It is possible to observe that group 3 (Table 3),
supplemented with oregano oleoresin, presented
FEC value lower than the control group. However,
such value was similar to those presented by the
other groups. These data indicate that the compounds
present in oleoresins did not interfere in the
employment of nutrients present in the feed. Data
also demonstrated that the supplementation enabled
animals to develop and grow normally, excluding the
possibility of an anti-nutritional effect of oleoresins.