腹泻马匹粪便中气单胞菌属的流行情况。
The prevalence of Aeromonas species in feces of horses with diarrhea.
作者信息
Hathcock T L, Schumacher J, Wright J C, Stringfellow J
机构信息
Department of Pathobiology, College of Veterinary Medicine, Auburn University, AL 36849, USA.
出版信息
J Vet Intern Med. 1999 Jul-Aug;13(4):357-60. doi: 10.1892/0891-6640(1999)013<0357:tposif>2.3.co;2.
Feces collected from 40 horses with diarrhea and 34 horses without diarrhea were examined to determine if an association existed between isolation of Aeromonas spp. and diarrhea. Samples were also examined for Salmonella spp., and identification of viruses and parasite ova. Neither Salmonella spp. nor Aeromonas spp. were isolated from the feces of 34 control horses. Aeromonas spp. were isolated from feces of 22 of 40 (55%) horses with diarrhea. Salmonella spp. were isolated from feces of 8 (20%) horses, and of these, 5 (12.5%) were also positive for Aeromonas spp. Twenty-nine isolates of Aeromonas spp. were recovered from the feces of 22 diarrheic horses. Of these isolates, more than 80% were susceptible on in vitro testing to amikacin, ceftiofur, chloramphenicol, and gentamicin. All isolates were susceptible to enrofloxacin. Diarrheic horses positive for Aeromonas were significantly (P = .04) older than diarrheic horses negative for Aeromonas spp. A significantly greater number of fecal samples were positive for Aeromonas spp. during March through August than samples examined in other months (P = .014). Results of this study indicate that Aeromonas spp. should be considered as a cause of diarrhea in horses.
对40匹腹泻马和34匹未腹泻马的粪便进行检查，以确定气单胞菌属的分离与腹泻之间是否存在关联。还对样本进行了沙门氏菌属、病毒和寄生虫卵的检测。在34匹对照马的粪便中未分离到沙门氏菌属和气单胞菌属。在40匹腹泻马中，有22匹（55%）的粪便中分离到气单胞菌属。8匹（20%）马的粪便中分离到沙门氏菌属，其中5匹（12.5%）同时气单胞菌属检测也呈阳性。从22匹腹泻马的粪便中分离出29株气单胞菌属菌株。在体外试验中，这些菌株中超过80%对阿米卡星、头孢噻呋、氯霉素和庆大霉素敏感。所有菌株对恩诺沙星敏感。气单胞菌属检测呈阳性的腹泻马比气单胞菌属检测呈阴性的腹泻马年龄显著更大（P = 0.04）。3月至8月期间气单胞菌属检测呈阳性的粪便样本数量显著多于其他月份检测的样本（P = 0.014）。本研究结果表明，气单胞菌属应被视为马匹腹泻的一个病因。
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