This experiment was conducted to compare the effects of dietary niacin levels on digestive capability and immune function of juvenile Jian carp(cyprinus carpio var.

• 本文通过生长试验和攻毒试验研究了烟酸对幼建鲤消化能力和免疫功能的影响并确定了幼建鲤烟酸需要量。