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Testing Protocol for Inherited Diseases in Australian Shepherds

by C.A. Sharp

Notes:Screening items in red should be considered mandatory.
DNB: Do Not Breed
Detailed information on these diseases and testing proceedures can be found elsehere on this site or in
links provided in subject matter areas or on the links page.

Recommended Age Test Performed By Breeding Status Comments
Affected Carrier
5-8 Weeks eye exam vet opthalmologist CEA: DNB
Iris Coloboma: DNB
Ditichiasis & PPM: See Comments
N/A ALL Aussie puppies should have an eye exam.
Puppies with PPM should be re-checked at 6-12 months.
Puppies with multiple distichia or distichia causing corneal abrasions should not be bred.
heart check small animal vet congenital defects: DNB N/A Test puppies with family history of Patent Ductus Arteriosis or other congenital heart defects.
Puppies with congenital heart defects should not be bred.
Recheck if necessary.
4 mos heart re-check small animal vet congenital defects: DNB N/A Upon advice of vet.
hernia exam breeder or small animal vet see comments N/A If surgical correction is required, do not breed. All others, do not breed to affecteds or their close kin.
6 mos MDR1 testing lab breed only to clear breed only to clear Testing should be done before dog receives any MDR1-sensitive drugs.
Any dog with the mutation should not receive MDR1-sensitive drugs.
CEA testing lab DNB breed only to clear Test all dogs with a family history.
Cobalamine Malabsorption testing lab DNB breed only to clear Test all dogs with a family history.
PHA small animal vet or pathology lab N/A breed only to clear Lethal to fetuses and neonates.
Test all dogs with a family history.
Cardiac vet cardiologist DNB N/A If there is a family history of congenital heart defects.
Hemophilia/
vonWillebrands
testing lab DNB N/A Necessary only if dog shows evidence of clotting disorder.
PRA testing lab DNB Breed only to clear Test all dogs with family history.
Cryptic Merle testing lab Breed only to non-merle Breed only to non-merle Test any dog suspected to be a cryptic ("phantom") merle.
12 months eye exam vet opthalmologist Cataracts: DNB
Iris Coloboma: DNB
Ditichiasis & PPM: See Comments
N/A Dogs with lens or cornea PPM attachments should not be bred.
Dogs with multiple distichia or distichia causing corneal abrasions should not be bred.
patellas small animal vet DNB N/A Test all dogs with a family history.
Thyroid qualified lab DNB N/A Use OFA-approved panel.
2 years hips small animal vet DNB N/A Exam age may vary depending on screening program used.
elbows small animal vet DNB N/A Exam age may vary depending on screening program used.
eye exam vet opthalmologist Cataracts: DNB
All others: As above.
N/A  
3-9 years eye exam vet opthalmologist Cataracts: DNB
All others: As above.
N/A