共查询到19条相似文献，搜索用时 328 毫秒
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益生菌发酵乳是益生菌在食品领域的重要应用形式。本文概述益生菌发酵乳的研究进展,对近5年来益生菌发酵乳的功能活性和机制研究进行总结。大量研究表明,益生菌发酵乳的功能活性包括:维护胃肠道、口腔、皮肤健康;调节代谢异常,改善高血压、高血脂、高血糖、肥胖和骨质疏松等症状;调节免疫、改善食物过敏、缓解呼吸道过敏、提升机体抗氧化能力;调节精神情绪等。旨在为益生菌发酵的产品开发和研究提供理论支持。 相似文献
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益生菌制剂具有调节畜禽体内菌群失衡,增强免疫力,促进机体对营养物质的消化吸收,改善畜禽生产性能的作用。其还能起到"已病辅治、未病防病、无病保健"的重要作用。益生菌制剂效果的发挥取决于益生菌菌种的特性、制造工艺、添加量和动物种类及其生理状态等多种因素的影响。同时,使用方法的不同对益生菌制剂效果的体现也不同。 相似文献
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益生菌是指有助于宿主健康生长的微生物及其细胞,将其作为饲料添加剂,可为生猪生长发育提供营养与保健支持。基于此,文章从益生菌的功能入手,结合生猪养殖产业实践,总结益生菌在生猪养殖产业中的应用,为益生菌在生猪养殖产业的推广应用提供帮助。 相似文献
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益生菌在马属动物中的应用及研究进展 《畜牧与饲料科学》2022,43(4):39-47
益生菌作为一种活的微生物饲料补充剂,不仅能提高动物生产性能、增强免疫力,还有维持胃肠道菌群平衡、净化胃肠道环境的功能,在预防和治疗动物腹泻、调节宿主免疫功能等方面发挥着重要作用。益生菌具有安全性高、无残留、无耐药性等特点,可作为替抗产品。益生菌广泛应用于马属动物并取得良好的效果。综述了益生菌及相关活性物质的作用机理及马用益生菌产品存在的问题和应用前景,旨在为马用益生菌产品的开发利用提供参考。 相似文献
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产蛋白酶枯草芽胞杆菌益生菌种的筛选与应用 总被引：10，自引：0，他引：10
本研究从健康鸡体内分离、选育出一株可产中性蛋白酶的枯草芽胞杆菌 ;将其作为益生素生产菌种 ,制备了微生态制剂———益生素 ;并对该菌的生物学性状、产酶性状和饲喂效果进行了系统研究。研究表明该枯草芽胞杆菌培养48小时 ,培养液中含蛋白酶活力可达 1 0 32 .56U ml;Bulb C小鼠腹腔注射和海兰白蛋公雏鸡口服试验均表明 ,该菌对动物安全 ;连续传代及体外保存一年生物性状稳定。饲喂实验表明 ,该益生素能明显促进肉用仔鸡的生长发育 ,到实验期末 ,提高肉用仔鸡体重 7.32 % ,肉用仔鸡的累积饲料转化率提高 8.96 %。对肉用仔鸡 ,合适的添加剂量为 0 .1 %(W W) (含H1菌 7.1 0× 1 0 5CFU g饲料 ) 相似文献
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ZHANG Man JIN Xin TIAN Qiao-zhen LIU Jiao WANG Yun-he ZHANG Zhao-yi YANG Yin-feng 《中国畜牧兽医》2017,44(12):3656-3662
Probiotics are a kind of living microorganism which can be administered in feed and confer numerous health benefits to animals. Probiotics play a key role in maintaining the microbial balance of gastrointestinal, immunomodulation and pathogen defense, specific probiotics show certain degree of potential to reinforce the integrity of intestinal epithelium and regulate some immune components. The mechanism of probiotic action is an area of interest. Among all possible routes of modulation by probiotics of intestinal mediated defense responses, modulations of intestinal barrier function, innate and adaptive mucosal immune responses as well as signaling pathways are considered to play an important role in the intestinal defense responses against pathogenic bacteria. This review summarizes how probiotic bacteria interact with goblet cell-derived mucins, trefoil factors (TFFs),defensins, Toll-like receptors (TLRs), secretory immunoglobulin A (sIgA), heat shock proteins (HSPs) and P-glycoproteins (P-gp) in the gut to regulate the intestinal innate defense responses,which is regarded as the scientific basis for the future detailed study of benefits of probiotics towards the health of intestine and also dietary intervention against intestinal exposure to pathogens. 相似文献
