Prevalence of Mycoplasma bovis in Respiratory Tract of Cattle Slaughtered in Balochistan, Pakistan oleh Zafar Ahmad, Shakeel Babar, Ferhat Abbas, Muhammad Arif Awan, Muhammad Shafee, Mohammad Masood Tariq, Muhammad Alam Mengal, Nadeem Rashid, Shahid Amin, Kamran Taj, Mumtaz Ali