@article{saki_naseri harsini_tabatabaei_zamani_haghight_2012,  title={Estimates of methionine and sulfur amino acid requirements for laying hens using different models},  volume={14},  ISSN={1516-635X},  url={https://doi.org/10.1590/S1516-635X2012000300008},  DOI={10.1590/S1516-635X2012000300008},  number={3},  journal={Brazilian Journal of Poultry Science},  publisher={Fundação de Apoio à Ciência e Tecnologia Animal},  author={Saki, AA and Naseri Harsini, R and Tabatabaei, MM and Zamani, P and Haghight, M},  year={2012},  month={Jul},  pages={209–216} }