Bacterial Infection in Cows Associated with Abortion, Endometritis and Infertility

Abstract

CFT), immunodiffusion according to OUCHTERLONY (8) and immunoelectrophoresis according to GRABAR (3) as modified by SCHEIDEGGER (1 1).Strains of the 6 groups of Yersinia enterocolitica'), the 5 ty es of Yersiwere used. The lipopolysaccharide-protein antigen fractions (LPA) prepared by the methods described by REDFEARN (9) and by us (2), GRASSET lysates and 0-suspensions of the bacterial strains served as antigens.Antisera to the bacterial lysates, LPA, 0-antigenic suspensions and to cow plasma proteins were prepared by hyperimmunizing rabbits with the corresponding antigens in FREUND'S adjuvant. nia pseudotuberculosis, of Br. melitensis and of Br. ovis, is0 P ated by us,