Lianou Daphne T, Arsenopoulos Konstantinos V, Michael Charalambia K, Mavrogianni Vasia S, Papadopoulos Elias, Fthenakis George C
Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece.
Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Microorganisms. 2023 Feb 24;11(3):571. doi: 10.3390/microorganisms11030571.
The aims of the present study were: (a) to describe the prevalence of helminth infections from pooled faecal samples from sheep flocks across Greece and (b) to evaluate flock-related factors potentially associated with the presence of these infections in the flocks. An extensive countrywide study was performed on 325 sheep farms throughout Greece; faecal samples were collected from ewes and processed for the identification of helminth parasites. Helminths were detected in samples from 92.9% of flocks; these included (16.7% of flocks), (0.6%), (2.2%), spp. (18.8%), Trichostrongylidae (85.5%), spp. (18.8%), (7.1%), spp. (20.0%) and lungworms (17.8%). Mean Trichostrongylidae counts across all flocks in the study were 215 epg. Specifically, for Trichostrongylidae, there were differences between flocks that had or had not received anthelmintics during the two months prior to sampling, as well as between flocks located in various areas of the country. In multivariable analyses, for the outcome 'high (>300) epg counts in faecal samples', the month into the lactation period at sampling and the application of reproductive control practices on the farm emerged as significant factors; for the outcome 'high proportion (>63%) of spp. in faecal samples', the availability of straw bedding emerged as a significant factor; and for the outcome 'high proportion (>63%) of in faecal samples', the age of the farmer emerged as a significant factor. For the outcome 'presence of spp. in faecal samples', the provision of finished feed (concentrate) to animals emerged as a significant factor, whilst, finally, for the outcomes 'presence of in faecal samples' and 'presence of lungworms in faecal samples,' no significant factors emerged.
(a) 描述希腊各地羊群粪便混合样本中蠕虫感染的流行情况，以及 (b) 评估可能与羊群中这些感染存在相关的羊群相关因素。在希腊全国范围内对325个养羊场进行了一项广泛的研究；从母羊采集粪便样本并进行处理，以鉴定蠕虫寄生虫。在92.9%的羊群样本中检测到蠕虫；其中包括捻转血矛线虫（占羊群的16.7%）、毛圆线虫（0.6%）、夏伯特线虫（2.2%）、食道口线虫属（18.8%）、毛圆科（85.5%）、细颈线虫属（18.8%）、马歇尔线虫（7.1%）、仰口线虫属（20.0%）和肺线虫（17.8%）。研究中所有羊群的毛圆科平均每克粪便虫卵数为215个。具体而言，对于毛圆科，在采样前两个月内接受或未接受驱虫药的羊群之间以及该国不同地区的羊群之间存在差异。在多变量分析中，对于“粪便样本中每克粪便虫卵数高（>300）”这一结果，采样时进入泌乳期的月份以及农场生殖控制措施的应用成为显著因素；对于“粪便样本中捻转血矛线虫比例高（>63%）”这一结果，秸秆垫料是否可用成为显著因素；对于“粪便样本中仰口线虫比例高（>63%）”这一结果，农民的年龄成为显著因素。对于“粪便样本中食道口线虫属存在”这一结果，向动物提供成品饲料（精饲料）成为显著因素，而最后，对于“粪便样本中马歇尔线虫存在”和“粪便样本中肺线虫存在”这两个结果，未出现显著因素。
