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Effect Of Feeding Das-59122-7 Corn Grain And Nontransgenic Corn Grain To Individually Fed Finishing Steers, T. J. Huls, G. E. Erickson, T. J. Klopfenstein, Matt K. Luebbe, K. J. Vander Pol, D. W. Rice, B. Smith, M. Hinds, F. Owens, M. Liebergesell
Effect Of Feeding Das-59122-7 Corn Grain And Nontransgenic Corn Grain To Individually Fed Finishing Steers, T. J. Huls, G. E. Erickson, T. J. Klopfenstein, Matt K. Luebbe, K. J. Vander Pol, D. W. Rice, B. Smith, M. Hinds, F. Owens, M. Liebergesell
Department of Animal Science: Faculty Publications
An experiment was conducted to evaluate feeding transgenic corn containing the cry34Ab1 and cry35Ab1 genes from a Bacillus thuringiensis strain and the phosphinothricin acetyltransferase (pat) gene from Streptomyces viridochromogenes to finishing cattle compared with nontransgenic corn. Expression of the cry34Ab1 and cry35Ab1 genes confers resistance to corn rootworms, and the pat gene confers tolerance to herbicides containing glufosinate-ammonium. Sixty crossbred steers (396 kg) were individually fed either transgenic corn (DAS-59122-7; 59122), a near-isogenic, nontransgenic control (Control), and a conventional, nontransgenic corn for 109 d to evaluate nutritional equivalency (20 steers/treatment). The corn was coarsely rolled (geometric mean diameter = 4,200 …