Ruminal Degradable Sulfur and Hydrogen Sulfide in Cattle Finishing Diets

Authors

Jhones O. Sarturi, University of Nebraska-Lincoln
Terry J. Klopfenstein, University of Nebraska-LincolnFollow
Kelsey M. Rolfe Rolfe, University of Nebraska-LincolnFollow
Crystal C. D. Buckner, University of Nebraska-LincolnFollow
Matt K. Luebbe, University of Nebraska-LincolnFollow

Date of this Version

2012

Comments

Published in 2012 Beef Cattle Report (2012) p. 79-81. Copyright © 2012 The Board of Regents of the University of Nebraska.

Abstract

The relationship between ruminal degradable sulfur intake (RDSI) and ruminal hydrogen sulfide concentration ([H₂S]) as well as ruminal parameters were evaluated. Steers were fed diets containing organic, inorganic, and wet distiller grains with solubles (WDGS) sources of sulfur, as well as a control diet. A laboratory procedure was developedto measure RDS of ingredients. RDSI explained 65% of [H₂S] variation, whereas total sulfur intake and ruminal pH, individually, explained 29 and 12%, respectively. Availability of sulfur for ruminal reduction is more important than total sulfur in the diet.