J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 648 Testosterone exposure alters embryonic bursal gene expression in chicken lines selected for differential antibody response. R. L. Taylor, Jr.*1, T. Burks1, C. Timmerman2, P. B. Siegel3, and C. M. Ashwell2, 1University of New Hampshire, Durham, 2North Carolina State University, Raleigh, 3Virgi...