COMPARATIVE STUDY OF CULTURE AND PCR FOR DETECTION OF CARRIERS OF STREPTOCOCCUS EQUI IN NATURALLY INFECTED MULES IN PAKISTAN - M. Ijaz; M. S. Khan; M. A. Khan; A. Maqbool; M. M. Ali; A. Rehman; K. Mehmood; M. H. Saleem; M. Z. Shabbir (Journal of Animal and Plant Sciences, 2012)