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The effect of glutamine supplement on small intestinal morphology and xylose absorptive ability of weaned piglets

机译：谷氨酰胺对断奶仔猪小肠形态和木糖吸收能力的影响

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The purpose of this study is to demonstrate the effects of glutamine (Gln) supplement on small intestinal morphology, xylose absorptive and growth performance of weaned piglets. Forty eight piglets weaned at 28 ± 2 days of age were randomly allotted to three treatment groups. A basal corn-soybean diet was formulated to contain 20.3% protein and 3450 kcal DE/kg diet. Glutamine was supplemented to the basal diet at 0% (control), 1% (Gln 1%) and 2% (Gln 2%). Pigs were fed experimental diets for three weeks. The results showed that the villous height of the Gln groups tended higher than the control group in duodenum and jejunum (P < 0.1). Glutamine supplementation increased plasma net xylose absorptive concentration from 0.78 to 1.20 and 0.95 to 1.23 in Gln 1% and Gln 2% group, respectively, which were better than the control group (0.86 to 0.97) in day 7 to 14 after weaning. Growth performance was not significantly affected by?Glnsupplement; however, average daily gain was approximately improved from 21 to 28% by Gln supplement compared to the control group during 21 days of experimental period. In summary, the results suggested that dietary supplementation of Gln could be beneficial in small intestinal villous morphology and xylose absorptive capacity, and could have a slight contribution to the average daily gain of weaned piglets.
机译：这项研究的目的是证明谷氨酰胺（Gln）补充剂对断奶仔猪的小肠形态，木糖吸收和生长性能的影响。将28只±2天断奶的四十八只仔猪随机分配给三个治疗组。基础玉米-大豆日粮配制为包含20.3％的蛋白质和3450 kcal DE / kg日粮。在基础饮食中补充谷氨酰胺的比例为0％（对照），1％（Gln 1％）和2％（Gln 2％）。给猪喂食实验饲料三周。结果表明，十二指肠和空肠中Gln组的绒毛高度倾向于高于对照组（P <0.1）。补充谷氨酰胺可使1％Gln组和2％Gln组的血浆净木糖吸收浓度分别从0.78增加至1.20和0.95至1.23，在断奶后第7至14天优于对照组（0.86至0.97）。补充葡萄糖对生长性能没有显着影响。然而，在实验期间的21天，与对照组相比，Gln补充剂的平均日增重从21％提高到28％。总之，研究结果表明，日粮中添加Gln可能有益于小肠绒毛形态和木糖吸收能力，并且对断奶仔猪的日平均增重可能有轻微贡献。

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