You could try adding a limited ingredient venison-based canned food, dehydrated food or raw food to make the dry more palatable.
Canned Options:
-EVO Grain-Free 95% Venison
-Canine Caviar Green Venison Tripe
-Natural Balance LID Venison & Sweet Potato
-Addiction Venison and Apple Entree
-Wysong Venison Au Jus
Dehydrated Options:
-Grandma Lucy’s Artisan Venison
-Addiction Fig’licious Venison Feast
Frozen Raw:
-Primal Canine Venison Formula
Also, another dry food that’s venison based and limited in ingredients to possible try would be Addiction’s Viva La Venison.
All of the formulas I mentioned contain venison as the only protein source and some of the canned formulas contain only venison and no other ingredients (aside from vitamins/minerals) so they shouldn’t trigger any sensitivities.
I would also recommend supplementing his diet with a high quality multi-strain probiotic supplement and digestive enzymes to help strengthen his digestive system. A spoonful of pumpkin with each meal during the transition may help as well.
