Diet causing diarrhea
I have a 13 week old pup who was fed on puppy pedigree by the breeder. When we picked him up at 9 weeks we slowly switched his diet onto much better food which we researched and thought to be the best out there (photo of ingredients attached). He started having very sloppy poos for around 2 weeks (some would be solid but then end with sloppy), we got medicine from the vets but it didn't seem to do much. We decided to try him back on supermarket brand food which had a more similar composition to the pedigree and his poos have (mostly) since hardened up again. Does anyone have any ideas about what ingredients of the food could be causing the sloppy poos? I am aware that GSDs can have particularly sensitive stomachs but I thought we had avoided all of the major allergens. Its very frustrating as we want to feed him the good food we have as it is obviously a much better diet. Thankyou!
I'm not sure if the photo attached, if not these are the ingredients:
Chicken, Turkey and salmon 60% - including 20% freshly prepared chicken, 14% dried chicken, 7% freshly prepared turkey, 7% freshly prepared salmon, 7% dried turkey, 3% dried salmon and 2% chicken stock.
* 19% Sweet potato
*potato, linseed, bett pulp, omega 3 supplement, minerals, vitamins, dried carrot, peas, vegetable stock, glucosamine (170mg/kg), methylsulfonylmethane (170mg/kg), chondroitin sulphate (125mg/kg), nucleotides, FOS (92mg/kg), MOS (23mg/kg).