Joseph Omololu-Aso, Oluwaseun Oluwatoyin Omololu-Aso, Micheal T Atiene, Adekunle Adejuwon, Alexandrer Tuesday Owolabi and Arwa Shesha
Faecal shedding of cattle as well as poultry and poultry products have been implicated as a major source of Salmonella infections in humans. We sourced to isolate and identify Salmonella and Shigella species from cattle dung in different abattoir of Ile-Ife, Nigeria and to detect the route of cross-contamination of Salmonella and Shigella from animals to humans with antibiotic susceptibility of the isolates recovered. All 40 samples taken were collected from the dung of freshly killed cows which were placed within sterile plastic containers and transported to the Microbiology Laboratory. Each Sample was placed aseptically in sterile nutrient broth and incubated. Microbiological analysis was conducted with samples serially diluted and analyzed on Salmonella-Shigella agar by the direct plating method. Biochemical tests were employed to confirm the isolates including Gram staining, catalase, oxidase, urease, glucose fermentation and motility tests.
The result shown that out of the ten (10) samples collected in Odo-Eran area, Ile-Ife town, 4 (40%) samples showed Escherichia coli growth, 4 (40%) Salmonella were isolated and 2 (20%) Shigella-like organisms were isolated. At God's Love Tabernacle (GLT) area in Ile Ife town, From the 20 samples taken, 7 (35%) showed Salmonella isolates, 7 (35%) confirmed Shigella-like characteristics isolates. Six (30%) isolates left were observed to show Escherichia coli colonies. The Salmonella/Shigella isolates obtained from study areas were 100 % resistance to chloramphenicol, 75% to septrin and 10% to pefloxacin and tarivid respectively while the isolates were 80% susceptible to gentamicin and 65% to ciprofloxacin and streptomycin used. Gentamicin streptomycin and ciprofloxacin antibiotic therapeutic agents will be effective in the treatment of cattle infections caused by Salmonella and Shigella species in the study area.
Epidemiological burden of Salmonellosis is expected to be much greater in the developing parts of the world.
