Performance of laying hens fed diets containing DAS-59122-7 maize grain compared with diets containing nontransgenic maize grain

C. M. Jacobs, P. L. Utterback, C. M. Parsons, D. Rice, B. Smith, M. Hinds, M. Liebergesell, T. Sauber

Research output: Contribution to journalArticlepeer-review

Abstract

An experiment using 216 Hy-Line W-36 pullets was conducted to evaluate transgenic maize grain containing the cry34Ab1 and cry35Ab1 genes from a Bacillus thuringiensis (Bt) strain and the phosphinothricin acetyltransferase (pat) gene from Streptomyces viridochromogenes. Expression of the cry34Ab1 and cry35Ab1 genes confers resistance to corn rootworms, and the pat gene confers tolerance to herbicides containing glufosinate-ammonium. Pullets (20 wk of age) were placed in cage lots (3 hens/cage, 2 cages/lot) and were randomly assigned to 1 of 3 corn-soybean meal dietary treatments (12 lots/treatment) formulated with the following maize grains: near-isogenic control (control), conventional maize, and transgenic test corn line 59122 containing event DAS-59122-7. Differences between 59122 and control group means were evaluated with statistical significance at P < 0.05. Body weight and gain, egg production, egg mass, and feed efficiency for hens fed the 59122 corn were not significantly different from the respective values for hens fed diets formulated with control maize grain. Egg component weights, Haugh unit measures, and egg weight class distribution were similar regardless of the corn source. This research indicates that performance of hens fed diets containing 59122 maize grain, as measured by egg production and egg quality, was similar to that of hens fed diets formulated with near-isogenic corn grain.

Original languageEnglish (US)
Pages (from-to)475-479
Number of pages5
JournalPoultry science
Volume87
Issue number3
DOIs
StatePublished - Mar 1 2008

Keywords

  • Corn rootworm
  • Cry34Ab1
  • Cry35Ab1
  • Egg production
  • Egg quality

ASJC Scopus subject areas

  • Animal Science and Zoology

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