Caldas, E. D., Michelon, A., Foppa, L., Simonelli, S. M., Pierozan, C. R., Dario, J. G. N., Duarte, J. V. S., Silva, C. C. R., & Silva, C. A. (2020). Effect of stocking density and use of environmental enrichment materials on the welfare and the performance of pigs in the growth and finishing phases. Spanish Journal of Agricultural Research, 18(4), e0504. https://doi.org/10.5424/sjar/2020184-15946