School of Life Science and Engineering Southwest University of Science and Technology Mianyang 621000 China;
School of Life Science and Engineering Southwest University of Science and Technology Mianyang 621000 ChinaFeng Guangde Laboratory of Tie Qi Li Shi Group Mianyang 621000 China;
Laying hens in late laying period; Xylooligosaccharide(XOS); Probiotics(PRO); Production performance; Egg quality;