SILVA, R. B. T. R. D., NÄÄS, I. A., MOURA, D. J., & SILVEIRA, N. A. (2007). WELFARE NORMS FOR SWINE PRODUCTION UNDER INTENSIVE REARING SYSTEM. Revista Brasileira De Engenharia De Biossistemas, 1(2), 137–145. https://doi.org/10.18011/bioeng2007v1n2p137-145