@article{gao_liu_geng_lei_han_zhou_liu_cao_li_li_2020,  title={Effect of Plant Essential Oil on Growth Performance and Immune Function During Rearing Period in Laying Hens},  volume={22},  ISSN={1516-635X},  url={https://doi.org/10.1590/1806-9061-2019-1244},  DOI={10.1590/1806-9061-2019-1244},  number={3},  journal={Brazilian Journal of Poultry Science},  publisher={Fundação de Apoio à Ciência e Tecnologia Animal},  author={Gao, J and Liu, W and Geng, B and Lei, Q and Han, H and Zhou, Y and Liu, J and Cao, D and Li, H and Li, F},  year={2020},  pages={eRBCA-2019-1244} }