Growth Performance of Growing Pigs Fed Crude Glycerol-Supplemented Diets

  • Peter J. Lammers (Iowa State University)
  • Mark S. Honeyman (Iowa State University)
  • Kristjan Bregendahl (Iowa State University)
  • Brian J. Kerr (United States Department of Agriculture)
  • Thomas E. Weber (United States Department of Agriculture)


Growth performance of growing pigs fed crude glycerol was determined in a 138-d feeding trial. Crude glycerol utilized in the trial contained 84.51% glycerol, 11.95% water, 2.91% sodium chloride, and 0.32% methanol. Eight days post-weaning, 96 pigs (48 barrows, 48 gilts) with an average BW of 7.9 ± 0.4 kg were allotted to 24 pens (4 pigs/pen), with gender and pen weight balanced at the start of the experiment. Dietary regimes were randomly assigned to each pen. Dietary treatments were 0, 5, and 10% crude glycerol inclusion in corn-soybean meal based diets. Diets were offered ad libitum in meal form and formulated to be equal in metabolizable energy (ME), sodium, chloride, and Lys, with other amino acids (AA) balanced on an ideal AA basis. Every two weeks, pigs and feeders were weighed and G:F calculated. Pig growth, feed intake, and G:F were not affected by dietary treatment. Crude glycerol is a viable source of dietary energy that is well utilized by pigs. Inclusion of crude glycerol in pig diets may be determined by relative availability and price of other dietary energy sources.

Keywords: ASL R2357

How to Cite:

Lammers, P. J., Honeyman, M. S., Bregendahl, K., Kerr, B. J. & Weber, T. E., (2008) “Growth Performance of Growing Pigs Fed Crude Glycerol-Supplemented Diets”, Iowa State University Animal Industry Report 5(1). doi: https://doi.org/10.31274/ans_air-180814-594

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Published on
01 Jan 2008
Peer Reviewed