College of Agricultural Science, Animal Health Science Department, Arba Minch University, Arba Minch, Ethiopia.
Arba Minch Zuria District, Livestock and Fishery Department, Arba Minch, Ethiopia.
J Infect Dev Ctries. 2023 Feb 28;17(2):226-235. doi: 10.3855/jidc.17553.
Salmonellosis is one of the diseases affecting chicken breeding farms in research locations. This study aimed to estimate the prevalence of Salmonella, its risk factors, and the distribution of antibiotic resistance in chicken breeding farms in and around Arba Minch town, Southern Ethiopia.
A total of 390 samples were obtained from the chicks selected using stratified random selection from the breeding farms. Each chick's rectum was sampled for cloacal swabs and fecal samples, which were later analyzed for Salmonella using microbial culture and serological methods. Drug sensitivity testing was done using disk diffusion techniques.
Salmonella isolates were found in 7/285 (2.45%) of fecal dropping and 14/105 (13.33%) of cloacal swabs. S. Anatum 6/21 (28.57%), S. Saintpaul 5/21 (23.8%), S. Typhimurium 4/21 (19.04%), S. Kentucky 4/21(19.04%), and S. Haifa 2/21 (9.52%) were the identified serotypes with a prevalence of 21/390 (5.38%) (95% CI = 2.2-8). According to a multivariate logistic regression analysis of the risk factors, the source of feed, contact with other farms, chick breed, and management were statistically significant influences on the presence of Salmonella in chicks (p < 0.05). The 8 antimicrobials tested were found to be ineffective against 90.47% of the isolates. These antimicrobials are used in both human and animal medicine.
Our findings confirmed that risk factors such as feed source, breed, contact with other farms, and management had a significant effect on the occurrence of salmonellosis in chicks, and disease control in the study area requires special attention.
沙门氏菌病是影响研究地点鸡养殖场的疾病之一。本研究旨在估计沙门氏菌在埃塞俄比亚南部阿尔巴明奇镇及其周边鸡养殖场的流行率、风险因素和抗生素耐药性分布。
从养殖场采用分层随机抽样选择的雏鸡中采集了 390 份样本。从每只小鸡的直肠采集直肠拭子和粪便样本，然后使用微生物培养和血清学方法分析沙门氏菌。使用圆盘扩散技术进行药物敏感性测试。
在 285 份粪便和 105 份直肠拭子中分别发现了 7/285（2.45%）和 14/105（13.33%）的沙门氏菌分离株。鉴定出的血清型有 6/21（28.57%）的 S. Anatum、5/21（23.8%）的 S. Saintpaul、4/21（19.04%）的 S. Typhimurium、4/21（19.04%）的 S. Kentucky 和 2/21（9.52%）的 S. Haifa，流行率为 21/390（5.38%）（95%CI=2.2-8）。根据对危险因素的多变量逻辑回归分析，饲料来源、与其他农场接触、雏鸡品种和管理对雏鸡中沙门氏菌的存在有统计学显著影响（p<0.05）。测试的 8 种抗生素对 90.47%的分离株无效。这些抗生素用于人类和动物医学。
我们的研究结果证实，饲料来源、品种、与其他农场的接触和管理等风险因素对雏鸡沙门氏菌病的发生有显著影响，研究区域的疾病控制需要特别关注。
