Bioefficacy of the Copaiba Oil (Copaifera sp.) in Diets of Laying Hens in the Second Production Cycle in Humid Tropical Climate

Anna Carolina de Souza Hanna, Frank George Guimaraes Cruz, Joao Paulo Ferreira Rufino, Ewerton de Souza Tanaka, Ewerton Oliveira das Chagas and Jadilson Barroncas dos Santos Melo

International Journal of Poultry Science 12 ( 11 ): 647 - 652 , 2013