What is a primary method of preventing the spread of tuberculosis in animals?

Quarantine of infected individuals is a crucial method in preventing the spread of tuberculosis (TB) in animals. By isolating infected animals, the transmission of the disease to other healthy animals is significantly reduced. This containment strategy helps to break the chain of infection, ensuring that the disease does not spread within a herd or to other herds. Quarantine allows for close monitoring and management of the infected individuals, providing time for assessing the situation and implementing further control measures if necessary.

The other options, while they may play a role in overall animal health and management, do not directly focus on the immediate prevention of TB spread in the same effective way as quarantine. For example, vaccination could be a preventative measure, but it is not the primary method currently in use for TB in many animal populations. Genetic modification is not widely applicable or practical in the context of TB prevention, and simply feeding high-quality feed, while beneficial for general health, does not address the specific risk of disease transmission. Thus, quarantine stands out as the most effective primary method for controlling the spread of tuberculosis in animals.