The aimof this studywas to evaluate the carcass traits and meat quality of Nellore bulls (279.5±16.3 initial body
weight) raised on pasture supplemented with crude glycerin at 0%, 7%, 14%, 21% or 28% (DM basis). The diets
were similar in energy and protein levels, and the glycerin replaced corn in the supplement. After slaughter,
the carcass characteristicswere measured, and the longissimusmusclewas collected to determine the meat quality.
The inclusion of crude glycerin in the supplement did not change (P N 0.05) any of the carcass characteristics
and meat quality assessed; however, the pH decreased linearly (P= 0.03), and margaric acid (17:0) increased
(P= 0.02) in the longissimusmuscle with the addition of glycerin in the diet. Our conclusion is that the inclusion
of crude glycerin up to the level of 28% of drymatter in the supplement does not alter the carcass characteristics or
the meat quality from animals raised on pasture.