New baby calves are kept healthy by being fed mother’s milk (called colostrum) soon after being born. They receive personalized attention; getting an ear tag & vaccinations. Calves are then kept with others their age to learn and grow with. At about 2 years old, heifers are old enough to have calves, and the vet helps monitor their health. If a cow needs surgery or antibiotics, they are kept separate so they can rest and heal. The milk from these cows are then discarded, as it is not safe for food supply. Keeping calves and cows are very important to dairy famers.