Q. Shahzad, A. Riaza, T. Akhter, A. Sattara, J. Nazirb, A. A. K. Niazi, A. Azamc and A. U. Husnac
Buffalo Research Institute, Pattoki, District Kasur, Pakistan -55050
aDepartment of Theriogenology, University of Veterinary And Animal Sciences, Lahore, Pakistan – 54000,
bDepartment of Microbiology, University of Veterinary And Animal Sciences, Lahore, Pakistan – 54000,
cDepartment of Zoology, Pir Mehr Ali Shah Arid Agriculture University Rawalpindi-46300, Pakistan