Comparison of Broiler Performance and Carcass Parameters When Fed Diets Containing Combined Trait Insect-Protected and Glyphosate-Tolerant Corn (MON 89034 × NK603), Control, or Conventional Reference Corn

ABSTRACT A 42-d floor pen study was conducted to compare broiler (Ross × Ross 308) performance and car-cass measurements when fed diets containing lepidop-teran-protected corn combined with glyphosate-tolerant corn (MON 89034 × NK603) with those of broilers fed diets containing corn grain from the conventional control (similar genetic background to the test corn) and 6 con-ventional corn hybrids. It has been found that MON 89034 produces the Cry1A.105 and Cry2Ab2 insecticidal pro-teins that protect corn plants from feeding damage caused by European corn borer (Ostrinia nubilalis) and other lepi-dopteran insect pests. In addition, NK603 produces the 5-enolpyruvylshikimate-3-phosphate synthase protein from Agrobacterium sp. strain CP4 (CP4 EPSPS), which confers tolerance to glyphosate, the active ingredient in Roundup agricultural herbicides. The traditional breed-ing of plants that express the individual traits produce