I. A. Zahid; M. A. Muneer; M. ARSHAD(Faisalabad: Pakistan Veterinary Journal, Faculty of Veterinary Sciences, University of Agriculture, Faisalabad, 1989-10-02)
R. Raana; A. Noureen; C. S. ALI; M. Nawaz(Faisalabad: Pakistan Veterinary Journal, Faculty of Veterinary Sciences, University of Agriculture, Faisalabad, 1989-10-01)