Beermann, Donald H., and Frank R. Dunshea. “CÁC CHẤT HỖ TRỢ CHUYỂN HÓA (METABOLIC MODIFIERS) SỬ DỤNG TRONG CHĂN NUÔI”. Council for Agricultural Science and Technology (CAST) (November 5, 2006). Accessed August 19, 2026. https://publications.cast-science.org/CAST/article/view/154.