产蛋高峰期蛋鸡亚健康评价指标体系的构建

The construction of sub-health evaluation index system for laying hens during peak laying period

[目的]产蛋高峰期是蛋鸡养殖的关键时期,构建产蛋高峰期蛋鸡亚健康评价指标体系,不仅有利于准确评估鸡群健康并根据鸡群健康状况展开精准饲养与管理调整,也可为无损监测产蛋高峰期蛋鸡健康状况提供参考指标和科学依据。[方法]本文基于对蛋鸡场调研、资料收集和专家咨询,并从鸡群的健康状况、行为表现、生产性能和环境与鸡群信息4个方面初步构建了产蛋高峰期蛋鸡亚健康评价指标集,运用专家咨询法筛选指标确立评价指标体系,通过层次分析法确定指标权重。[结果]共邀请了14位专家进行咨询,专家咨询问卷有效回收为100%,专家权威系数为0.875,肯德尔协调系数为0.386,表明专家积极性、权威程度、意见协调程度均较好,最终确立的评价指标体系包括4个一级指标,27个二级指标。健康状况、行为表现、生产性能和鸡舍环境4个一级指标的权重分别为0.254、0.245、0.253、0.248。[结论]构建的产蛋高峰期蛋鸡亚健康评价指标体系,专家咨询可靠性较好,评价指标覆盖较全面。

[Objectives]Peak laying period is a critical period of layer breeding.The construction of a sub-health evaluation index system for laying hens during peak laying period is not only conducive to accurately evaluating the health of flocks and carrying out accurate feeding and management adjustments according to the health status of the flocks,and it can also provide reference indicators and scientific basis for non-destructive monitoring of the health status of laying hens during the peak laying period.[Methods]Based on the research on laying hen farms,data collection and expert meetings,this paper initially constructed a set of evaluation indexes for sub-health of laying hens during peak laying period from four aspects,namely,health status,behavioural performance,production performance,environment and flock information of hens,and used the expert consultation method to screen the indexes to establish the evaluation index system,and determined the indexes’weights through the hierarchical analysis method.[Results]A total of 14 experts were invited for consultation,and the effective recovery of the expert consultation questionnaire was 100%,the expert authority coefficient was 0.875,and the Kendall’s coordination coefficient was 0.386,which indicated that the experts’motivation,authority,and coordination of their opinions were all better,and the final established evaluation index system included 4 first-level and 27 second-level indicators.The weights of the four first-level indicators,namely,health status,behavioural performance,production performance and henhouse environment,were 0.254,0.245,0.253 and 0.248,respectively.[Conclusions]This study constructed the evaluation index system of sub-health of laying hens during the peak laying period,with better reliability of expert consultation and more comprehensive coverage of evaluation indexes.