本研究旨在探讨不同家蝇幼虫制品对黄羽肉仔鸡生长性能、免疫器官发育和抗氧化机能的影响。选取1日龄的黄羽肉仔鸡252只，随机分成7组，每组3个重复，每个重复12只鸡。对照组饲喂基础饲粮，其余6组饲粮中分别添加0.2%、0.5%的家蝇幼虫肽，0.2%、0.5%的家蝇幼虫酶解物，0.2%、0.5%的脱脂家蝇幼虫粉。试验期28 d。结果表明，添加家蝇幼虫肽可显著提高肉仔鸡平均日增重（P<0.05）和降低料重比（P<0.05），其效果要优于家蝇幼虫酶解物和脱脂家蝇幼虫粉；添加家蝇幼虫制品有提高肉仔鸡的免疫器官指数的趋势（P>0.05），可不同程度地降低血清丙二醛浓度，提高血清中过氧化氢酶、超氧化物歧化酶和谷胱甘肽过氧化物酶活性及提高总抗氧化能力，以添加0.5%家蝇幼虫肽的抗氧化效果最为显著（P<0.05）。由此得出，家蝇幼虫肽具有较强的生物活性，可以提高肉仔鸡的生长性能和抗氧化能力。

This trial was to study the effects of housefly larvae products on growth performance, antioxidant ability and immune indices in yellow-feathered broilers. Two hundred and fifty-two one-day-old yellow-feathered broilers were randomly allotted to 7 groups, and each group had 3 replicates with 12 broilers per replicate. The control group was fed the basal diet, and other six groups were fed the basal diet with 0.2% and 0.5% housefly larvae enzymatic hydrolysis peptides, 0.2% and 0.5% housefly larvae hydrolyzates, 0.2% and 0.5% degreasing housefly larvae powder, respectively. The trial lasted for 28 days. The results showed that housefly larvae peptide significantly increased the average daily gain and decreased the feed/gain of yellow-feathered broilers (P<0.05), and had a better result than housefly larvae hydrolyzates and degreasing housefly larvae powder. Compared with the control group, the immune organ indices of broilers were tended to be increased (P>0.05), and the activities of serum catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and total anti-oxidation capacity (T-AOC) were increased and the concentration of malondialdehyde (MDA) was decreased in different degrees as broilers were fed basal diets with housefly larvae products, and 0.5% housefly larvae enzymatic hydrolysis peptide was significantly increased in antioxidant ability (P<0.05). In conclusion, housefly larvae peptide has a high biological activity to improve the growth performance and antioxidant ability in broilers.［Chinese Journal of Animal Nutrition, 2010，22（3）:762-768］