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首页> 外文期刊>Preventive Veterinary Medicine >Assessing the impact of tailored biosecurity advice on farmer behaviour and pathogen presence in beef herds in England and Wales
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Assessing the impact of tailored biosecurity advice on farmer behaviour and pathogen presence in beef herds in England and Wales

机译:评估量身定制的生物安全建议对英格兰和威尔士牛肉群中农民行为和病原体存在的影响

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The term 'biosecurity' encompasses many measures farmers can take to reduce the risk of pathogen incursion or spread. As the best strategy will vary between settings, veterinarians play an important role in assessing risk and providing advice, but effectiveness requires farmer acceptance and implementation. The aim of this study was to assess the effectiveness of specifically-tailored biosecurity advice packages in reducing endemic pathogen presence on UK beef suckler farms. One hundred and sixteen farms recruited by 10 veterinary practices were followed for three years. Farms were randomly allocated to intervention (receiving specifically-tailored advice, with veterinarians and farmers collaborating to develop an improved biosecurity strategy) or control (receiving general advice) groups. A spreadsheet based tool was used annually to attribute a score to each farm reflecting risk of entry or spread of bovine viral diarrhoea virus (BVDV), bovine herpesvirus-1 (BHV1), Mycobacterium avium subsp. paratuberculosis (MAP), Leptospira interrogans serovar hardjo (L. hardjo) and Mycobacterium bovis (M. bovis). Objectives of these analyses were to identify evidence of reduction in risk behaviours during the study, as well as evidence of reductions in pathogen presence, as indications of effectiveness. Risk behaviours and pathogen prevalences were examined across study years, and on intervention compared with control farms, using descriptive statistics and multilevel regression. There were significant reductions in risk scores for all five pathogens, regardless of intervention status, in every study year compared with the outset. Animals on intervention farms were significantly less likely than those on control farms to be seropositive for BVDV in years 2 and 3 and for L. hardjo in year 3 of the study. Variations by study year in animal-level odds of seropositivity to BHV1 or MAP were not associated with farm intervention status. All farms had significantly reduced odds of BHV1 seropositivity in year 2 than at the outset. Variations in farm-level MAP seropositivity were not associated with intervention status. There were increased odds of M. bovis on intervention farms compared with control farms at the end of the study. Results suggest a structured annual risk assessment process, conducted as a collaboration between veterinarian and farmer, is valuable in encouraging improved biosecurity practices. There were some indications, but not conclusive evidence, that tailored biosecurity advice packages have potential to reduce pathogen presence. These findings will inform development of a collaborative approach to biosecurity between veterinarians and farmers, including adoption of cost-effective strategies effective across pathogens. (C) 2016 Elsevier B.V. All rights reserved.
机译:“生物安全”一词涵盖了农民可以采取的减少病原体入侵或传播风险的许多措施。由于最佳策略会因环境而异,因此兽医在评估风险和提供建议方面起着重要作用,但是有效性要求农民接受和实施。这项研究的目的是评估专门定制的生物安全建议包在减少英国肉牛养殖场中地方病原体存在方面的有效性。通过10位兽医实践招募的116个农场进行了三年跟踪。将农场随机分配给干预(接受专门定制的建议,与兽医和农民合作以制定改进的生物安全策略)或控制(接受一般建议)组。每年使用基于电子表格的工具为每个农场评分,以反映牛病毒性腹泻病毒(BVDV),牛疱疹病毒1(BHV1),鸟分枝杆菌亚种进入或传播的风险。副结核病(MAP),问号钩端螺旋体血清型哈德霍(L. hardjo)和牛分枝杆菌(牛分枝杆菌)。这些分析的目的是确定研究期间风险行为减少的证据,以及病原体减少的证据,以证明其有效性。在整个研究年度中,使用描述性统计数据和多级回归对风险行为和病原体流行情况进行了检查,并与对照农场进行了干预。与开始时相比,在每个研究年度中,无论干预状态如何,所有五种病原体的风险评分均显着降低。在研究的第2年和第3年,干预农场中的动物对BVDV血清阳性的可能性明显低于对照农场,而在第3年时,其对L. hardjo的血清阳性的可能性则大大降低。研究水平上动物对BHV1或MAP血清阳性阳性几率的变化与农场干预状态无关。与开始时相比,所有农场在第2年中BHV1血清阳性的几率都大大降低。农场一级MAP血清阳性的变化与干预状态无关。在研究结束时,与对照农场相比,干预农场中牛分枝杆菌的几率增加。结果表明,兽医和农民之间的协作进行的年度结构化风险评估过程,对于鼓励改善生物安全措施非常有价值。有迹象表明,但没有确凿的证据表明,量身定制的生物安全建议包可以减少病原体的存在。这些发现将为兽医和农民之间生物安全合作方法的发展提供参考,包括采用对病原体有效的具有成本效益的策略。 (C)2016 Elsevier B.V.保留所有权利。

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