饲粮添加苹果果胶寡糖对断奶大鼠生长性能、抗氧化能力和肠道健康的影响

发布时间：2018-01-17 16:16

本文关键词：饲粮添加苹果果胶寡糖对断奶大鼠生长性能、抗氧化能力和肠道健康的影响　出处：《动物营养学报》2016年09期 　论文类型：期刊论文

【摘要】：本研究旨在探讨饲粮添加苹果果胶寡糖(apple pectic oligosaccharide,APOS)对断奶大鼠生长性能、抗氧化能力和肠道健康的影响。试验选取24只健康的断奶Wistar大鼠,按照体重相近的原则分为2个处理,分别饲喂基础饲粮和添加800 mg/kg APOS的饲粮,试验期为14 d。结果表明:饲粮添加APOS显著提高了断奶大鼠平均日增重和平均日采食量(P0.05),显著降低了料重比(P0.05);饲粮添加APOS可显著提高断奶大鼠血清总抗氧化能力(P0.05),降低血清中丙二醛的含量(P0.05);饲粮添加APOS还可显著提高空肠黏膜绒毛高度/隐窝深度值(P0.05);此外,饲粮添加APOS也提高了盲肠食糜中乳酸菌和双歧杆菌的数量(P0.05),降低了盲肠食糜中大肠杆菌的数量(P0.05)。综上所述,在断奶大鼠的饲粮中添加APOS可以提高其生长性能,而这可能源于其改善了大鼠抗氧化能力、空肠黏膜形态和肠道菌群结构。
[Abstract]:The purpose of this study was to investigate the growth performance of weaned rats fed with apple pectic oligosaccharides (APOS). Effects of antioxidant capacity and intestinal health. Twenty-four healthy weaned Wistar rats were divided into two groups according to the principle of similar body weight. The basal diet and the diet supplemented with 800 mg/kg APOS were fed respectively. The experiment period was 14 days. The results showed that the average daily gain (ADG) and average daily feed intake (ADFI) of weaning rats were significantly increased, and the feed weight ratio (FW) was decreased significantly. Dietary supplementation with APOS could significantly increase the total antioxidant capacity and decrease the content of malondialdehyde (MDA) in serum of weaned rats. Dietary addition of APOS also significantly increased the villus height / crypt depth of jejunal mucosa (P 0.05). In addition, the addition of APOS in diet also increased the number of lactic acid bacteria and bifidobacterium in the cecum chyme, and decreased the number of Escherichia coli in the caecum chyme. The addition of APOS to the diet of weaned rats could improve their growth performance, which may be due to the improvement of antioxidant ability, jejunal mucosal morphology and intestinal flora structure of the weaned rats.
【作者单位】：四川农业大学动物营养研究所动物抗病营养教育部重点实验室;湖南省畜牧兽医研究所;中国农业科学院饲料研究所;
【基金】：十二五国家科技支撑计划(2011BAD26B02) 四川省科技支撑项目(2013NZ0056) 现代农业产业技术体系(CARS-36)
【分类号】：S816
【正文快照】： 寡糖是由2~10个单糖分子以糖苷键相连形成的直链或支链糖类化合物,在生物体生命活动中具有重要的功能。根据寡糖的生物学功能,可将其分为普通寡糖和功能性寡糖。普通寡糖中有人们熟悉的蔗糖、麦芽糖、乳糖等,它们可以被机体消化吸收,又称营养性寡糖。功能性寡糖其本身不能被机

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