摘要
试验使用90头28日龄断奶仔猪,随机分成5组,分别饲喂含不同梯度菊粉±抗生素的日粮,每组3个重复,每个重复6头,试验期为28d,研究了菊粉对断奶仔猪生产性能及其肠道微生物数量、pH的影响。结果表明,1%菊粉能显著降低断奶仔猪盲肠、结肠和直肠后段内容物pH(P<0105),促进断奶仔猪盲肠内乳酸杆菌生长(P<0105),增加断奶仔猪回肠后段、盲肠和直肠后段双歧杆菌数量(P<0105),但对仔猪生长性能和腹泻率作用不一致。菊粉与抗生素联合使用时,断奶仔猪日增重、日采食量有高于单独使用菊粉的趋势(P>0105)。
In order to conduct the effect of inulin on the performance, pH and the populations of Escherichia coli,Lactobacillus,Bifidobacterium and total bacteria in the digestive tracts and feces in the weaning piglets, 90 28-day-old weaned piglets were randomly assigned to five diets containing antibiotics (Ⅰ),0.5% inulin+antibiotics (Ⅱ),1% inulin+antibiotics (Ⅲ),1.5% inulin+antibiotics (Ⅳ) and 1% inulin (Ⅴ) with three repeats in each treatment and six piglets in each repeat for 28d, respectively. When the feeding ended, the samples of instestinal content and feces were collected from the piglets fed the diets Ⅰ,Ⅲ,Ⅴ to measure pH and Escherichia coli,Lactobacillus,Bifidobacterium and total bacteria by 16S rDNA PCR method. The results showed that pH in caecum, colon, rectum decreased significantly (P<0.05), the populations of Lactobacillus in caecum and Bifidobacterium in ileum, caecum, rectum increased when the piglets were fed the diet containing 1% inulin. No consistent effects of inulin were found on the performance and frequency of diarrhea in the piglets. There was a trend to have better performance in the piglets fed the diet containing 1% inulin +antibiotics than containing 1% inulin by itself.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2005年第4期333-336,共4页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
国家自然科学基金项目(30170687)
