畜牧兽医学报2018，Vol.49Issue(4)：659-666,8.DOI:10.11843/j.issn.0366-6964.2018.04.001
蛋壳胶护膜性状的遗传特性及其与蛋壳品质性状的关联分析
Genetic Characterization of Cuticle and Its Association with Eggshell Quality Traits
摘要
Abstract
In this study,we evaluated cuticle quality and other eggshell quality traits in the Rhode Island Red hens,and we also calculated the genetic and phenotypic correlations between cuticle quality and other eggshells quality traits,which could provide theoretical support for cuticle quality optimization and breeding in the domestic brown/pink egg layer,as well as enhancement of antibacterial properties of egg.We measured cuticle qualities of 3 283 Rhode Island Red hens (120 pedigrees) in Beijing Huadu Yukou Poultry Industry Co.LTD..Cuticle quality heritability,genetic and phenotypic correlation between cuticle quality and other eggshell quality traits were evaluated by DMU software.The results showed that the value of cuticle quality was (24.24±9.13)％,and its heritability was 0.40 (medium heritability).The values of eggshell color (I*,a*,b*),eggshell strength and eggshell thickness were (61.45±4.91),(17.79± 2.34),(30.59±2.50),(3.22±0.75) kg · cm-2 and (324.85±42.37)μm,respectively.Their heritability were from 0.39 to 0.17,which represented heritability from medium to low.Further-more,the genetic correlations between cuticle quality and eggshell color (L*,a*,b*) were-0.49,0.43 and-0.27,respectively.Both eggshell strength and eggshell thickness showed weak correlation with cuticle quality,which were 0.02 and 0.13,respectively.The genetic correlation between eggshell strength and eggshell thickness was 0.72.In conclusion,direct selection of cuticle quality (high heritability) could accelerate genetic progress and improve breeding efficiency.Selection of cuticle quality might deepen eggshell color,since it was related to the L*,a* and b* values.Besides,selection of cuticle quality would not significantly impact eggshell strength and thickness owing to low genetic correlations between them.关键词
蛋壳胶护膜/蛋壳品质性状/洛岛红纯系/遗传分析Key words
cuticle/eggshell quality traits/Rhode Island Red/genetic analysis分类
农业科技引用本文复制引用
李文博,陈霞,苑忠央,迂莹莹,吴桂琴,石凤英,杨宁,徐桂云,郑江霞..蛋壳胶护膜性状的遗传特性及其与蛋壳品质性状的关联分析[J].畜牧兽医学报,2018,49(4):659-666,8.基金项目
公益性行业(农业)科研专项基金(201303084) （农业）
国家自然科学基金(31672408) （31672408）
国家蛋鸡产业技术体系(CARS-41) （CARS-41）
教育部“创新团队发展计划”(IRT_15R62) （IRT_15R62）
