期刊
IRANIAN JOURNAL OF MICROBIOLOGY
卷 11, 期 3, 页码 260-266出版社
UNIV MEDICAL SCIENCES-DANISHGAH-I ULUM-I PIZISHKI-I TIHRAN
DOI: 10.18502/ijm.v11i3.1336
关键词
Bacillus subtilis; Bacillus coagulans; Intestinal microflora; Feed conversion ratio
类别
资金
- Shiraz University
Background and Objectives: The intestinal microflora has an important role in the health status. Since probiotics can balance the intestinal microflora, they have a lot of health beneficial effects. So the appropriate selection of probiotics can cause health-promoting effects. In this study, the combined effects of Bacillus subtilis and Bacillus coagulans on the intestinal microflora and growth performance in rats were investigated. Materials and Methods: 80 male rats were divided into the treatment (receiving 5x10(7) spores/ml of B. subtilis and 5x10(7) spores/ml of B. coagulans for three weeks in daily water) and control (tap water without probiotics) groups. The total aerobic and anaerobic microorganisms, lactic acid bacteria (LAB), coliforms and spores were weekly counted in the fecal samples. Additionally, the water and feed consumption, the weight gain and Feed Conversion Ratio (FCR) were calculated for each week. Results: The probiotics significantly increased the total aerobic, LAB and spore counts and caused significant reduction in the anaerobe and coliform counts. Following three weeks of probiotic administration, the number of anaerobic bacteria, and coliforms were reduced by up to 0.7 and 1.18 log and the number of aerobic bacteria, LAB and spores were increased by 1.29, 1.15 and 7.2 log respectively. Also, the results showed the feed consumption reduction, weight gain and FCR enhancement in the probiotic group (p < 0.05). Conclusion: Supplementation the spores of B. subtilis and B. coagulans improved the growth performance and was beneficial to the intestinal microbiota in rats.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据