Poppe C, Kolar J J, Demczuk W H, Harris J E
Health of Animals Laboratory, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada.
Can J Vet Res. 1995 Oct;59(4):241-8.
A study was conducted to determine the antibiotic resistance and biochemical characteristics of 2690 Salmonella strains belonging to 52 serovars and isolated from environmental and feed samples from 270 turkey flocks in Canada. Resistance of the Salmonella strains to the aminoglycoside antibiotics varied widely; none of the strains were resistant to amikacin, 14.2% were resistant to neomycin, 25.8% were resistant to gentamicin, and 27.7% of the strains were resistant to kanamycin. Most strains (97.6%) were resistant to the aminocyclitol, spectinomycin. Regarding resistance to the beta-lactam antibiotics, 14.3% and 14.4% of the strains were resistant to ampicillin and carbenicillin, respectively, whereas only 5 (0.2%) of the strains were resistant to cephalothin. None of the strains were resistant to the fluoroquinolone ciprofloxacin or to polymyxin B. Resistance to chloramphenicol and nitrofurantoin was found in 2.4% and 7% of the strains, respectively. Only 1.7% of the strains were resistant to the trimethoprimsulfamethoxazole combination, whereas 58.1% were resistant to sulfisoxazole. Thirty-eight percent of the strains were resistant to tetracycline. Salmonella serovars differed markedly in their drug resistance profiles. Biochemical characterization of the Salmonella showed that the S. anatum, S. saintpaul and S. reading serovars could be divided into distinct biotypes.
开展了一项研究,以确定从加拿大270个火鸡群的环境和饲料样本中分离出的、属于52个血清型的2690株沙门氏菌的抗生素耐药性和生化特性。沙门氏菌菌株对氨基糖苷类抗生素的耐药性差异很大;没有菌株对阿米卡星耐药,14.2%的菌株对新霉素耐药,25.8%的菌株对庆大霉素耐药,27.7%的菌株对卡那霉素耐药。大多数菌株(97.6%)对氨基环醇类抗生素壮观霉素耐药。关于对β-内酰胺类抗生素的耐药性,分别有14.3%和14.4%的菌株对氨苄西林和羧苄西林耐药,而只有5株(0.2%)对头孢噻吩耐药。没有菌株对氟喹诺酮类环丙沙星或多粘菌素B耐药。分别有2.4%和7%的菌株对氯霉素和呋喃妥因耐药。只有1.7%的菌株对甲氧苄啶-磺胺甲恶唑合剂耐药,而58.1%的菌株对磺胺异恶唑耐药。38%的菌株对四环素耐药。沙门氏菌血清型在其耐药谱方面有显著差异。沙门氏菌的生化特性表明,鸭沙门氏菌、圣保罗沙门氏菌和里丁沙门氏菌血清型可分为不同的生物型。