Swanson, J.A.; Goodband, R.D.; Nelssen, J.L.; Schricker, B.R.; Li, D.F.; Hansen, J.A.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1990)
Fifteen crossbred barrows were utilized to determine the effects of porcine
somatotropin (pST) administration in combination with increasing dietary threonine levels on nitrogen retention and growth performance. Barrows ...