Effect of Feeding DAS-59122-7 Corn Grain and Non-transgenic Corn Grain to Finishing Feedlot Steers

Authors

• Taia J. Huls, University of Nebraska-Lincoln
• Galen E. Erickson, University of Nebraska-LincolnFollow
• Terry J. Klopfenstein, University of Nebraska-LincolnFollow
• Matt K. Luebbe, University of Nebraska - LincolnFollow
• Kyle J. Vander Pol, University of Nebraska-Lincoln
• David W. Rice, University of Nebraska-Lincoln
• Brenda Smith, Pioneer Hi-Bred International Inc., Johnston, Iowa
• Mark Hinds, Pioneer Hi-Bred International Inc., Johnston, Iowa
• Fred Owens, Pioneer Hi-Bred International Inc., Johnston, Iowa
• Matthias Leibergesell, Pioneer Hi-Bred International Inc., Johnston, Iowa

Date of this Version

January 2007

Comments

Published in 2007 Nebraska Beef Cattle Report. Copyright © 2006 The Board of Regents of the University of Nebraska.

Abstract

Sixty crossbred steers were individually fed either corn genetically modified for corn rootworm protection (Das-59122-7), a conventional non-transgenic corn hybrid, or a near isoline control for 109 days to evaluate nutritional equivalency. The corn was coarsely rolled (geometric mean diameter = 4,200 microns) and treatments offered in the finishing diet at 82% of diet (DM basis). Dry matter intakes, ADG, and F:G were similar among all three corn hybrids. Carcass characteristics showed no significant differences among treatments. The genetically modified corn DAS-59122-7 was nutritionally equivalent to a conventional corn hybrid and a near isoline control when fed to finishing steers. Feeding this genetically modified hybrid did not impact steer performance or carcass quality.