and jobs, which to a busy owner might appear to be hyperactivity: for example, an Aussie may go from being at rest to running at top speed for several 'laps' around the house before returning to rest. Without something to amuse them, Aussies often become destructive. Aussies also do best with plenty of human companionship: they are often called "velcro" for their strong desire to always be near their owners and for their tendency to form intense, devoted bonds with select people. Recent studies have also shown that shepherds work well with special-needs kids and babies.
The Australian Shepherd has a reputation as a highly intelligent and versatile stock dog with a range of working styles. A good working Aussie is quick, thoughtful, and easy with its stock. The ability for the breed to adapt to the situation and think for itself makes it an excellent all-around worker. For this reason the Aussie is often chosen to work unusual livestock such as ducks, geese, and commercially raised rabbits.
The Australian Shepherd, though a great dog for a family with an abundance of time, can become extremely destructive if left alone, or in small spaces. They are known for digging holes, tearing up lawns, and chewing anything in sight if they become restless. These dogs require a minimum of 2-3 hours a day of play and exercise and need constant attention. The dogs thrive in rural, ranch like conditions, but would be a nightmare for any busy group of people living in a city or suburb. When neglected, the Australian Sheepdog is also know to become extremely aggressive towards its neglecters and other humans or animals. When restless, they will often try to "herd" their owners which may include excessive jumping, snapping, and biting.
Health:
There are many health problems that an Australian Shepherd can acquire, including back and hip problems, vision problems, and pancreatic problems. Also, an Aussie can develop bladder problems and urinary infections over time. Many can be epileptic. Thyroid problems are also appearing.
Results of a 1998 internet survey with a sample size of 614 Australian Shepherds indicated a median longevity of about 12.5 years, but that longevity may be declining.
A 2004 UK survey found a much shorter median longevity of 9 years, but their sample size was low (22 deceased dogs).
The median life spans for breeds similar in size to Australian Shepherds are mostly between 11 and 13 yrs, so, assuming the results of the UK study are not representative of the population there, Aussies appear to have a typical life span for a breed their size.
Leading causes of death in the UK survey were cancer (32%), "combinations" (18%), and old age (14%).
Based on a sample of 48 still-living dogs, the most common health issues noted by owners were eye problems (red eye, epiphora, conjunctivitis, and cataracts). Dermatological and respiratory problems also ranked high.
Collie eye anomaly (CEA) and cataracts are considered major health concerns in Aussies.
Other conditions of note include iris coloboma, canine hip dysplasia (CHD), Pelger-Huet syndrome, hypothyroidism, and nasal solar dermatitis. Prior to breeding, the Aussie should be checked for Hip and Elbow Dysplasia, DNA tests performed to show the dog to be free of the MDR1 mutation, cataract mutation, and CEA. Tests should also include those for thyroidism and clearances for other known eye diseases like colobomas, PRA and retinal folds.
The Australian Shepherd (as well as Collies, German Shepherds and many other herding dogs) are susceptible to toxicity from common heartworm preventatives (anti-parasitics) and other drugs. This is caused by a genetic mutation of the MDR1 gene. The most common toxicity is from the heartworm medicine Ivermectin found in products such as Heartgard. (Only at very high doses. Most dogs will not have problems with Ivermectin found in products such as Heartgard Plus.) A test is available to determine if a particular dog carries the mutated gene.
