To study the effects of dietary lutein and lutein derivatives on the skin color,tissue pigment content,and antioxidant capacity of yellow-feathered broilers,four hundred and thirty-two 37-day-old Sanhuang broilers were randomly divided into four groups with six replicates in each group and 18 chickens in each replicate.The control group was fed with wheat-soybean meal basal diet,and each experimental group was fed with lutein 40 mg/kg(lutein group),lutein 24 mg/kg and lutein derivative 16 mg/kg(lutein+lutein derivative group),lutein derivative ...
