The first time we canned chicken, we cooked it first, deboned, then canned. I really didn't care for the mushy texture. It reminded me of tuna. The second time we did it, we deboned it w/out cooking, then presure canned it. It had a much better texture and flavor. IMHO, if you cook it first, you're cooking out a lot of the flavor. We also put the leg/thigh bone in the jar to help make the broth richer. The broth in the jar that results is fabulous. We were getting a whole chicken in a quart. We cut the wings off, as it they really aren't worth canning.