the last 14 days (P < 0.05) after weaning.
The ADG during the entire experimental period was also improved quadratically (P < 0.01) with increasing chitosan inclusion, and the pigs fed the diet containing 500 mg/kg chitosan had the highest ADG among treatments. However, no significant linear or quadratic effect was observed for the ADFI or G : F ratio in response to increased chitosan supplementation during the entire experimental period.