BTB testing refers to using tuberculin in skin testing to screen cattle for bovine tuberculosis (bTB). This test is a crucial step in identifying infected animals and controlling the spread of the disease.
In essence, BTB testing is a diagnostic procedure used to detect Mycobacterium bovis, the bacterium that causes bovine tuberculosis, in cattle. The process generally involves injecting a small amount of tuberculin (a purified protein derivative of M. bovis) into the skin of the animal. The injection site is then observed for a reaction, such as swelling or redness, which would indicate a positive result and suggest the presence of the disease.
Key aspects of BTB testing include:
- Purpose: To identify cattle infected with bovine tuberculosis.
- Method: Intradermal injection of tuberculin.
- Result Interpretation: Observation of the injection site for a reaction.
- Consequence of Positive Result: Infected animals are typically removed from the herd to prevent further spread of the disease (test and slaughter/segregation).
BTB testing is a vital tool for managing and controlling bovine tuberculosis in cattle populations. Regular testing helps to reduce the prevalence of the disease, protecting both animal health and the agricultural economy.
