›› 2011, Vol. 38 ›› Issue (10): 23-26.

• 动物营养与饲料科学 • 上一篇    下一篇

酸化剂对早期断奶仔猪肠黏膜形态、微生物区系及挥发性脂肪酸产生的影响

陈宝江1, 景翠1, 于会民2, 金东航1, 许晴1, 卢娜1   

  1. 1. 河北农业大学动物科技学院,河北保定 071001;2. 中国农业科学院饲料研究所,北京 100081
  • 收稿日期:1900-01-01 修回日期:2011-04-25 出版日期:2011-10-20 发布日期:2011-10-20

Effect of Acidifier on Intestinal Mucosal Morphology, Microflora and Volatile Fatty Acids of Early Weaned Piglets

CHEN Bao-jiang1, JING Cui1, YU Hui-min2, JIN Dong-hang1, XU Qing1, LU Na1   

  1. 1. College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001,China;2. Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081,China
  • Received:1900-01-01 Revised:2011-04-25 Online:2011-10-20 Published:2011-10-20

摘要: 选择平均体重为(7.5±0.15) kg断奶仔猪90头,随机分为3个处理,每个处理6个重复,每个重复5头。试验1、2组日粮分别在对照组日粮基础上添加0.2%、0.4%酸化剂。结果表明,添加酸化剂能够显著降低胃和十二指肠pH(P<0.05),随着食糜向后移动,效果下降;可以提高乳酸菌及总厌氧菌数量(P<0.05),降低大肠杆菌及总需氧菌数量;显著提高结肠食糜挥发性脂肪酸中丁酸、戊酸含量(P<0.05),降低乙酸含量(P<0.05);可以促进空肠肠绒毛生长(P<0.05),增加肠道吸收面积;由此可知,酸化剂通过降低肠道pH,促进厌氧菌生长繁殖,改善消化道环境,提高丁酸合成,促进肠绒毛生长。

关键词: 早期断奶仔猪; 酸化剂; 肠黏膜; 微生物区系; 挥发性脂肪酸

Abstract: To determine the effect of acidifiers on intestinal mucosal morphology, microflora and volatile fatty acids of early weaned piglets, 90 early weaned piglets (7.5 kg±0.15 kg) were divided into three groups with 6 replications 5 each. Diet were mixed with 0, 0.2%, 0.4% acidifiers respectively. The results showed that acidifier reduce the pH value of the stomach and duodenum significantly (P<0.05) while the effect decreased as the chyme moved backward; it increased the amount of Lactobacilli and total anaerobic organism (P<0.05) while decreased E.coli and total aerobic organism; it significantly increased butyric acid and pentanoic acid concentration of colon chyme (P<0.05) while decreased acetic acid content (P<0.05);it promoted the growth of the jejunum intestinal villi (P<0.05) to increased the intestinal absorption area.

Key words: early-weaned piglets; acidifiers; intestinal mucosal morphology; microflora; volatile fatty acids 

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