Arbor Acre newly hatched broilers were assigned to 5 dietary treatments consisting of 0,15, 30, 60 and 120 of supplemented niacin mg/kg basal diet to study the effect of niacin on growth performance and lipid metabolism of broilers.

• AA肉仔鸡240只，设5个处理，各处理在饲喂相同基础日粮条件下，分别添加烟酸0、15、30、60和120mg/kg。