Format

Send to

Choose Destination
J Vet Sci. 2018 Jan 31;19(1):45-50. doi: 10.4142/jvs.2018.19.1.45.

Investigation of bovine tuberculosis outbreaks by using a trace-back system and molecular typing in Korean Hanwoo beef cattle.

Author information

1
Bacterial Disease, Department of Animal and Plant Health Research, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea.
2
Department of Biomedical Laboratory Science, College of Health Science, Yonsei University, Wonju 26493, Korea.
3
Foreign Animal Disease, Department of Animal and Plant Health Research, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea.
4
Namwon Branch, Jeonbuk Livestock & Veterinary Service, Namwon 55725, Korea.
5
Department of Microbiology, College of Medicine, Yonsei University, Seoul 03722, Korea.

Abstract

Bovine tuberculosis is a chronic contagious disease responsible for major agricultural economic losses. Abattoir monitoring and trace-back systems are an appropriate method to control bovine tuberculosis, particularly in beef cattle. In the present study, a trace-back system was applied to bovine tuberculosis cases in Korean native Hanwoo beef cattle. Bovine tuberculosis was detected in three index beef cattle during abattoir monitoring in Jeonbuk Province, Korea, and the original herds were traced back from each index cow. All cattle in each original herd were subjected to tuberculin skin test. The positive rates in the tuberculin skin test were 64.6% (62 of 96), 4.8% (2 of 42), and 8.1% (3 of 37) at farms A, B, and C, respectively. On post-mortem examination of 56 tuberculin-positive cattle, 62% had granulomatous lesions, and Mycobacterium bovis was cultured from 40 (71.4%) of the cattle. Molecular typing by spoligotyping and the mycobacterial interspersed repetitive unit-variable-number tandem repeat assay revealed the genotype of the M. bovis strains from the index cattle were same as the M. bovis genotype in each original herd. The results suggest that tracing back from index cattle to the original herd is an effective method to control bovine tuberculosis in beef cattle.

KEYWORDS:

Korean Hanwoo beef cattle; bovine tuberculosis; index beef cattle; molecular typing; track-back system

PMID:
28693300
PMCID:
PMC5799399
DOI:
10.4142/jvs.2018.19.1.45
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for The Korean Society of Veterinary Science Icon for PubMed Central
Loading ...
Support Center