Aerobic Bacteria Isolated from Condemned Camel Livers in Southern Darfur, Sudan 1

Abstract

Abstract: The objective of this study was to estimate the magnitude of liver condamnination due to bacterial infection and to characterize aerobic bacteria causing camel liver condamnination in Nyala city, South Darfur, Sudan. Eight hundred and ten camel livers were inspected and one hundred and three liver samples were collected in 2008-2010. Bacteriological and serological methods were used to isolate and identify aerobic bacteria causing liver infection. Results showed that the bacterial lesions were found in 36 (35%) samples out of 103 condemned inspected camel livers, the others causes were hydatid cyst 37 (35.9%), fibrosis 26 (25.2%) and calcification 4 (3.9%). Bacterial lesions consist of: abscesses 22 (61.1%), caseated nodules 13 (36.1%) and one (2.8%) congestion. Out of 36 aerobically incubated samples, 29 showed bacterial growth (80.6%) and seven cultures (19.4%) showed no growth. The isolates were identified to Staphylococcus spp. 11 (37.9%) which included; Staphylococcus aureus (S. aureus) 7 (63.6%), S. haemolyticus 3 (27.3%) and one (9.1%) S. caseolyticus while, Streptococcus pyogenes was found to be nine (31.0%) and Corynebactriumpseudotuberclosissix (20.7%). Mixed cultures (Staphylococcus and Streptococcus) were found to be three (10.3%). Many bacteria seem to be caused camel liver condamnination and the most one is S. aureustherefore, camel liver need carefully inspection and awareness about consumption of raw livermust be rais