@article{tan_luo_wang_liu_2022,  title={Effect of Dietary Tetramethylpyrazine on Egg Production, Nutrient Retention and Cecal Bacterial Diversity in Aged Laying Hens},  volume={24},  ISSN={1516-635X},  url={https://doi.org/10.1590/1806-9061-2021-1524},  DOI={10.1590/1806-9061-2021-1524},  number={3},  journal={Brazilian Journal of Poultry Science},  publisher={Fundação de Apoio à Ciência e Tecnologia Animal},  author={Tan, Y and Luo, Y and Wang, J and Liu, N},  year={2022},  pages={eRBCA-2021-1524} }