Results
In phase 1, no differences were observed in body weight, average daily gain, average daily feed intake, or gain:feed ratio among pigs fed any of the different diets (Table 2). In phase 2, no differences were observed in average daily feed intake among treatments. However, final body weight, average daily gain, and gain:feed were less in pigs fed the negative control diet than in pigs fed the other diets, but no differences among pigs fed the other diets were observed. In phase 3, no differences in any of the performance measures were observed among pigs fed any of the diets. Overall, the gain:feed ratio in pigs fed the positive control diet was greater than in pigs fed the other diets, which did not differ. No differences in the other performance measures were observed.