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益生菌是可添加在饲料中对动物健康产生很多益处的活微生物,其在维持胃肠道微生物平衡、免疫调节和病原体防御中起关键作用,某些特定的益生菌菌株对加强肠上皮的完整性和调节一些免疫组分也显示出一定程度的潜力。有关益生菌的作用机制是当前研究的热点,其中,在益生菌调节肠道介导的防御反应的所有可能途径中,肠屏障功能、先天和适应性黏膜免疫反应及信号传导途径被认为在针对病原菌的肠防御反应中起重要作用。作者主要针对益生菌如何与肠道内的杯状细胞黏蛋白、三叶因子（trefoil factors,tffs）、防御素、Toll样受体（Toll-like receptors,TLRs）、分泌型免疫球蛋白A（secretory immunoglobulin A,sIgA）、热休克蛋白（heat shock proteins,HSPs）和P-糖蛋白（P-glycoprotein,P-gp）相互作用而起到调节肠道先天防御反应的作用进行了概述,以期为今后研究益生菌对肠道健康及对感染病原体的肠道如何起到有益作用奠定基础。 相似文献
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Mohammad Jalil Zorriehzahra Somayeh Torabi Delshad Ruchi Tiwari K. Karthik Kuldeep Dhama 《The Veterinary quarterly》2016,36(4):228-241
Wide and discriminate use of antibiotics has resulted in serious biological and ecological concerns, especially the emergence of antibiotic resistance. Probiotics, known as beneficial microbes, are being proposed as an effective and eco-friendly alternative to antibiotics. They were first applied in aquaculture species more than three decades ago, but considerable attention had been given only in the early 2000s. Probiotics are defined as live or dead, or even a component of the microorganisms that act under different modes of action in conferring beneficial effects to the host or to its environment. Several probiotics have been characterized and applied in fish and a number of them are of host origin. Unlike some disease control alternatives being adapted and proposed in aquaculture where actions are unilateral, the immense potential of probiotics lies on their multiple mechanisms in conferring benefits to the host fish and the rearing environment. The staggering number of probiotics papers in aquaculture highlights the multitude of advantages from these microorganisms and conspicuously position them in the dynamic search for health-promoting alternatives for cultured fish. This paper provides an update on the use of probiotics in finfish aquaculture, particularly focusing on their modes of action. It explores the contemporary understanding of their spatial and nutritional competitiveness, inhibitory metabolites, environmental modification capability, immunomodulatory potential and stress-alleviating mechanism. This timely update affirms the importance of probiotics in fostering sustainable approaches in aquaculture and provides avenues in furthering its research and development. 相似文献
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为研究不同水平的复合益生菌制剂对肉牛生长性能、屠宰性能及经济效益的影响,试验选择体重(200±4)kg肉牛60头随机分成4组,每组15个重复,每个重复1头,1组饲喂基础日粮为对照组,试验2、3、4组分别添加2.5%、5.0%、10%复合益生菌制剂,预试验7 d,试验期为56 d。结果表明:(1)试验3、4组的平均日增重较1组比分别提高19.4%、18.1%(P<0.05),试验3、4组料重比较1组比分别降低9.6%、7.2%(P<0.05),试验2、3、4组的平均采食量均高于1组(P>0.05);(2)试验2、3、4组的胴体重、屠宰率均高于1组(P>0.05),试验3、4组的宰前活重、眼肌面积较1组比分别提高10.3%、9.0%、14.3%、13.9%(P<0.05);(3)试验2、3、4组试验肉牛的每千克增重成本均低于1组,试验3、4组每千克增重的饲料成本分别减少1.0元和0.77元。综上,不同水平复合益生菌制剂的添加可以提高肉牛的生长性能、屠宰性能及经济效益,以5.0%添加为适宜。 相似文献