Flow cytometric analyses of mAb C binding to sperm from different species. Panels a-g, show results from flow-cytometric analyses of mAb C binding to sperm from pig (Yorkshire), mouse (FVB/N), chicken (White Leghorn), cow (Holstein), goat (Nubian), sheep (Merino) and human (Mongolian) respectively. Areas under solid lines represent FITC-conjugated goat anti-mouse immunoglobulin secondary antibody (2° Ab) (ICN) serving as a negative control in all sperm analyses. Shadowed areas represent mAb C and 2° Ab binding to sperm from different species. The experiments were performed at various times.