不同类型益生素对断奶仔猪肠道微生物区系、pH和挥发性盐基氮的影响  

Effect of Different Types of Probiotics on Intestinal Microflora , pH and Volatile Base Nitrogen of Weaned Piglets

作　　者：窦茂鑫[1,2] 吴涛[1,2] 

机构地区：[1]武汉工业学院动物科学与营养工程学院,湖北武汉430023 [2]动物营养与饲料科学湖北省重点实验室,湖北武汉430023

出　　处：《中国畜牧兽医》2013年第2期84-87,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家农业科技成果转化资金项目(2010GB2D100299)

摘　　要：本试验研究芽孢杆菌、乳酸杆菌对断奶仔猪肠道微生物区系、肠道pH和挥发性盐基氮(VBN)的影响。试验选取28日龄左右的"杜×长×大三元"杂交仔猪24头,随机分为3组,每组4个重复,每个重复2头,进行为期30d的饲养试验,试验结束后收集盲肠和结肠内容物用于微生物、pH和VBN的测定。结果表明,芽孢杆菌和乳酸杆菌均使得盲肠与结肠中乳酸杆菌相对数量都升高,降低盲肠内容物pH,结肠内容物pH升高,并降低了肠道内VBN含量。因此,芽孢杆菌和乳酸杆菌均能改善肠道微生物区系,降低肠道蛋白质的腐败变质。The experiment was conducted to stduy the effect of Bacillus, Lactobacillus on intestinal microflora, pH and volatile base nitrogen （VBN） of weaned piglets. 24 crossbred piglets （Yorkshire×Landrace×Duroc） were randomly allocated to three dietary treatments with 4 pens of 2 each and to feed for a period of 30 d. After the test, four piglets in each treatment were slaughtered, the digesta of the cecum and colon was collected to determine intestinal microflora, pH and volatile base ni- trogen. The results showed that the Bacillus and Lactobacillus were making the relative number of Lactobacilli in the cecum and colon increased, the pH value of cecal digesta reduced, the pH value of colonic contents increased, and VBN of intestine content lower. The study showed that Bacillus and Lactobacillus improved intestinal microflora and reduced the intestinal pro-tein rancidness.

关 键 词：芽孢杆菌 乳酸杆菌 断奶仔猪 挥发性盐基氮 

分 类 号：S816.7[农业科学—饲料科学]