Pimentel, L.R. et al. 2014. Inclusion of crude glycerin in the diet of dairy cows on intake, milk yield and composition. Semina: Ciências Agrárias. 35, 3 (Jun. 2014), 1439–1446. DOI:https://doi.org/10.5433/1679-0359.2014v35n3p1439.