Pathological changes of liver and lung of slaughtered goats in Rajshahi Metropolitan area of Bangladesh

A cross sectional study was carried out in the abattoirs of the Rajshahi Metropolitan area from where a total of randomly selected 131 samples (70 livers and 61 lungs) of goats were investigated by gross and microscopic examination. The purpose of the study was to determine the status vital organs e.g. liver and lungs of goat from public health perspective. Among 131 samples, 12 samples (9.16%) showed gross changes in liver and lungs. The changes in liver were bulging, flaccid and darkish discoloration with loose turbid capsule. It contained hemorrhage, congestion with rounded corners and nodular structure in one liver. Lungs lesions were congestion, hemorrhage, fibrin deposition and hepatization. Histo-pathologically, congestion of blood vessels, fibrosis and immense leucocytic infiltration were observed in affected liver. On the other hand, diffuse leucocytes mainly neutrophils infiltrated within the bronchioles and lung parenchyma in affected lung were observed. These changes in liver and lungs might be due to infectious and non-infectious agents. Percent lesions were 11.11%, 5.77%, 5.71% and 23.53% in 1-2, 2-3, 3-4 and >4 years of age respectively. Black Bengal goats were more affected (9.57%) compared to Jamunapari (8.11%) where female goats (10.34%) were more affected than male goats (6.82%). Goats were more affected in rainy season (11.36%) compared to winter (8.7%) and summer (7.32%). Presence of lesion determined by gross and microscopic characteristics in this study deserve further investigation causal agents  to diagnose and surveillance of the prevailing diseases for ensuring food safety.