C.11 Lymphocyte and hormone responses after antigen stimulation in B-G MHC congenic lines selected for antibody response to SRBC: H.S. Siegel1, M.M. Mashaly1, W.E. Briles2, H.S. Lillehoj3, P.B. Siegel4, E.A. Dunnington4 1Dept. of Poultry Science, The Pennsylvania State University, University Park, PA 16802, USA, 2Dept. of Biological Sciences, Northern Illinois University, DeKalb, IL 60015, USA, 3USDA-ARSAPI, Beltsville, MD 20705, USA, and 4Dept. of Poultry Science, Virginia Polytechnic Institute, Blacksburg, VA 24061, USA