基于系统多层次灰色关联熵的奶牛布鲁菌病风险评估

目的]探究影响奶牛布鲁菌病风险评估的主要因素及其影响顺序。方法]从饲养与调入、繁育、饲养环境、混养情况4个方面,设定了评价指标体系,选取3个有代表性的地区进行了调查,应用系统多层次灰色关联熵分析方法进行奶牛布鲁菌病风险评估。结果]一级指标对奶牛布鲁菌病风险的影响顺序为:饲养与调入>饲养环境>混养情况>繁育;二级指标对奶牛布鲁菌病风险的影响顺序为:U32>U12>U11>U31>U21>U42>U43>U23>U22>U41;3个有代表性的地区奶牛布鲁菌病的风险水平为:A省份>B省份>C省份。结论]该研究为合理评估不同地区的奶牛布鲁菌病风险水平提供了理论依据。

Risk Assessment of Dairy cattle Brucellosis Based on System Multi-level Gray Relational Entropy

Objective] The paper was to explore the major factors affecting dairy cattle brucellosis risk assessment and their value order.Method]The evaluation index system was set in four dimensions of feeding and loading cow,breeding,rearing environment and polyculture situation.Three representative regions were selected to investigate,and system multi-level gray relational entropy analysis method was applied to analyze dairy cattle brucellosis risk assessment.Result ] The affecting order of the first level factors on dairy cattle brucellosis risk was feeding and loading cow > rearing environment > polyculture situation > breeding;the affecting order of the second factors was U32>U12>U11>U31>U21>U42>U43>U23>U22>U41;dairy cattle brucellosis risk level of 3 representative areas was A province> B province> C province.Conclusion] The paper provided theoretical basis for reasonable evaluation of dairy cattle brucellosis risk in different regions.