Author:
A.AL-Izzi S.,K. Abo N.,A. AL-Azawi W.
Abstract
Out of 107 COW milk samples, 44(41.12%) yielded bacterial growth. The isolates were identified according to their cultural, morphological and biochemical characteristics as Staphylococcus aureus (40.91%).. Escherichia coli (29.55%), Staphylococcus epidermidis (18.18%), Streptococcus uberis (9.09%) and Corynebacterium pyogenes (2.29%). Out of 18 Staphylococcus aureus isolates, ten (55.56%) were typable with a set of 23 human phages. These isolates were lysed by three or more phages. The most effective antimicrobial agents against the majority of
of Staphylococcus aureus isolates were : erythromycin, rifampicin, gentamicin, chloramphenicol, carbenicillin, cloxacillin, ampicillin, cephalothin and tetracycline as indicated by in vitro sensitivity test.
Publisher
Baghdad University College of Veterinary Medicine
Subject
Management, Monitoring, Policy and Law,Geography, Planning and Development
Reference14 articles.
1. Blood, D.C., Henderson, J.A. and Radostits, O.M. (1980). Veterinary Medicine. Fifth Ed. Bailliere Tindall London.
2. Pearson, J.K.L. and MacKie, D.P. (1979). Factors associated with the occurrence, cause and outcome of clinical mastitis in dairy cattle. Vet. Rec. 17: 456-463.
3. Meaney, W.J. (1981). Mastitis levels in spring-calving dairy heifers. Irish Vet. J. . 35: 205-209.
4. Egan, J. (1982). A study of quarter milk samples from lactating COWS in the Dublin area using the California mastitis test Irish Vet. J. 36:11-12.
5. Aungier, S.P.M. and Austin, F.H. (1987). Aninvestigation into the nature of clinical mastitis in large dairy herds in Ireland, Irish Vet. J. 41: 304-310.