Border colts are best not to eat leftovers, because the food eaten by humans is relatively oily and salty. Border colts are prone to hair loss and other problems after eating it, and the nutrition is not up to par, which is not good for dogs. The growth of the dog. There are also many foods that dogs cannot eat. If they eat them, they are prone to food poisoning and other reactions, so it is best not to give leftovers to Border Collies, especially those with chicken bones and fish bones.