Answer:
Abby's dog must be deficient in growth hormone.
Explanation:
Dogs shed hair naturally, however, when the shedding is pronounced and in large quantities, the dog must have alopecia.
Canine alopecia can be a natural thing for the breed, but it can also occur due to a deficiency in growth hormones within the dog's body. In the case of Abby's dog, it is likely that he is deficient in growth hormone, because in addition to the loss of hair he has a slow growth pattern. In that case, Abby should take your puppy to the vet to find out what treatments are appropriate to help your puppy solve this problem.
