国家自然科学基金项目31401049,31401050;山东省农业良种工程种质创新应用项目2014LZ;现代农业产业技术体系奶牛岗位科学家项目CARS-37;山东省农业产业技术体系牛产业创新团队项目SDAIT-12-011-02;the National Natural Science Foundation of China31401049,31401050;the Well-Bred Program of Shandong Province2014LZ;the Program of National Cow Industrial Technology SystemCARS-37;Bovine Innovation team of Shandong Province Agricultural Technology SystemSDAIT-12-011-02