海兰褐蛋鸡产蛋高峰至后期蛋壳品质的变化特征

马玲玲,冯嘉,王晶,齐广海,马友彪,武书庚,张海军,邱凯

The Changes of Eggshell Quality in the Laying Cycle of Hy-Line Brown Layers

MA LingLing,FENG Jia,WANG Jing,QI GuangHai,MA YouBiao,WU ShuGeng,ZHANG HaiJun,QIU Kai

表3 蛋壳品质主成分载荷分析

Table 3 Analysis of principal component loading of eggshell quality properties

项目 Items 主成分 Principal components PC1 PC2 X-exp2 64% 23% 参数 Parameters 蛋壳强度 Eggshell strength -0.428 0.262 蛋壳重 Eggshell weight -0.326 -0.519 蛋壳厚度 Eggshell thickness -0.187 -0.440 蛋壳面积 Eggshell surface area 0.343 -0.512 蛋壳比例 Eggshell percentage -0.454 -0.134 蛋壳韧性 Fracture toughness -0.419 0.335 蛋壳指数 Eggshell index -0.420 -0.276