I got a Jack Russell female at approx 10 weeks at which point she pooped 20 times the first day and all that week. After going through a few different foods (which she refused to eat<but has no trouble trying to eat my food>) I have her on Merricks Puppy Plate. I ad some home cooked beef and veggies (carrots celery and potatoes). She eats 1 cup at 8a and 5p and has a carrot or apple or banana as a treat. At 15 weeks she is still pooping 17 times a day. She has had 2 doses of Excel roundworm remover and her stools appear normal and healthy..occasionally soft, but never runny. One day I heard what sounds like "pop rocks" going off in her tummy...you could feel and hear the popcorn pops in her tummy.