Micro-mineral deficiencies of Zinc, Manganese, Iodine and Copper have been identified in blood plasma and serum levels of livestock in state of Punjab. Eighteen female buffalo calves of 15 day of age were randomly divided into 2 groups of nine each and fed calf starter of ingredient composition as per the prevailing feeding practice at the university dairy farm containing zinc and copper (organic and inorganic) in the mineral mixture as per specifications along with green fodder and milk. The growth study was of 120 days. Body weight and body measurements were recorded at monthly intervals to calculate growth of calves. | Effect of organic Cu and Zn on the performance of pre-ruminant buffalo calves