4. Discussion
Although lignosulfonate addition modified the chemical composition of the concentrates fed, Neves et al. (2009) reported
no effect of lignosulfonate on canola seed composition. However the effects of pelleting on the chemical composition of our
concentrates based on sunflower seeds is in agreement with heat treatments such as extrusion increasing DM content and
decreasing CP content of canola seeds (Neves et al., 2009). In contrast, it is inconsistent with previous results that showed
no effect of pelleting on chemical composition of canola screenings (Pylot et al., 2000).