What is the primary duty of a private practitioner in relation to bovine tuberculosis testing?

The primary duty of a private practitioner concerning bovine tuberculosis testing is to perform caudal fold injections and read results within a specified time. This procedure is essential in controlling and managing bovine tuberculosis, a critical disease that affects cattle and poses a risk to public health.

The caudal fold test involves injecting a tuberculin solution into the skin and observing the animal's reaction, specifically the swelling that develops at the injection site. The timing of reading the results is crucial, as it helps determine if the animal is positive or negative for the disease. Accurate and timely testing is a key responsibility, as it contributes significantly to the identification and control of bovine tuberculosis within herds, protecting both animal and human health.

This task directly relates to the role of private practitioners in disease management and prevention, highlighting their responsibility in maintaining livestock health and supporting public health initiatives. The other options, while relevant to various aspects of animal health, do not align with the specific duty associated with bovine tuberculosis testing. For instance, administering vaccinations or reporting cases may be part of broader public health roles, but they do not encapsulate the specific task of conducting and interpreting the caudal fold test.