S. Uallah, T. Ahmad, M. Q. Bilal¹, Zia-ur-Rahman², G. Muhammad and S. U. Rahman³

Department of Clinical Medicine and Surgery, ¹Department of Livestock Management, ²Department of Veterinary Physiology and Pharmacology, ³Department of Veterinary Microbiology, University of Agriculture, Faisalabad, Pakistan.

    The present study was conducted under field conditions to determine the effect of severity of mastitis on the milk protein and fat contents. For this purpose, 150 buffaloes, having almost same stage of lactation (third to fourth month post calving) and parity (second to third), were selected randomly from District Jhang. Milk protein and fat contents were determined by using Formol and Gerber methods, respectively. The severity of mastitis was graded as P1, P2 and P3 by surf field mastitis test. Average protein (3.85 ± 0.76%) and fat (5.01 ± 0.19%) contents were maximum in the milk of buffaloes that were negative for mastitis. However, these contents decreased with the severity of mastitis from 3.56 ± 0.10 to 3.14 ± 0.10% for protein and 4.91 ± 0.17 to 4.39 ± 0.15% for fat.