it is STRONGLY recommended that you not feed land-based protein to fish. very few fish are biologically equipped to make efficient use of dry-land meat. it is also generally recommended to limit the amount of feeders as feeders are too high in fat for most fish. fatty fish live much shorter lives and put on a lot more girth than length.
the only non-aquatic meat that i've seen recommended for feeding fish is beefheart. but even that is slowly losing favor in the hobby as time wears on. treated meats like most hams and defiinitely barbeque chicken are not good for your fish. they contain many chemicals that would be undesirable in the aquarium (and beyond that, ham is considered on the fatty side for people to eat a lot of!)