Thhe wonderful joke about EID tracability. first off, the head with the tags, who knows what belongs to who now?
Stressed meat is usually very dark, i have had problems with young bulls slaughtered as veal. they can get very excited easily.
never with lamb, but hanging is important. as far as i know texture of the meat will not be affected by feed or management on the run up to slaughter, but taste could be.
i would suggest lots of lamb casserole, sausage and burgers!
d