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当前位置: 首页 > 文章 > 石斑鱼虹彩病毒病发生风险评估模型的建立和验证 水产学报 2022,46 (1) 85-94
Position: Home > Articles > Mechanism of oligochitosan improving non-specific immunity of Epinephelus fuscoguttatus(♀)× E. lanceolatu(♂) Journal of Fisheries of China 2022,46 (1) 85-94

石斑鱼虹彩病毒病发生风险评估模型的建立和验证

作  者：
刘泽天;张馨;黄晓红;黄友华;秦启伟
单  位：
华南农业大学海洋学院海洋生物资源保护与利用粤港澳高校联合实验室广东省水产免疫与健康养殖工程技术研究中心
关键词：
石斑鱼;虹彩病毒病;风险评估模型;Delphi法;层次分析法
摘  要：
为评估石斑鱼养殖过程虹彩病毒病发生的风险,实验结合Delphi法和层次分析法(analytic hierarchy process, AHP)构建新加坡石斑鱼虹彩病毒(SGIV)发生的风险评估模型。风险因素评估指标体系包括1个目标层(石斑鱼虹彩病毒病发生风险),5个准则层(水质、石斑鱼健康状况、饲养管理、养殖模式和养殖环境)和20个指标层风险因素(水温、pH、溶解氧、氨氮、病毒感染、细菌感染等)。准则层风险因素权重值集合为W={0.129 8,0.367 2,0.173 3,0.032 7,0.297 1},指标层风险因素中病毒感染(0.248 5)、邻近区域发病情况(0.138 4)、水温(0.112 3)和养殖密度(0.105 0)等权重值较高,推测它们是影响石斑鱼虹彩病毒病暴发的高风险因素。进一步实验室模拟感染实验结果表明,养殖密度、病毒感染剂量及养殖温度均显著影响鱼体内新加坡石斑鱼虹彩病毒(SGIV)的复制及实验鱼死亡率。上述结论和评估模型中推定的高风险因素相吻合,说明该模型可用于石斑鱼养殖过程中虹彩病毒病发生的风险评估。
译  名：
Mechanism of oligochitosan improving non-specific immunity of Epinephelus fuscoguttatus(♀)× E. lanceolatu(♂)
作  者：
LIU Zetian;ZHANG Xin;HUANG Xiaohong;HUANG Youhua;QIN Qiwei;College of Marine Sciences, South China Agricultural University, University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, Guangdong Aquatic Animal Immunity and Health Aquaculture Engineering Technology Research Center;
关键词：
Epinephelus sp.;;iridovirus disease;;risk assessment model;;Delphi method;;analytic hierarchy process
摘  要：
Singapore grouper iridovirus(SGIV), one of the most important viral pathogens in grouper, has caused great economic losses to grouper industry. To evaluate the risk of iridovirus disease in grouper aquaculture, a risk assessment model of grouper iridovirus disease was established using Delphi method and Analytic Hierarchy Process(AHP) in this study. The evaluation index system consisted of 1 target level(risk of grouper iridovirus disease), 5 criterion layers(including water quality, grouper health status, feeding management, aquaculture mode and aquaculture environment), and 20 risk factors at the index level(including water temperature, pH, dissolved oxygen, ammonia nitrogen, iridovirus infection, bacterial infection, etc.). The weight values of 5 criterion-level risk factors was W= {0.129 8, 0.367 2, 0.173 3, 0.032 7, 0.297 1}. The higher weight values of risk factors, including virus infection(0.248 5), incidence in neighboring areas(0.138 4), water temperature(0.112 3) and aquaculture density(0.105 0), respectively, suggested that these factors might be crucial for the incidence of grouper iridovirus disease in aquaculture. Consistently, the infection experiments in laboratory confirmed that virus dose, density, and temperature all significantly affected the virus replication and the mortality of the fish. Thus, it was proposed that our risk assessment model could be used to assess the risk of iridovirus disease in grouper aquaculture.

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