Study About Pathogenic Bacteria Associated With Bovine Mastitis

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Safana A. S. AL-Taan
Asmaa H. AL-Jobori
Anton S. AL-Bana.

Abstract

Out of 100 raw milk samples collected from one hundred cows infected with mastitis, thirty three isolates of different types of pathogenic bacteria were isolated using different types of selective media. 


On the basis of traditional bacteriological tests, these isolates were identified as the following: 13 isolates of Staphylococcus aureus, 9 isolates of B-haemolytic Streptococci, 6 isolates of Coliform bacteria, 4 isolates of Corynebacterium pyogenes, and only one isolate Bacillus cereus. 


In addition to these isolates, a number of non-pathogenic bacteria were recovered during the isolation and they were considered as contaminants of milk such as S. epidermidis, C. bovis and B. subtilus


The total number of living bacteria present in milk samples was measured and it was ranged from (1400 to 1800) bact./ml. 


The isolates of pathogenic bacteria were tested for their sensitivity to different types of antibiotics and the results were: 100% of these isolates were sensitive to Gentamycin and Tetracycline, 11 (84.6%) isolates of S. aureus, 6(66.2%) isolates of B-hacmolytic Streptococci , 4(66.2%) isolates of Coliform bacteria and 3(75%) 


es of C. pyogenes were sensitive to Ampicillin, Penicillin, Erythromycin and Cepholexin. While Bacillus cereus isolate was resistant to all these antibiotics. 


As a result of this work, generally the bacteriological quality of this milk is acceptable due to the low number of viable count of bacteria in 


milk and the isolates showed high level of sensitivity to the antibiotics used in this study.

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How to Cite
Study About Pathogenic Bacteria Associated With Bovine Mastitis. (2004). The Iraqi Journal of Veterinary Medicine, 28(1), 227-234. https://doi.org/10.30539/ijvm.v28i1.1082
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How to Cite

Study About Pathogenic Bacteria Associated With Bovine Mastitis. (2004). The Iraqi Journal of Veterinary Medicine, 28(1), 227-234. https://doi.org/10.30539/ijvm.v28i1.1082

References

1. Olson, T. M. (1956). Elements of Dairying. The Macmillan, P: 427 - 459, 347 – 365.
2. Riffon , R.; Sayasith , k. ; Khalil , H. Dubereuil , P. ; Drolet , M.; and Lagace , J. (2001). Development of a rapid and sensitive test for identification of major pathogens in bovine mastitis by PCR. J. clinimicro .39(7), P: 2584 -9.
3. Cullor, J. S. (1997). Risk and prevention of contamination of dairy products. Rev. Sci. tech. off. Int. Epiz., 16(2), P: 472 – 481.
4. Holsinger, V. H.; Rajkowski, K. T.; and Stabel, J. R. (1997). Milk pasteurization and safety: brief history and update. Rev. SCI. tech. off. Int. Epiz., 16(2), P: 441-451.
5. Gillespie, S. H. (1994). Medical microbiology illustrated b. w. heinemann Itd. P: 234-248,263-270.
6. Duguide, j. p.; Ross, p. W.; porter, A.; Green, D. M.; and Sleigh, J. D. (1989). Mackie and Mc Crtney practical Medical Microbiology. Edrs: (Collee, J. G.; Duguid, J. P.; Fraser, A. G.; and Marmion, B.P.), 2(13), P: 300-317,374-399.432-456.
7. Oarry, J.M; Turnbull, P.C.B.; and Gibson, J.R. (1983). A color atlas of Bacillus species. Wolfe Medical Atlases-19, P: 1-6.
8. AL-Kazrajii, N.H. (1989) Evaluation of raw milk quality. Vet.jurn. 6(5), p: 90-91.
9. Jones, T.O. and Turnbull, P.C.E. (1981). Bovine mastitis caused by Bacillus Cereus. Vet. Record 108,271,P: 230.
10.Buxton, A. and Frase, G. (1977). Animal Microbiology. Black well scientific Publications. P: 157-164.

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