Mycoplasmal Pneumonia primarily affects which part of a pig's respiratory system?

Mycoplasmal Pneumonia primarily affects the lungs of pigs. This disease is caused by the bacterium Mycoplasma hyopneumoniae, which specifically targets the lung tissue, leading to lesions and respiratory issues. The infection results in a chronic bronchopneumonia characterized by inflammation and damage in the lungs, which is critical for gas exchange and overall respiratory function.

While the throat, bronchi, and nasal passages are important parts of the respiratory system, Mycoplasmal Pneumonia is notably associated with the lungs where the most significant pathological changes occur. The presence of Mycoplasma in the lower respiratory tract can lead to serious complications such as secondary bacterial infections, further confirming the lungs as the primary site affected by this disease. Understanding this can help in managing and preventing respiratory diseases in pigs, thereby improving animal health and productivity.