Comparison Of Prevalence And Antimicrobial Sensitivity Of Salmonella typhimurium In Apparently Healthy Cattle And Goat In Sango-Ota, Nigeria

Abstract

Salmonella typhimurium has been extensively incriminated worldwide as common causes of Salmonellosis in humans, with food-animals serving as important reservoirs. This study was aimed at determining and comparing the prevalence of Salmonella typhimurium isolated from faeces of goats and cattle in Sango-Ota and also at determining the antimicrobial sensitivity of the isolated organisms. A total of 157 fresh faecal samples (50 from goat and 107 from cattle) were examined for the presence of Salmonella typhimurium using standard microbiological and biochemical methods. 22 (14%) of the total samples were positive for Salmonella typhimurium and 13 (8.28%) were positive for Salmonella spp. 19 (86.4%) of Salmonella typhimurium were isolated from cattle while 3 (13.6%) from goats while 12 (92.31%) of Salmonella spp were isolated from cattle while 1 (7.69%) from goats. Other organisms isolated were Citrobacter spp, Providencia spp, Pseudomonas spp, Proteus spp, Klebsiella spp, Yersinia spp, Morganella spp, Enterobacter spp, Escherichia coli and Serratia spp. Antibiotic susceptibility test revealed that majority of the isolates were susceptible to ofloxacin, ciprofloxacin, pefloxacin, gentamicin, and nalidixic acid. A majority of Salmonella typhimurium, Salmonella spp, and other bacterial isolates were susceptible to all fluoroquinolones used in this study. A majority of the isolates were resistant to amoxicillin, ampicillin, augmentin, cotrimoxazole, streptomycin, tetracycline, and all cephalosporins used in this study. Salmonella typhimurium was present in both cattle and goat faeces in Sango-Ota and therefore if food from these sources are not properly handled it could lead to spread of the organism and occurrence of food borne salmonellosis.