Metabolic disorder: Metabolic disorder was observed in 48.93% of the cases. Exercise intolerance and lethargy (Figure-7), obesity (Figure-8), and dyspnoea at rest (Figure-9) found in dogs with hypothyroidism, were in accordance with Greco et al. (1998). These abnormalities could be attributed to general metabolic disturbances that occur in impaired thyroid function or may be an indication of a neuropathy or myopathy (Mayr, 2007)