半纯合日粮法评定谷物淀粉在生长猪体内的消化率  

Determination of in vivo Digestibilities of Four Cereal Starches in Growing Pigs by Semi-purified Diet Method

作　　者：黄菊[1,2] 尹富贵[1,2] 柏美娟[1,2] 李铁军[1,2] 黄瑞林[1] 

机构地区：[1]中国科学院亚热带农业生态研究所动物生态营养与健康养殖联合实验室,农业生态工程重点实验室,长沙410125 [2]中国科学院研究生院,北京100039

出　　处：《动物营养学报》2009年第1期8-12,共5页CHINESE JOURNAL OF ANIMAL NUTRITION

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

摘　　要：本文旨在研究小米、糯米、籼米和玉米4种不同谷物类饲料原料中淀粉(总淀粉、直链和支链淀粉、抗性和非抗性淀粉)含量及其在生长猪回肠末端和全消化道(粪)消化率。选择体重为(25±2.72)kg的杜×长×大三元杂交生长阉公猪16头,实施"T"型瘘管手术,随机分为4个处理(小米、玉米、糯米和籼米),每个处理4个重复,每个重复1头猪,分别直接饲喂小米、玉米、糯米和籼米单一日粮,试验期7 d。结果显示,在回肠末端和全消化道内,各日粮总淀粉的消化率分别是:小米组99.31%和99.88%,糯米组100%和100%,籼米组99.37%和100%,均显著高于玉米组98.26%和99.80%(P<0.05)。由结果得知,以上4种谷物淀粉因其回肠末端消化率高而具有较高的葡萄糖供给效率。This study was conducted to determine starch contents and the digestibilities of terminal ileum and total digestive tract for four starch sources from millet, corn, stick rice and long-shaped rice in growing pigs. Sixteen crossed-bred （Landrace × Yorkshire × Duroc） barrows with an average body weight （BW） of （25 ±2.72） kg were randomly allocated to four dietary treatments on the basis of BW and litter origin in a randomized complete block design. The dietary treatments were millet group, corn group, stick rice group and long-shaped rice group, respectively. All pigs were surgically fitted with a simple T-cannula at the terminal ileum. The experiment lasted for 7 days. Results showed that the starch digestibilities of the terminal ileum and total digestive tract were 99.31% and 99.88% in millet group, 100% and 100% in stick rice group, 99.37% and 100% in the long-shaped rice group, which were all higher than 98.26% and 99.80% in the corn group （P〈 0.05）. These results indicated that the four cereal starches could supply pigs with more glucose in the terminal ileum because of their high digestibilities.

关 键 词：半纯合日粮 生长猪 谷物类淀粉 消化率 

分 类 号：S828.5[农业科学—畜牧学] TS201.3[农业科学—畜牧兽医]