<<Disclaimer: Verify this information before applying it to your situation.>>
Given the following references (which I don't remember being
discussed here before), maybe you could do your pet a favor and put
him on a gluten free diet. We're going to try our Golden Retriever
once the 80 pound bag of Science Diet runs out.
Hall EJ. Batt RM. Dietary modulation of gluten sensitivity in a
naturally occurring enteropathy of Irish setter dogs. Gut.
33(2):198-205, 1992 Feb. #
Lowe NM. Hall EJ. Anderson RS. Batt RM. Jackson MJ. A stable isotope
study of zinc kinetics in Irish setters with gluten-sensitive
enteropathy. British Journal of Nutrition. 74(1):69-76, 1995 Jul. #
Hall EJ. Carter SD. Barnes A. Batt RM. Immune responses to dietary
antigens in gluten-sensitive enteropathy of Irish setters. Research
in Veterinary Science. 53(3):293-9, 1992 Nov. #