本试验旨在研究葡萄糖三丁酸酯对肉鸡生长性能、屠宰性能、血清生化指标及肠道黏膜形态的影响。选择健康、体重相近的10日龄雄性爱拔益加（AA）肉鸡160只，随机分为4组，每组4个重复，每个重复10只。空白组饲喂基础饲粮，低、中和高剂量组分别在基础饲粮中添加0.05%、0.10%和0.20%的葡萄糖三丁酸酯。试验期32 d。结果显示：1）15~42日龄时，低、中和高剂量组平均日采食量和平均日增重显著高于空白组（P<0.05），低、中和高剂量组料重比显著低于空白组（P<0.05）。2）28日龄时，高剂量组腿肌率显著高于其他各组（P<0.05）；42日龄时，低、中和高剂量组腿肌显著高于空白组（P<0.05）。3）28日龄时，中和高剂量组血清总蛋白（TP）含量显著高于空白组（P<0.05），低、中和高剂量组血清白蛋白（ALB）含量显著高于空白组（P<0.05）；42日龄时，中和高剂量组血清TP和ALB含量显著高于空白组（P<0.05），低、中和高剂量组血清丙氨酸氨基转移酶活性显著低于空白组（P<0.05），中剂量组血清尿素氮含量显著低于空白组（P<0.05）。4）高剂量组十二指肠绒毛高度显著高于其他各组（P<0.05），中、高剂量组十二指肠隐窝深度显著低于空白组（P<0.05），高剂量组十二指肠绒毛高度/隐窝深度显著高于其他各组（P<0.05）。中和高剂量组空肠绒毛高度显著高于空白组（P<0.05），高剂量组空肠绒毛高度/隐窝深度显著高于空白组（P<0.05）。低、中和高剂量组回肠隐窝深度显著低于空白组（P<0.05），低和高剂量组回肠绒毛高度/隐窝深度显著高于空白组（P<0.05）。中剂量组盲肠隐窝深度显著低于其他各组（P<0.05），中剂量组盲肠绒毛高度/隐窝深度显著高于其他各组（P<0.05）。综上所述，饲粮中添加葡萄糖三丁酸酯可以提高肉鸡的生长性能、屠宰性能，并改善肠道黏膜形态，促进营养物质的吸收。

This experiment was conducted to study the effects of glucose tributyrate on growth performance, slaughter performance, serum biochemical indexes and intestinal mucosal morphology of broilers. One hundred and sixty 10-day-old healthy male Arbor Acres (AA) broilers were randomly divided into 4 groups with 4 replicates per group and 10 broilers per replicate. Broilers in the blank group were fed a basal diet, and the others in low, medium and high dose groups were fed the basal diet supplemented with 0.05%, 0.10% and 0.20% glucose tributyrate, respectively. The experiment lasted for 32 days. The results showed as follows:1) during 15 to 42 days of age, the average daily feed intake and average daily gain of low, medium and high dose groups were significantly higher than those of the blank group (P<0.05), and the ratio of feed to gain of low, medium and high dose groups was significantly lower than that of blank group (P<0.05). 2) At 28 days of age, the leg muscle percentage of high dose group was significantly higher than that of other groups (P<0.05); at 42 days of age, the leg muscle percentage of low, medium and high dose groups was significantly higher than that of the blank group (P<0.05). 3) At 28 days of age, the serum total protein (TP) content of medium and high dose groups was significantly higher than that of the blank group (P<0.05), and the serum albumin (ALB) content of low, medium and high dose groups was significantly higher than that of the blank group (P<0.05); at 42 days of age, the contents of TP and ALB in serum of medium and high dose groups were significantly higher than those of the blank group (P<0.05), the serum alanine aminotransferase activity of low, medium and high dose groups was significantly lower than that of the blank group (P<0.05), and the serum urea nitrogen content of medium dose group was significantly lower than that of the blank group (P<0.05). 4) The duodenal villus height of high dose group was significantly higher than that of other groups (P<0.05), the duodenal crypt depth of medium and high dose groups was significantly lower than that of the blank group (P<0.05), and the duodenal villus height/crypt depth of high dose group was significantly higher than that of other groups (P<0.05). The jejunal villus height of medium and high dose groups was significantly higher than that of the blank group (P<0.05), and the jejunal villus height/crypt depth of high dose group was significantly higher than that of the blank group (P<0.05). The ileum crypt depth of low, medium and high dose groups was significantly lower than that of the blank group (P<0.05), and the ileum villus height/crypt depth of low and high dose groups was significantly higher than that of the blank group (P<0.05). The cecum crypt depth of medium dose group was significantly lower than that of other groups (P<0.05), and the cecum villus height/crypt depth of medium dose group was significantly higher than that of other groups (P<0.05). In summary, the addition of glucose tributyrate to the diet can improve the growth performance and slaughter performance of broilers, improve intestinal mucosal morphology and promote the nutrient absorption.