Vilar María J, Peña Francisco J García, Pérez Iratxe, Diéguez Francisco J, Sanjuán María L, Rodríguez-Otero José L, Yus Eduardo
Instituto de Investigación y Análisis Alimentarios, Facultad de Veterinaria, Universidad de Santiago de Compostela, España.
Berl Munch Tierarztl Wochenschr. 2010 Jan-Feb;123(1-2):58-62.
Bacteria from genera Listeria, Campylobacter and Arcobacter are potentially zoonotic pathogens for humans and they may be detected in dairy cattle farms. In this study the presence of these bacteria was considered in dairy cattle farms in Galicia (northwest of Spain). In the first part of the study, bulk tank milk samples were collected to determine the herd prevalences of Listeria spp. in 98 dairy farms. Additionally 83 silage samples and 97 faeces samples of lactating cows were collected. L. monocytogenes was detected in 6.1%, 9.3% and 6.0% of these samples, respectively. With regard to Campylobacter spp. and Arcobacter spp., 254 faecal samples were collected on 89 dairy farms. Campylobacter spp. was found with a herd prevalence of 36%. It was also confirmed in 20.5% of dairy cattle faecal samples. Arcobacter spp. was isolated in 68.5% of the farms and in 41.7% of faecal samples, with A. cryaerophilus being the most frequently identified species. The results related to the prevalence of the bacteria included in this study confirm their presence in high numbers in different types of biological samples from dairy farms, and suggest that more epidemiological studies regarding this bacteria need to be performed.
李斯特菌属、弯曲杆菌属和弓形杆菌属的细菌是对人类具有潜在人畜共患病风险的病原体，在奶牛场中可能会检测到这些细菌。在本研究中，对西班牙西北部加利西亚地区的奶牛场中这些细菌的存在情况进行了调查。在研究的第一部分，采集了大罐牛奶样本，以确定98个奶牛场中李斯特菌属的畜群流行率。此外，还采集了83份青贮饲料样本和97份泌乳奶牛的粪便样本。在这些样本中，分别有6.1%、9.3%和6.0%检测到了单核细胞增生李斯特菌。对于弯曲杆菌属和弓形杆菌属，在89个奶牛场采集了254份粪便样本。弯曲杆菌属的畜群流行率为36%，在20.5%的奶牛粪便样本中也得到了证实。弓形杆菌属在68.5%的农场和41.7%的粪便样本中被分离出来，嗜冷弓形杆菌是最常鉴定出的菌种。本研究中有关这些细菌流行率的结果证实了它们在奶牛场不同类型生物样本中的大量存在，并表明需要对这种细菌进行更多的流行病学研究。
