The use of N-Alkanes to estimate forage intake and diet composition of crossbred dairy cows treated with Conjugated Linoleic Acid (CLA) and grazing a tropical pasture - Oliveira, E.; Medeiros, S. R.; Aroeira, L. J. M.; Peralba, M. C. R.; Lanna, Dante Pazzanese Duarte (World Conference on Animal Production, 2003)