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肉仔鸡饲喂枯草芽孢杆菌(Bacillus subtilis)效果的研究 总被引:5,自引:1,他引:4
研究了两种不同枯草芽孢杆菌对660只艾维茵肉仔鸡的生产性能和对仔鸡肠道微生物菌群的影响。试验将仔鸡随机分为4组:不饲喂药物添加剂的对照组、添加乳酸—粪链球菌的正对照组及添加不同枯草芽孢杆菌的两个试验组Ⅰ、Ⅱ。 结果表明,添加枯草芽孢杆菌可使三周龄仔鸡体重略高于对照组,但差异不显著。添加枯草芽孢杆菌A16的试验组Ⅱ的饲料转化效率比对照组显著提高(P<0.05);试验组Ⅰ与对照组相比,可显著地增加肠道中有益菌(乳酸杆菌)的数量(P<0.05),减少有害菌(沙门氏菌)的数量(P<0.01),但对大肠杆菌数量的影响不显著。 相似文献
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1日龄雏鸡120只,随机分为6组,用不同的方法处理后,对各组雏鸡7个部位(嗉囔、腺胃、十二指肠、空肠、回肠、盲肠、直肠)消化道黏膜黏附的O78进行分离计数,研究禽致病性大肠杆菌在雏鸡消化道的分布,比较益生菌对禽致病性大肠杆菌O78在不同雏鸡动物模型中的抑制作用。结果表明:禽致病性大肠杆菌O78主要定植在雏鸡的嗉囔、盲肠和直肠;抗生素处理组和非处理组在灌服益生菌后24、48、72、96h与对照纽相比,各消化道部位定植的O78均有不同程度的降低,说明益生菌对禽致病性大肠杆菌O78。具有较强的抑制能力;未处理组的雏鸡消化道内黏附的O78菌数低于抗生素处理组,说明益生菌在抑制病原菌同时可促进消化道有益菌群的生长,从而防止致病菌的感染。 相似文献
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Randomized,Controlled, Crossover trial of Prevention of Clindamycin‐Induced Gastrointestinal Signs Using a Synbiotic in Healthy Research Cats
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Marcela Capcarova Peter Hascik Miroslava Kacaniova Gabriel Pal 《Research in veterinary science》2011,91(1):132-137
The aim of this work was to investigate the effect of probiotic preparation with multi-strains composition (Lactobacillus delbrueckii ssp. bulgaricus LAT 187, Lactobacillus acidophilus LAT 180, Lactobacillus helveticus LAT 179, Lactobacillus delbrueckii ssp. lactis LAT 182, Streptococcus thermophilus LAT 205 and Enterococcus faecium E 253) on internal milieu, antioxidant status and body weight of broiler chickens. Chickens were divided into three groups (C, control; E1 and E2, experimental groups). Experimental chickens received the probiotic preparation in drinking water. Probiotic preparation caused a significant increase of serum calcium and potassium content. In the group with higher dose of probiotic strains serum triglycerides level decreased. Total antioxidant status in groups with addition of probiotic strains showed higher values in comparison to control group. Serum albumin level was found to increase after consumption of probiotic preparation in group with higher dose of probiotic strains. Probiotic strains improved body weight in last observed weeks of feeding. 相似文献
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益生菌的研究进展及展望 总被引:1,自引:1,他引:1
综述了近年来对益生菌功能的研究情况,并对益生菌未来的研究方向提出了展望。 相似文献
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寡聚糖、抗生素、益生素对仔猪生长性能和肠道菌群影响的研究 总被引:14,自引:3,他引:11
选择 12窝仔猪 ,随机分为 6组 ,每组 2窝 ,从 7日龄开始进行为期 8周的饲养试验 ,在4周末断奶 ,研究了基础日粮中添加寡聚糖、益生素、金霉素以及寡聚糖取代部分抗生素对仔猪生长性能和肠道菌群的影响。结果表明 ,与对照组相比 ,寡聚糖或其与金霉素配伍 ( 2 5mg及 12 .50mg· kg-1饲粮 )使用 ,使仔猪在 0~ 4周日增重分别提高 16.81% ( P>0 .0 5)、 15.91 ( P>0 .0 5)、 15.32 ( P>0 .0 5) ;腹泻率分别降低 7.83 ( P<0 .0 1)、 8.68 ( P<0 .0 1)、 8.35( P<0 .0 1)。在 5~ 8周 ,使仔猪日增重分别提高 9.55 ( P>0 .0 5)、 4 8.84 ( P<0 .0 5)、 38.74( P<0 .0 5) ;料肉比分别降低 0 .2 1( P<0 .0 5)、 0 .4 1( P<0 .0 1)、 0 .4 6( P<0 .0 1) ;腹泻率分别降低 12 .78 ( P<0 .0 1)、 2 2 .2 3 ( P<0 .0 1)、 2 0 .88 ( P<0 .0 1)。 0 .15益生素使 0~ 4周的仔猪腹泻率降低 4 .82 ( P<0 .0 5) ,在 5~ 8周使料肉比降低 0 .17( P<0 .0 5) ,腹泻率降低 4 .90( P<0 .0 5)。金霉素 ( 50 mg· kg-1饲粮 )组在 5~ 8周腹泻率降低 5.16% ( P<0 .0 5)。抗生素、益生素在 0~ 4及 5~ 8周对日增重的影响不大 ( P>0 .0 5)。 2 1日龄和 4 9日龄取新鲜粪样测定结果表明 :寡聚糖或寡聚糖与 相似文献
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Chronic infection with Helicobacter pylori (H. pylori) is a known risk factor for gastric cancer. Eradication rate of H. pylori infection by the classic triple treatment of PPIs and antibiotics is low. Therefore, probiotics are a useful tool for improving the rate of eradication and reduction of side effects. Several studies in animal models showed that Lactobacillus spp. alone and in combination with other probiotic strains have inhibitory effects on growth and suppression of inflammatory responses in H. pylori infections. However, some studies showed significant effects of Pediococcus strains on suppression, survival, and eradication of H. pylori infections. Therefore, it is suggested that in the treatment of H. pylori infections along with the usual probiotic strains, different strains of Pediococcus could be used. Recent studies showed that Lactobacillus reuteri and Lactobacillus gasseri alone with PPIs in human have a high eradication effect on H. pylori infections and it is suggested as the probiotic treatment of patient's in future therapeutic protocols. In relation to the probiotic treatment process, it should not be recommended that probiotics could be used as a single treatment for H. pylori eradication. However, use of probiotics as a supplement will increase eradication and reduce side effects associated with treatment. It is widely believed that probiotics could improve the eradication of H. pylori and reduce side effects during standard treatment, but some probiotic bacterial species could be useful with drug therapy. Generally, probiotic supplements could increase the eradication rate of H. pylori infections and reduced the side effects of antibiotics. 相似文献