不同产蛋阶段东乡绿壳蛋品质分析和综合评价  

Quality Analysis and Comprehensive Evaluation of Dongxiang Blue-Shelled Eggs at Different Laying Stages

作　　者：谢敏 龚立辉 广业兰 费丹 周瑶敏[1] 徐俊[1,2] XIE Min;GONG Lihui;GUANG Yelan;FEI Dan;ZHOU Yaomin;XU Jun(Key Laboratory of Agro-product Quality and Safety of Jiangxi Province,Institute for Quality&Safety and Standards of Agricultural Products Research,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China;Institute of Animal Husbandry and Veterinary Medicine,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China)

机构地区：[1]江西省农业科学院农产品质量安全与标准研究所,农产品质量安全江西省重点实验室,江西南昌330200 [2]江西省农业科学院畜牧兽医研究所,江西南昌330200

出　　处：《食品科学》2024年第23期187-193,共7页Food Science

基　　金：江西省技术创新引导类计划项目(科技合作专项)(20212BDH80013);江西省重点研发计划项目(20201BBF61008);农产品质量安全江西省重点实验室资助项目(20192BCD40008)。

摘　　要：为研究不同产蛋阶段东乡绿壳蛋品质变化规律,以东乡绿壳蛋鸡为研究对象,分别在产蛋前期(22周龄)、产蛋中期(39周龄)、产蛋后期(62周龄)进行蛋品质、营养成分和矿物质元素含量测定,并利用主成分分析和模糊隶属函数分析进行综合评价。结果表明:随着产蛋日龄的增加,东乡绿壳蛋的蛋品质、营养成分及矿物质元素等指标均有不同程度变化。除蛋壳颜色b*值和矿物质元素Mg(镁)差异不显著(P>0.05),其余指标均存在显著差异(P<0.05)。结合主成分分析、聚类分析和相关性分析筛选出脂肪质量分数、蛋质量、胆固醇含量、Ca含量、蛋黄颜色、哈氏单位、蛋形指数、蛋白质量分数、蛋白高度、蛋壳强度10个指标作为评价鸡蛋品质的关键指标。同时根据隶属函数分析得出结论:东乡绿壳蛋鸡在不同产蛋阶段的蛋综合品质排序为产蛋中期>产蛋前期>产蛋后期。该研究结果可为建立地方蛋鸡蛋品质标准和评价方法提供参考。To investigate the changes in the quality of Dongxiang blue-shelled eggs at different laying stages,the egg quality,nutrient composition and mineral element contents were measured at the early(22 weeks old),middle(39 weeks old)and late laying phases(62 weeks old).At the same time,principal component analysis(PCA)and fuzzy membership function(FMF)analysis were employed to comprehensively evaluate the quality of eggs.The results showed that the egg quality,nutrient components and mineral elements varied to different extents with laying age.All quality indexes except b*value and the contents of magnesium(P>0.05)changed significantly across the three laying phases(P<0.05).By the combined use of PCA,correlation analysis and cluster analysis 10 key quality indicators including fat,egg mass,cholesterol,Ca,yolk color,Haugh unit,egg shape index,protein content,egg white height,and eggshell strength were identified.From FMF analysis,it was concluded that the decreasing odor of comprehensive quality at different laying stages was middle>early>late.The results of this study provide a reference for establishing quality standards and evaluation methods for local eggs.

关 键 词：东乡绿壳蛋 品质评价 主成分分析 模糊隶属函数分析 

分 类 号：S879.3[农业科学—畜牧兽医]