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Use of regulatory data to describe and identify risk factors for salmonid rickettsial septicaemia in Chile, 2011–2017
Aquaculture ( IF 3.9 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.aquaculture.2020.735324
Alison E. Hillman , Emma J. Zalcman , Amy L. Burroughs , Anne Meyer , Rohan J. Sadler , Ben Madin , Catriona Mackenzie , Michael P. Ward , Mark A. Stevenson , Alicia L. Gallardo Lagno , Angus R. Cameron , Brendan D. Cowled

Abstract The bacterial disease salmonid rickettsial septicaemia (SRS) has caused substantial economic losses in the salmonid aquaculture industry, particularly in Chile. Increasing understanding of the epidemiology of this disease is important for improving the productivity and sustainability of the industry: by identifying important influences on disease occurrence, interventions can be identified and optimised to minimise disease occurrence and its effect on the industry. This study aimed to describe SRS-attributed mortality across production species, time and space in the Chilean salmonid industry; identify risk factors for mortality attributed to SRS; and generate additional hypotheses for future investigations of SRS epidemiology in the Chilean salmonid industry. Regulatory data held in the Sistema de Fiscalizacion de la Acuicultura and Informe Ambiental para la Acuicultura databases of Servicio Nacional de Pesca y Acuicultura (‘Sernapesca’, the Chilean National Fisheries and Aquaculture Service) were analysed using the information-theoretic approach for risk factor analysis. Post hoc modelling generated hypotheses for future investigations. Analyses determined associations between the outcomes of SRS-attributed mortality incidence risk and rate across salmonid production cycles with a range of putative risk factors. Results indicate that salmonid production species is a key driver of the risk of a Chilean salmonid production cycle experiencing SRS-attributed mortality, and the SRS-attributed mortality rate amongst affected cycles. Compared to Atlantic salmon, rainbow trout and coho salmon production cycles were less likely to report SRS-attributed mortality (rainbow trout: incidence risk ratio = 0.17, 95% CI 0.07–0.40, p

中文翻译:

使用监管数据来描述和识别智利鲑鱼立克次体败血症的风险因素,2011-2017

摘要 细菌性疾病鲑鱼立克次体败血症(SRS)已给鲑鱼养殖业造成了巨大的经济损失,尤其是在智利。增加对该疾病流行病学的了解对于提高行业的生产力和可持续性非常重要:通过确定对疾病发生的重要影响,可以确定和优化干预措施,以最大限度地减少疾病的发生及其对行业的影响。本研究旨在描述智利鲑鱼产业中跨生产物种、时间和空间的 SRS 归因死亡率;确定 SRS 导致的死亡风险因素;并为智利鲑鱼产业中 SRS 流行病学的未来调查产生额外的假设。保存在 Sistema de Fiscalizacion de la Acuicultura 和 Informe Ambiental para la Acuicultura 的 Servicio Nacional de Pesca y Acuicultura(“Sernapesca”,智利国家渔业和水产养殖服务)数据库中的监管数据使用风险因素分析的信息理论方法进行分析. 事后建模为未来的调查生成了假设。分析确定了 SRS 归因的死亡率发生风险的结果与鲑鱼生产周期的死亡率与一系列假定的风险因素之间的关联。结果表明,鲑鱼生产物种是智利鲑鱼生产周期经历 SRS 归因死亡率以及受影响周期中 SRS 归因死亡率风险的关键驱动因素。与大西洋鲑鱼相比,
更新日期:2020-09-01
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