Glossary

Screening Scheme Description

BAER Programme

The BAER (Brainstem Auditory Evoked Response) test is used to evaluate the hearing of a dog by detecting the electrical activity of the brain in response to an auditory stimulus (usually clicks), which is recorded and displayed on a computer screen. The test is a reliable method for determining whether a dog is deaf and for measuring the extent of its hearing loss. However, the test does not measure the full range of canine hearing, only hearing in the normal human range (some dogs will test as ‘deaf’ but can still hear very high pitched noises).

Test Results

Affected – Bilateral: the individual is completely deaf in both ears

Affected – Unilateral: the individual is completely deaf in one ear and able to hear normally in the other

Unaffected: the individual has normal hearing in both ears

When should your dog be BAER tested?

The best age to test a litter is around 5.5 to 6.5 weeks of age (ear canals don’t open until puppies are about 2 weeks old). The test can be carried out at any age after this, including on adult dogs; however, many breeders wish to know the hearing status of their pups before they go to their new homes. Also, at this age, puppies have an active period followed by a period of sleep, which is the perfect time to carry out the test.

 

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