Comparison of modified decontamination methods with culture systems for primary isolation of Mycobacterium bovis from bovine tissues | ||
| Benha Veterinary Medical Journal | ||
| Article 7, Volume 30, Issue 1, March 2016, Pages 59-67 PDF (341.97 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/bvmj.2016.31346 | ||
| Authors | ||
| Nasr E. A.1; Marwah M.1; Abdel Rahman M.1; Shafeek H.2 | ||
| 1Department of Bacterial Diagnostic Products (Tuberculosis), Veterinary Serum and Vaccine Research Institute, Abassia, Cairo, Egypt | ||
| 2General Organization of Veterinary Service, Giza | ||
| Abstract | ||
| A definitive diagnosis of M. bovis infection in animals depends on the isolation of the organism, as the optimum condition for the primary isolation of M. bovis infection has not been determined. In this study a total number of 2550 cattle from different governorates in Egypt were tested by Single Intradermal Cervical (SID) tuberculin skin test. Positive reacted cattle (no= 42, 1.6%) were slaughtered and suspected lesions were collected, these samples were decontaminated by using three different methods, which were 0.75 % Hexadecyl Pyridinium Chloride (HPC), 5% oxalic acid and 6 % sulphuric acid. Isolation of mycobacteria from 42 samples by using these decontaminated methods were of 34 (80.9 %), 30 (71.4 %) and 28 (66.6 %), respectively. So it could be concluded that using HPC method as decontaminated agent revealed high rate of isolation of mycobacteria with less contamination (7.1 %) than the other two methods | ||
| Keywords | ||
| Mycobacterium bovis – HPC- decontamination – oxalic acid – sulphuric acid | ||
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