I feed Sheldon raw food from a supplier that has a lot of protein sources. He's happily devoured chicken, turkey, red deer, etc.
Yesterday I bought him rabbit. And he won't touch it! Have you ever experienced your hav turning away from a particular meat? He ate a little kibble I offered him so I don't think it's tummy issues. And the rabbit has no signs or smells of some kind of spoilage.
The pet food manufacturer, which is local, caters to pets with allergies. They mentioned that they often recommend rabbit to owners whose dogs have problems with other meat sources. Fortunately, that is not the case with Sheldon, so we have a lot of other protein to choose from.