SUBCLINICAL MASTITIS IN FAYOUM GOVERNORATE | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 21, Volume 74, Issue 3, September 1996, Page 869-878 PDF (2.35 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1996.429114 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| AMANY M. R. KAMEL1; MOHAMED M. BASSIONY1; YAHYA A. FARAG1; AHMED FARID2 | ||||
| 1Animal Reproduction Research Institute, Agricultural Research Centre, Giza, Egypt | ||||
| 2Faculty of Veterinary Medicine, Cairo University, Giza, Egypt | ||||
| Abstract | ||||
| Subclinical mastitis is a serious form of mastitis which affects the dairy herds, but without any clinical symptoms on the affected animal which usually appears healthy. In the present study, California mastitis test (CMT) proved to be an efficient rapid field test for detection of subclinical mastitis. When applied on 720 milk samples collected from 180 dairy cows, 320 (44.4%) were positive (++) to the test. The bacteriological examination of the 320 quarter milk samples revealed that staphylococci were the most predominant (62.8%), followed by streptococci, members of Gram-negative bacilli, corynebacteria and anthracoiries in an incidence of (40.9%), (40.6%), (5.9%) and (1.7%), respectively. However, the season and age of the animals seem to influence the incidence of different secured microorganisms. The antibiogram of the isolated bacteria revealed that gentamycin followed by chloramphenicol and / or oxytetracycline were the most effective antibiotics. | ||||
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