杂粮淀粉在仔猪体内的消化率研究  

Digestibility of Coarse Cereal Starch in Piglets

作　　者：张珍珍[1,2] 尹富贵[2,3] 黄菊[2] 印遇龙[1,2] 阮征[1] 代志凯[1] 廖春龙[1] 

机构地区：[1]南昌大学生命科学与食品工程学院,食品科学与技术国家重点实验室,江西南昌330047 [2]中国科学院亚热带农业生态研究所动物营养代谢过程与生理调控实验室,湖南长沙410125 [3]加拿大农业部圭尔夫食品研究中心,安大略圭尔夫N1G 5C9

出　　处：《食品科学》2010年第3期217-219,共3页Food Science

基　　金：国家自然科学基金项目(30671517);中国科学院创新重要方向项目(KSCX2-SW-323)

摘　　要：以60日龄生长猪为动物模型,考察4种不同杂粮原料中淀粉(总淀粉、直链和支链淀粉、抗性和非抗性淀粉)的含量及其在生长猪回肠末端和粪中的表观消化率。结果表明:以干物质为基础,各种杂粮淀粉的含量因杂粮种属不同而差异较大。芋头淀粉和木薯淀粉的回肠末端消化率均显著高于(P<0.05)土豆和山药淀粉;所有淀粉在粪便中的表观消化率均达99%以上。芋头淀粉和木薯淀粉因回肠末端消化率高而具有较高的葡萄糖供给效率,土豆淀粉和山药淀粉因后肠微生物的发酵而利用率升高。Piglets of 60 days old were used as the animal model to evaluate in vivo apparent digestibility of starch of different coarse cereals such as taro,potato,Chinese yam and cassava.Results indicated that starch content varied in different species of coarse cereals.The apparent digestibility of taro and cassava starches in ileal digesta was significantly higher（P〈0.05） than that of potato and Chinese yam starches.The apparent digestibility of starches of all the coarse cereal species in faeces reached up to 99%.These investigations suggest that taro and cassava starches could supply piglets more glucose when digested in small intestine due to higher digestibility.Higher digestibility of potato and Chinese yam starches in feces could be resulted from the co-fermentation of microorganisms in hindgut of piglets.

关 键 词：杂粮淀粉 生长猪 消化率 

分 类 号：TS23[轻工技术与工程—粮食、油脂及植物蛋白工程]