School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK.
Vet J. 2012 Jun;192(3):390-7. doi: 10.1016/j.tvjl.2011.08.004. Epub 2011 Sep 9.
A telephone survey of 600 farmers throughout Great Britain and Ireland was conducted in order to characterise helminth control practices, and identify factors correlated with perceived anthelmintic failure. Overall, 93% of surveyed farmers routinely treated their sheep against nematodes, 67% against liver fluke and 58% against tapeworms. Anthelmintic resistance in nematodes was perceived by farmers to be present on 10% of farms. Farmers who dosed ewes at mating were more likely to have observed anthelmintic failure, than those who were aware of national guidelines on parasite control. However, objective assessment of anthelmintic efficacy had only been undertaken on 19% of farms. Ewes were treated at mating and lambing on 63% and 62% of farms, respectively. On average, lambs were treated 3.6 times annually, depending on geographical region and on dates of lambing and finishing. Although 'quarantine' treatments were widely administered to bought-in stock, these were appropriately applied in only 3% of cases. This study provides baseline data against which the impact of future anthelmintic information campaigns can be assessed; it will facilitate the development of rational, farm-level mathematical models in support of sustainable parasite control, and will aid in the design of farm management practices that prolong the effective lifespan of novel classes of anthelmintic.
为了描述驱虫控制实践，并确定与驱虫失败相关的因素，在英国和爱尔兰对 600 名农民进行了电话调查。总体而言，93%的受访农民经常对绵羊进行线虫驱虫，67%进行肝片吸虫驱虫，58%进行绦虫驱虫。农民认为 10%的农场存在线虫抗药性。在配种时给母羊驱虫的农民比那些了解寄生虫控制国家指南的农民更有可能观察到驱虫失败。然而，只有 19%的农场进行了驱虫效果的客观评估。在 63%和 62%的农场，母羊在配种和产羔时进行了治疗。平均而言，根据地理位置和产羔日期以及育肥日期，羔羊每年接受 3.6 次治疗。尽管对购入的牲畜广泛进行了“隔离”处理，但只有 3%的情况得到了适当的应用。本研究提供了基准数据，可据此评估未来驱虫信息宣传活动的影响；它将有助于开发合理的、基于农场层面的数学模型，以支持可持续的寄生虫控制，并有助于设计延长新型驱虫药物有效寿命的农场管理实践。
