Is it OK to breed a dog that takes thyroid medication?
On One Hand: Thyroid Problems Are Genetically TransmittedAs Drs. Nachreiner, Bowman, Refsal, Graham, and Bolliger of the Animal Health Diagnostic Laboratory at Michigan University note, both hypothyroidism and hyperthyroidism are genetically transmitted diseases, as a result of autoimmune thyroiditis. As the thyroid gland controls the rate of metabolism in nearly all of the cells of the body, a malfunctioning thyroid affects a variety of body systems. Weight gain, weakness, hair loss, skin problems, seizures, cardiac problems, and infertility are all possible results of thyroid disease. The Michigan researchers surmise that there is a genetic disposition to this disease.On the Other: Environmental Factors May Also Be ResponsibleThere has also been evidence that environmental factors may play a role in triggering the onset of thyroid disease. These factors include diet and exposure to toxins. Pesticides and growth hormones used to feed cattle and chicken that end up in dog food, phenoli
