International Journal of Dairy Science and Technology Vol. 2(1), pp. 078-080, January, 2015.© Advanced Scholars Journals

Short Communication

Separation of Mycobacterium tuberculosis complex (MTBC) from dairy cows in the China region

Han Ming

Department of Animal Science , Faculty of Agricultural Science, City University of Hong-Kong, Hong-Kong, China.

E-mail:[email protected]

Accepted 01 December, 2014

Abstract 

Eleven thousand five hundred and eighty non-blood samples from dairy cows were subjected to mycobacterium culture and genotyping. As a result, a total of 142 isolates of Mycobacterium tuberculosis complex (MBTC) were identified. Among them, 65 were Mycobacterium tuberculosis, while 77 Mycobacterium bovis. The genotype of M. tuberculosis strains was mainly Beijing family. In addition, the isolation rates of MTBC were 33.89% for lung lymph nodes, 2.81% for nasal swabs, and 3.95% for pharyngeal swabs from cattle positive to tuberculin skin test, respectively. This evidence implied that M. tuberculosis infection in cattle is a new risk to public health and should be paid more attention.

Key Words: Mycobacterium tuberculosis complex, cows, tuberculosis, zoonosis.