Barriga, F. A., Gava, A. J., Andrade, A. N. de, Ávila, L., & Dias, P. G. de O. (2014). Synthetic pigments as sources of egg yolk pigmentation. Pesquisa Agropecuaria Brasileira, 10(4), 13–17. https://doi.org/10.1590/S1678-3921.pab1975.v10.17068