Prevalence of clinical and subclinical ovine mastitis caused by Staphylococcus aureus

M. Hammadi, Kh.; A. Yousif, A.

	Prevalence of clinical and subclinical ovine mastitis caused by Staphylococcus aureus
Al-Anbar Journal of Veterinary Sciences
Article 1, Volume 6, Issue 1, 2013, Pages 57-64 PDF (184.7 K)
Authors
Kh. M. Hammadi; A. A. Yousif
Abstract
The study was carried out to determine the prevalence of mastitis caused by staphylococcus aureus in 100 lactating Awassi ewes located around Baghdad. A total of 194 milk samples were collected, samples were subjected to physical and, chemical tests (California mastitis test (CMT) as well as Somatic cell count (SCC) and bacteriological examination, and the isolates conducted to antimicrobial sensitivity test. Six ewes showed clinical mastitis (a cute mastitis) in 12 halves, 4 milk samples from gives a positive results to S. aureus in percentage (33.3%) from 182 apparently normal milk samples, Fifty two samples gives positive results to CMT, 14 samples gives positive results for S. aureus isolation, The percent of subclinical mastitis was 26.9% according to CMT. Fifty milk samples from 182 samples have SCC positive (more than 500.000 cells /ml ) and 14 samples only gives positive result to S. aureus. Antibiotic susceptibility result show that isolates were highly sensitive to cefotaxime (100%), Erythromycine (100%), Ciprofloxacin (100%), Amikacin (94.1%), Ceftriaxone (88.2%), Oxacillin (88.2%), Cephalexin (76.4%), Kanamycine (52.9%), while less sensitive to others like, Pencillin G, Ampicillin, Optochin, Amoxicillin, as (17.6%), (23.5%), (29.4%), (35.2%), respectively.
Keywords
ovine; mastitis

Statistics Article View: 114 PDF Download: 76