Santos, E. L.; da Silva, F. C. B.; Pontes, E. da C.; Lira, R. C.; Cavalcanti, M. C. A. Residue of the Process Red Propolis Extract in Commercial Ration on Performance of Nile Tilapia Fingerlings (Oreochromis Niloticus). Com. Sci. 2013, 4, 179-185.