SUBSTITUTING SORGHUM GRAIN WITH CRUDE GLYCEROL IN DIETS FOR BEEF CATTLE

Authors

  • Kaique Moreira Dias IF Goiano (Campus Iporá).
  • Lorena Martins Oliveira IF Goiano (Campus Iporá).
  • Matheus Silva Rodrigues IF Goiano (Campus Iporá).
  • Rowberta Teixeira dos Santos IF Goiano (Campus Iporá).
  • Tiago do Prado Paim IF Goiano (Campus Iporá).
  • Eduardo Rodrigues de Carvalho IF Goiano (Campus Iporá).

DOI:

https://doi.org/10.5380/avs.v24i1.60403

Keywords:

biodiesel, byproduct, energy, feedlot, Nelore

Abstract

The expansion of the biodiesel industry has created opportunities for crude glycerol use in beef cattle diets. The objective of this study was to determine the effects of substituting sorghum grain with crude glycerol on dry matter intake (DMI), growth performance and feed intake pattern of 28 non-castrated Nelore males with initial body weight (BW) of 441 kg and 21.5 months of age housed in individual or collective pens. Crude glycerol was included at 15% of the ration dry matter as a replacement for sorghum grain. Orts were collected and weighed daily, and DMI was calculated by difference between feed offered and feed refused. Feed intake pattern was determined every two weeks after the beginning of the study in three intervals relative to feed delivery (0-4, 4-10, and 10-24 hours post-feeding). Animals’ BW was obtained on days 1, 14, 28, 42, 56, 70, and 84 days of the trial after a 12-hour solid fasting. Crude glycerol did not alter (P>0.05) DMI, growth performance, hot carcass weight and dressing percentage compared with the control diet. A treatment × days of experiment response (P<0.05) occurred due to a decreased DMI in animals fed crude glycerol during the first 14 days of the trial. Crude glycerol-fed animals decreased (P<0.05) the NDF intake pattern in individual and collective pens. Crude glycerol can be used as a substitute for sorghum grain in beef cattle diets.

Author Biographies

Kaique Moreira Dias, IF Goiano (Campus Iporá).

Mestrando do Programa de Pós-Graduação em Bioenergia e Grãos do IF Goiano.

Lorena Martins Oliveira, IF Goiano (Campus Iporá).

Discente de Agronomia do IF Goiano (Campus Iporá).

Matheus Silva Rodrigues, IF Goiano (Campus Iporá).

Discente de Agronomia do IF Goiano (Campus Iporá).

Rowberta Teixeira dos Santos, IF Goiano (Campus Iporá).

Discente de Agronomia do IF Goiano (Campus Iporá).

Tiago do Prado Paim, IF Goiano (Campus Iporá).

Médico Veterinário do IF Goiano (Campus Iporá), Doutorando em Ciências Animais pela Universidade de Brasília.

Eduardo Rodrigues de Carvalho, IF Goiano (Campus Iporá).

Professor de Ciência Animal do IF Goiano (Campus Iporá).

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Published

2019-03-28

How to Cite

Dias, K. M., Oliveira, L. M., Rodrigues, M. S., Santos, R. T. dos, Paim, T. do P., & Carvalho, E. R. de. (2019). SUBSTITUTING SORGHUM GRAIN WITH CRUDE GLYCEROL IN DIETS FOR BEEF CATTLE. Archives of Veterinary Science, 24(1). https://doi.org/10.5380/avs.v24i1.60403

Issue

Vol. 24 No. 1 (2019)

Section

Animal Nutrition

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