Hence nutrition represent 70% of animal management cost, so lowering of animal nutrition cost will make animal management more cheaper. A high quality milk replacer provides the calf with the nutrients it needs to grow and remain healthy. Amino acids, carbohydrates, and fat are needed in the correct proportion to assure proper tissue growth .Minerals and vitamins are needed to keep the bones strong and keep the calf healthy. as indicated in this study milk replacer had a beneficial effects on calves body growth and highly economically feasible when compared with milk feeding. Это и многое другое вы найдете в книге The Body Growth And Economical Effects Of Milk Replacer In Calves (Kamal Elabid and Ammar Eljack)