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Health and Genetics

HD - Hip Dysplasia (ASHGI Official Document)

ED - Elbow Dysplasia (ASHGI Official Document)


MDR1 - Multi-Drug Resistance 1 (ASHGI Official Document)

HSF4 - Hereditary Cataracts (ASHGI Official Document)

DM - Degenerative Myelopathy (ASHGI Official Document)

PRA - Progressive Retinal Atrophy (ASHGI Official Document)

CEA - Collie Eye Anomoly (ASHGI Official Document)


Eye Health & Exams (ASHGI Official Document)

CMR1 / CD - Canine Multifocal Retinopathy &

Cone Degeneration (ASHGI Official Document)


HCM - Hereditary Cobalamin Malabsorbtion (ASHGI Official Document)


Epilepsy (ASHGI Official Document)

Cancer - Hemangiosarcoma & Lymphoma (ASHGI Official Document)

Thyroid (ASHGI Official Document)


Luxated Patellas (ASHGI Official Document)

Cruciate Ligament Ruptures (ASHGI Official Document)



Other Health Information Handouts From ASHGI

(All Health Information provided by The Australian Shepherd Health & Genetics Institute)

The Australian Shepherd and Miniature American Shepherd share many of the same health issues.


Frequently Asked Questions

Does A Merle Coloured MAS have more health problems?

There is a common misconception that merles have more health problems which has stemmed from the fact that there in an inherited risk with accidental merle to merle breedings, as opposed to a merle to non-merle breeding.

Is there any documentation I should ask a breeder for regarding DNA tests?

A MAS breeder should be willing and able to show you copies of results from DNA tests, eye exams, hip and elbow screening reports.  If you are looking at a specific litter and the breeder does not own the sire, he should have a copy of the dog’s certificates or be willing to get them for you.

Do MAS with Blue Eyes have eye issues?

Blue eyes are not more susceptible to eye defects and disease but they are more sensitive to bright light (as they are in blue-eyed people.)  There is no clear association of blue eyes to deafness in MAS, deaf MAS virtually always have too much white or are double merle.

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Institute of Canine Biology

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