CAJ | 학술논문

为建立适用于现代规模猪场的猪繁殖与呼吸综合征( PRRS)风险评估方法，以猪繁殖与呼吸综合征病毒( PRRSV)传入猪场和场内循环传播的相关风险因素组成的总体风险为建模系统，将其按层次建成由2个Ⅰ级、8个Ⅱ级和29个Ⅲ级风险指标变量组成的评估指标体系，并以此为基础构建了计算各级指标变量风险值的评估系统。该评估系统通过调查问卷、实地收集和工具辅助3种指标数据采集方法获取猪场PRRS风险相关数据，并计算输出各级指标风险值，提示猪场高风险指标和单一高风险因子，为规模猪场PRRS风险管理决策提供支持。
위건립괄용우현대규모저장적저번식여호흡종합정( PRRS)풍험평고방법，이저번식여호흡종합정병독( PRRSV)전입저장화장내순배전파적상관풍험인소조성적총체풍험위건모계통，장기안층차건성유2개Ⅰ급、8개Ⅱ급화29개Ⅲ급풍험지표변량조성적평고지표체계，병이차위기출구건료계산각급지표변량풍험치적평고계통。해평고계통통과조사문권、실지수집화공구보조3충지표수거채집방법획취저장PRRS풍험상관수거，병계산수출각급지표풍험치，제시저장고풍험지표화단일고풍험인자，위규모저장PRRS풍험관리결책제공지지。
A porcine reproductive and respiratory syndrome ( PRRS) risk assessment system for large-scale pig farms was developed in this study. The system consists of porcine reproductive and respiratory syndrome virus( PRRSV) external risk factors and internal risk factors, including two level I risk indices, eight level II risk indices and twenty-nine level III risk indices. External factors were set as locations, entry of supplies, employee and service vehicles, employees and visi-tors, transportation of live pigs, transportation of feed, disposal of dead animals, manure management, facilities, bio-vec-tors, and source of pigs, etc. Internal risk factors were related to host immunity and circulation of resident viruses, inclu-ding PRRSV infection status, management practices, flow of pigs, vaccine use, other diseases challenges, and herd and site characteristics, etc. The system could show the high risk indices and high-risk single factors for pig farms by collecting risk-related data through questionair, field sur-vey and computer-assisted scoring. The establishment and application of the PRRS assessment system will support the PRRS risk management decision at the pig farm level.