阿根廷育肥猪粪便中物种的鉴定与分布
Identification and distribution of species in feces from finishing pigs in Argentina.
作者信息
Carranza Alicia, Parada Julián, Tamiozzo Pablo, León Malena Flores, Camacho Pablo, Cola Gabriel Di, Corona-Barrera Enrique, Ambrogi Arnaldo, Zielinski Gustavo
机构信息
Department of Animal Pathology, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, Argentina.
National Scientific and Technical Research Council (CONICET), Córdoba, Argentina.
出版信息
Vet World. 2021 Mar;14(3):607-613. doi: 10.14202/vetworld.2021.607-613. Epub 2021 Mar 10.
BACKGROUND AND AIM
are Gram-negative, aerotolerant spirochetes that colonize the large intestine of various species of domestic animals and humans. The aim of this study was to determine the presence and distribution of different species of Brachyspira presents in feces from finishing pigs in Argentina.
MATERIALS AND METHODS
Fecal samples (n=1550) were collected from finishing pigs in 53 farms of the most important swine production areas of Argentina, and species were identified by bacteriological and molecular methods.
RESULTS
The regional prevalence of spp. was at the level of 75.5% (confidence interval 95%, 62.9-87.9), and it was lower among those farms with >1001 sows. One hundred and twenty-eight isolates of were properly identified and the species found were: , , , and . and had low prevalence (1.9% and 7.5%, respectively), was isolated from 34% of the farms and was found in 39.6%.
CONCLUSION
The present study provides epidemiological data about herd prevalence of the different species in Argentina, showing that the prevalence figure seems to be higher than that reported in other countries.
背景与目的
短螺旋体属是革兰氏阴性、兼性厌氧的螺旋体，定殖于多种家畜和人类的大肠。本研究的目的是确定阿根廷育肥猪粪便中不同短螺旋体物种的存在情况和分布。
材料与方法
从阿根廷最重要的养猪生产区的53个农场的育肥猪中采集粪便样本（n = 1550），并通过细菌学和分子方法鉴定物种。
结果
短螺旋体属的区域流行率为75.5%（95%置信区间，62.9 - 87.9），在母猪数量>1001头的农场中较低。对128株短螺旋体进行了正确鉴定，发现的物种有：、、、和。和的流行率较低（分别为1.9%和7.5%），从34%的农场中分离出，在39.6%的农场中发现。
结论
本研究提供了阿根廷不同短螺旋体物种群体流行率的流行病学数据，表明流行率似乎高于其他国家报道的水平。
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