Kats, L.J.; Friesen, K.G.; Goodband, R.D.; Nelssen, J.L.; Tokach, M.D.; Richert, B.T.; Owen, K.Q.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1993)
Eighty growing-finishing pigs (40 barrows
and 40 gilts) were used in three consecutive growth assays to determine the optimum methionine:lysine ratio for pigs weighing from 48 to 107 lb, 120 to 179 lb, and 191 to 245 lb, ...