@article{cortés_ribeiro_gianfelici_kessler_moraes_2009,  title={Study of methodological variations in apparent nutrient metabolism determination in broiler chickens},  volume={38},  ISSN={1516-3598},  url={https://doi.org/10.1590/S1516-35982009001000010},  DOI={10.1590/S1516-35982009001000010},  number={10},  journal={Revista Brasileira de Zootecnia},  publisher={Sociedade Brasileira de Zootecnia},  author={Cortés, María Esperanza Mayorga and Ribeiro, Andréa Machado Leal and Gianfelici, Mário Federico and Kessler, Alexandre de Mello and Moraes, Mariana Lemos de},  year={2009},  month={Oct},  pages={1921–1927} }