Serrano, M. P., Camara, L., Valencia, D. G., Lazaro, R., Latorre, M. A. and Mateos, G. G. (2013) “Effect of energy concentration on growth performance and carcass quality of Iberian pigs reared under intensive conditions”, Spanish Journal of Agricultural Research, 11(2), pp. 405-416. doi: 10.5424/sjar/2013112-3374.