Bellaver, Cláudio, Paulo Cezar Gomes, Valdomiro Costa, Elias Tadeu Fialho, and Alfredo Ribeiro de Freitas. “Copper and Virginiamycin As Swine Growth Promotors”. Pesquisa Agropecuaria Brasileira 17, no. 12 (April 16, 2014): 1789–1793. Accessed November 13, 2025. https://apct.sede.embrapa.br/pab/article/view/16428.