Published Online: September 14, 2019
Crude glycerol feeding to beef cattle in feedlot
Italu Santos Silva, Fabiano Almeida Vargas, Arthur Felipe Diniz Magalhães, Julia de Sousa Lima, Jhonatan Lafaete Freitas Lourenço,
Letícia Oliveira Xavier, Romário Mendes dos Santos, Lorena Martins Oliveira, Isabela Silva Fonseca, Eduardo Rodrigues de Carvalho
ABSTRACT The biodiesel production across the world has grown in recent years in order to reduce the dependence on the use of fossil fuels, causing crude glycerol, which is a byproduct of the biodiesel industry, also increase its supply and become a viable energy source in the substitution of traditional energy feeds (barley, corn, and sorghum) in rations fed to beef cattle finished in feedlot. The objective of this review work was to address some aspects of the potential use of crude glycerol as a primary ingredient in rations fed to beef cattle in feedlot. The data collection of several articles found in the literature has indicated that the partial substitution of grains and cereals with crude glycerol did not affect animal performance, carcass traits, and meat quality of beef cattle finished in feedlot.
KEYWORDS: biodiesel; byproduct; energy; performance; ration; substitution