Oliveira, D.H. de et al. (2018) “Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca:available P ratios”, Pesquisa Agropecuaria Brasileira, 53(11), pp. 1222–1229. doi:10.1590/S1678-3921.pab2018.v53.26199.