Many years ago I raised canaries. Occasionally I could get pot seed for my birds as a treat. They loved it, and their feathers were brighter in color and they sang better than when I couldn't get pot for them. They...
"Lean finely textured beef" should not need treatment with ammonia to make it safe for us to eat. If it can't be used without ammonia don't sell it for consumption. My dogs don't need ammonia in their diet either.