Porcine Respiratory Disease Complex is a complex condition that results in economic losses for producers and health problems for growing pigs. The pathogens involved may include viruses, bacteria, or mycoplasmas. Furthermore, environmental stressors associated with farm management can affect the animals’ health. Various respiratory diseases can act as triggers either independently or, more frequently, synergistically to produce a compounded effect. The prevalence and distribution of these diseases differ based on the scientific production unit, both within and across various regions. In this study, we examined the respiratory organs (lungs, tonsils, and bronchial lymph nodes) from 108 pigs as our research subjects. A comprehensive gross examination was conducted, and any lesions showing abnormalities were recorded. The most frequently observed microscopic lesions were indicative of interstitial pneumonia, broncho-interstitial pneumonia, and bronchopneumonia, regardless of the underlying cause, particularly in the Hassan region.

Highlights

• To understand the distribution pattern of porcine respiratory disease
• Major microscopic lesions were indicative of interstitial pneumonia, broncho-interstitial pneumonia, and bronchopneumonia.