Fig. 3.

Feeding trial with the transgenic high-Met PE5 maize. A 4-wk feeding trial with 5-d-old chicks was carried out with three types of diets consisting of yellow dent corn supplemented with synthetic methionine (normal group), PE5-B101 without synthetic methionine, and the null transgenic segregant from PE5-B101 without methionine supplementation (reference group). Shown in the graph is the average weight gain, denoted by the lines, during the course of the experiment, and the table shows the weight gain and feed intake per chick at the conclusion of the feeding trial. Weight gain is calculated as the difference between the finishing and starting weights, and the feed conversion ratio is the amount of food consumed per gained weight. Statistical analysis was performed with two-way ANOVA at P < 0.05, and significant differences between samples are indicated by different letters. Data shown are means ± SD of three replicates with five animals per replicate.