Just a point of clarification, the most typical ages of onset for ARVC (Cardiomyopathy) are 3, 5, 8 and 11. However it can show up at any age. What's more, a dog who doesn't show signs until 11 can still produce puppies that drop dead at 3. That's why regular holtering is so important, even after dogs are past breeding age.
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Detroit Boxer Examiner
National Boxer Examiner
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