Genetic testing for white-footed herding dogs a must!
White-footed herding breeds, such as Border Collies, Australian Shepherds, Australian Cattle dogs, Corgis, Shetland Sheepdogs, Catahoula Leopard Cow-hog dogs, Scotch Collies and Collies, just to name a few, should be tested for a gene mutation. The gene is the multidrug resistance MDR1 gene and causes dogs to react to ivermectin and other drugs including common chemotherapy drugs. The reaction can be lethal.
What is important to know, is that eating the feces of livestock recently dewormed with ivermectin can also cause a severe reaction in dogs that have the mutation.
The safest thing to do is get a genetic test done on your dog by contacting Washington State University http://vcpl.vetmed.wsu.edu/ and order either the cheek swab or blood draw test. It is always better to be safe than sorry.
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