Oliveira, K.A. et al. 2018. Nutritional and metabolic parameters of sheep fed with extrused roughage in comparison with corn silage. Semina: Ciências Agrárias. 39, 4 (Aug. 2018), 1795–1804. DOI:https://doi.org/10.5433/1679-0359.2018v39n4p1795.