将48头育肥猪（杜×长×大）随机分为两组，每组三个重复，在同一玉米－豆粕型基础日粮中分别添加0.1%半乳甘露寡糖(GMOS)和50mg/Kg 金霉素(CTC)，进行了46天的对比试验。饲养试验结束后从两个处理的每个重复分别选择一头阉公猪屠宰，结果表明1）生长性能：基础日粮添加0.1% GMOS与添加50mg/Kg CTC相比较，平均日增重提高10.2%（P<0.05），平均日采食量降低25.2%（P<0.01），料肉比下降13.2%（P<0.01）；2）屠宰性能：基础日粮添加 0.1%的GMOS与添加50mg/Kg的CTC相比较，背膘厚下降了15.6%，皮厚下降了11.5%，瘦肉率提高了2.94%，但经统计分析，差异均不显著(P>0.05)；3）血清生化指标：与添加50mg/Kg的CTC相比，基础日粮添加0.1%的GMOS可使育肥猪血清中的血糖水平升高120%（P<0.05），胆固醇水平下降3.86% (P>0.05)，甘油三脂水平下降42.6% (P>0.05)；4）猪肉品质：与添加50mg/Kg的金霉素相比，基础日粮添加0.1%的GMOS可显著降低肉中吲哚的含量（P<0.05），对其它肉质指标无显著影响。

Forty-eight finishing pigs (Duroc×Landrace×Yorkshine) were randomly allocated to two groups with three replicates of each. All of pigs were fed with the same basal corn-soybean meal diet, one supplemented with 0.1% galacto-mannan-oligosacharrides (GMOS) and the other supplemented with 50mg/Kg chlortetracycline (CTC). At the end of the feeding trial for 46 days, six hogs from each replicate were slaughtered for collecting the slaughter performance and meat quality. The results were as follows: 1) Addition of 0.1% GMOS in basal diet could increase the daily weight gain by 10.2%（P<0.05）, decrease the average daily feed intake by 25.2%（P<0.01）and improve feed conversion rate by 13.2% （P<0.01）as compared with the 50mg/Kg CTC diet；2) Addition of 0.1% GMOS in basal diet could decrease backfat thickness and skin thickness by 15.6% and 11.5%, enhance the fat-free lean by 2.94% as compared with the 50mg/Kg CTC diet, but all were not significant in statistical sense (P>0.05); 3) Compared with the addition of 50mg/Kg CTC, addition of 0.1% GMOS in basal diet could significantly increase blood sugar level by 120%（P<0.05）, decrease the total cholesterol level by 3.86%(P>0.05) and decrease the triglyceride level by 42.6% (P>0.05); 4) Compared with the addition of 50mg/Kg CTC, addition of 0.1% GMOS in basal diet could significantly decrease the indole content in pig muscle（P<0.05）, however, it had not significantly influenced the other meat quality indices.