[Marlene N]

hi kriste. 
My suggestion is take your puppy off of the blue wilderness puppy food completely.
My Golden Retriever puppy like I said was fine for the first 6 months and then the diarrhea started. The food that my vet had recommended after doing the chicken and rice for 2 months and trying to get my dog back onto dog food was called Prescription ID , which is only sold by vets in canada. At $45 for a small bag, i decided to research futher. I found that the nutritional values, etc. were equivalent to the puppy food by Nutro Natural Choice lamb and rice puppy food for large breed.I have had my puppy on this food now for 2 months and no problems with her stomach, stools are firm, energy level is returned and her weight is where it should be.  At 10 months old she is 52 lbs.I hope this helps!
as you transition from chicken and rice over to puppy food I can only suggest to change the protein to either ground beef or turkey instead of chicken.
your transition should take no more than 14 days. Start with the protein and rice for a few days, until the stool is semi formed. (assuming you are feeding your puppy 3 times a day one cup per meal.) then slowly introduce the food and reduce the other two components by 1/4 cup intervals.
Ex. 1/4 protein, 1/2 rice, 1/4 food, keep consistant for a few days, reduce the other two components until you are down to 1/8 protein, 1/8 rice and 3/4 food. By this time you will also know if the food is stable on your puppies stomach.
good luck!