Dairy cows are more prone to metabolic diseases due to high milk yield, particularly when adequate feeding and care are not ensured during the period from calving until they reach peak lactation. During the transition period (three weeks before and after calving), dairy cows undergo significant metabolic and physiological changes for the production of milk. The commonly occurring metabolic diseases are milk fever, post-parturient haemoglobinuria (PPH), ketosis, ruminal acidosis, laminitis, fatty liver and hypomagnesemia.