Histopathological lesions of condemned kidneys of sheep and goats slaughtered in Yasuj Abattoir, Iran

This survey was carried out in a 7 months period, in slaughter house of yasuj city, the center of Kohgilouyeh and Boyerahmad Province. At this study 13206 sheep kidneys and 21350 goat kidneys were examined for presence of renal lesions macroscopically. Relative abundance of kidney condemnation in sheep and goats was determined 0.8% (106/13206) and 1.2% (265/21350), respectively. For histopathological study samples from 97 condemned kidneys of sheep and 94 condemned kidneys of goats were collected in 10% buffered formalin and sent to the laboratory of pathology. According to histopathological findings, interstitial nephritis was the most abundant condition was observed in 69 cases (71.13%) of sheep kidneys and 68 cases (72.34%) of goat kidneys. The other renal lesions observed in sheep were purulent abscess in 15 cases (15.47%), pyelonephritis in 6 cases (6.18%), nephrosis in 5 cases (5.16%)and hydatid cyst in 2 cases (2.06%). In goats, the other renal lesions were purulent abscess in 10 cases (10.64%), pyelonephritis in 4 cases (4.25%), nephrosis in 4 cases (4.25%), amyloidosis in 2 cases (2.13%), hydatid cyst in 3 cases (3.19%), infarction in 2 cases (2.25%) and congestion in 1 case (1.07%). Statistical analysis showed significant difference (P<0.05) in relation to the lesions observed in the condemned kidneys between two sexes, male and female. The results of this research showed that interstitial nephritis followed by purulent abscesses and pyelonephritis were the most abundant lesions in the condemned kidneys of sheep and goats.