Dias, Francisca Mônica Couras, et al. “Histologic Changes in Liver Tissue of Sheep Fed Spineless Cactus Resistant to Dactylopius Opuntiae ”. Semina: Ciências Agrárias, vol. 43, no. 6, Nov. 2022, pp. 2425-36, doi:10.5433/1679-0359.2022v43n6p2425.