The experiment animals were composed of 70 crossbreed offsprings of Borderdale or Poll dorset, which were the introduced excellent sheep for meat from New Zealand in 2000 and local Mongolia ewes and 20 local lambs with the same age. After being fed for a short time, 30 lambs at 7 months old were slaughtered ,which included 5 local rams, 5 wethers, 5 crossbreed rams of Borderdale, 5 crossbreed wethers, 5 crossbreed rams of Poll Dorset and 5 crossbreed wethers of Poll Dorset. Meat color, pH value, cooking per...