本试验旨在研究探讨在玉米-豆粕型饲粮中添加牛磺酸对爱拔益加（AA）肉鸡育雏期生长性能和抗氧化酶活性的影响。试验采用单因素完全随机分组设计，选择1日龄AA肉雏鸡180只，随机分为5个处理，每个处理6个重复，每个重复6只鸡，Ⅰ组为对照组，饲喂玉米-豆粕型基础饲粮，Ⅱ、Ⅲ、Ⅳ、Ⅴ组为试验组，饲喂在基础饲粮中分别添加0.05%、0.10%、0.15%、0.20%的牛磺酸的试验饲粮。在试验的第5天和第21天分别测定血清和组织肝脏抗氧化指标。试验期21 d。试验结果表明，1）在AA肉雏鸡饲粮中添加0.10%和0.15%牛磺酸时，可显著提高育雏期平均日增重、降低料重比（P<0.05）；2）试验第5天，在饲粮中添加0.10%和0.15%的牛磺酸，血清和肝脏谷胱甘肽过氧化物酶（GSH-Px）、超氧化物歧化酶（SOD）、总抗氧化能力（T-AOC）活性最高，丙二醛（MDA）浓度最低；试验第21天，添加0.10%的牛磺酸，血清和肝脏GSH-Px、SOD、T-AOC活性最高，MDA浓度最低；3）当饲粮中添加高水平的牛磺酸（0.20%）时AA肉雏鸡的生长性能有所下降，其抗氧化功能呈现不同程度的降低。综合分析，在AA肉鸡育雏期饲粮中添加适宜水平牛磺酸可提高其生长性能，增强机体的抗氧化功能，过高会影响其生长和抗氧化功能；在1~5日龄饲粮中添加牛磺酸0.10%~0.15%、6~21日龄添加0.10%为宜。

The experiment was conducted to study the effects of different taurine levels on growth performance and anti-oxidative ability of AA broilers. One hundred and eighty healthy AA broilers were randomly divided into 6 treatments with 6 replicates, and each replicate contained 6 broilers. All the broilers were fed corn-soybean meal basal diets supplemented with 0, 0.05%, 0.10%, 0.15% and 0.20% taurine, respectively. At day 5 and day 21, the activities of GSH-Px, SOD, T-AOC and content of MDA were measured. The experiment lasted for 21 days. The results showed as follows, 1) in the AA broiler diets, supplementation of 0.10% and 0.15% taurine significantly improved average daily gain, and reduced the ratio of feed to gain (P<0.05); 2) at day 5, the groups adding with 0.10% and 0.15% taurine had the highest activitise of GSH-Px, SOD and T-AOC, and the lowest content of MDA in serum and liver; at day 21, the activitise of GSH-Px, SOD and T-AOC in serum and liver were the highest and the content of MDA was the lowest in the group added with 0.10% taurine; 3) the growth performance and anti-oxidant ability of broilers were decreased in the group added higher doze (0.20%) taurine. In conclusion, appropriate levels of taurine could improve the growth performance and anti-oxidative ability, but high taurine levels had negative effects, and the optimal level of broilers at 1～5 days of age was 0.10%~0.15%, and at 6～21 days of age was 0.10%, respectively.［Chinese Journal of Animal Nutrition, 2010，22（3）:696-701］