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在厌氧条件下研究了西南地区一种典型土壤微生物芽孢杆菌Bacillus sp.dwc-2对模拟地下水中U(Ⅵ)的还原行为,重点考察了时间、无机阴离子、腐殖酸(HA)及富里酸(FA)对还原的影响,并利用TEM、EDS、SAED和XPS对还原后的样品进行了表征。结果表明:在pH=7.0、cNaHCO3=5 mmol/L和T=303 K条件下,Bacillus sp.dwc-2对U(Ⅵ)的还原率随时间的增...
禾谷镰刀菌Fusarium graminearum可引起小麦赤霉病,该病严重威胁我国小麦的质量安全。本研究从生物防治的角度出发,分离筛选拮抗菌,研究拮抗菌的拮抗特性和拮抗能力。试验采用系列稀释法和平板对峙法从小麦样品中分离筛选获得禾谷镰刀菌拮抗菌AX-3,根据16S rDNA基因、gyrB基因序列构建的系统发育进化树以及生理生化特性结果,菌株AX-3被鉴定为解淀粉芽胞杆菌Bacillus amyl...
[目的]以穴盘育苗番茄为试材,研究分析了Bacillus amyloliquefaciens Pb-4对植物的促生作用及应用潜力,为该菌在番茄穴盘育苗上的应用提供理论依据。[方法]采用穴盘育苗的方法,以Bacillus amyloliquefaciens Pb-4在PYJ培养基中培养48 h的发酵液为接种剂,设置不接种(CK)和接种20(T20)、60(T60)、100(T100)和200(T20...
Effects of probiotic supplement (Bacillus subtilis and Lactobacillus acidophilus) on feed efficiency, growth performance, and microbial population of weaning rabbits
Bacillus Subtilis Lactobacillus Acidophilus Probiotic Rabbit
2017/3/8
This study aimed to investigate the effects of single or/and double strains of probiotic supplement on feed efficiency, growth performance, and microbial population in distal gastrointestinal tract (G...
Apparent total tract digestibility and ileal digestibility of dry matter,nitrogen,energy and amino acids in conventional,Bacillus subtilis-fermented and enzyme-treated soybean meal fed to weanling pigs
growth performance fermented soybean meal anti-nutritional factors antigens lectins trypsin inhibitors Bacillus subtilis T-cannula surgery
2016/12/8
Apparent total tract digestibility (ATTD), apparent ileal digestibility (AID) and standardised ileal digestibility (SID) of dry matter, nitrogen, energy and amino acids were evaluated in six weanling ...
改性磁性纳米颗粒固定内生菌Bacillus nealsonii吸附废水中Cd2+的特性研究
内生菌Bacillus nealsonii 改性纳米Fe3O4颗粒 固定化 Cd2+ 生物吸附
2016/12/16
从重金属超累积植物龙葵体内提取内生菌Bacillus nealsonii,采用二氧化硅改性纳米Fe3O4颗粒与海藻酸钠将其包埋交联进行固定化,制得一种新型球状生物吸附剂,并应用于废水中Cd2+的吸附处理.同时,通过正交实验研究了该球状生物吸附剂的最佳制备条件和吸附处理条件,并采用扫描电镜等表征手段与构建吸附动力学考察了其吸附特征.结果表明,球状生物吸附剂的最佳制备条件为:改性纳米Fe3O4颗粒质量...
微生物胞外聚合物(Extracellular Polymeric Substances,EPS)在废水中重金属的吸附去除过程中起着非常重要的作用.苯胺黑药高效降解菌(Bacillus vallismortis)对苯胺黑药有良好的降解能力,但对其吸附重金属的性能研究还不充分.因此,本文采用3种方法提取苯胺黑药高效降解菌的EPS,主要考察了pH、温度、底物浓度和时间对重金属去除效果的影响.结果表明,热...
Effect of Bacillus subtilis Natto on Meat Quality and Skatole Content in TOPIGS Pigs
Bacillus subtilis Natto Bacillus coagulans Meat Quality Skatole TOPIGS Pig
2016/5/20
This study investigated the effect of Bacillus subtilis (B. subtilis) natto on meat quality and skatole in TOPIGS pigs. Sixty TOPIGS pigs were randomly assigned to 3 groups (including 5 pens per group...
Microbiological method using Bacillus megaterium with fusidic acid for detection of macrolides in milk
microbiological test antibiotic erytromycin tylosin tilmicosin
2016/2/23
The microbiological method to attain a sensitive detection of macrolides using Bacillus megaterium in agar medium with fusidic acid was designed. To this aim, Mueller-Hinton medium fortified with gluc...
Comparison of the Effects of pH-Dependent Peppermint Oil and Synbiotic Lactol (Bacillus coagulans + Fructooligosaccharides) on Childhood Functional Abdominal Pain: A Randomized Placebo-Controlled Study
Mentha Piperita Synbiotics Abdominal Pain
2015/10/22
Background: Still there is no consensus on the best treatment for abdominal pain-related functional Gastrointestinal Disorders (FGIDs).
The Effect of Bacillus-based Feed Additive on Growth Performance, Nutrient Digestibility, Fecal Gas Emission, and Pen Cleanup Characteristics of Growing-finishing Pigs
Fecal Gas Emission Growth Performance Growing-finishing Pigs Nutrient Digestibility
2016/5/18
Bacillus-based feed additive was evaluated for its efficacy on growth performance, nutrient digestibility, fecal gas emission, and the consumption of time and amount of water for cleaning the pen of g...
Bacillus pumilus – a new phytopathogen of Scots pine – Short Communication
Pinus sylvestris bacteriosis phytopathogenic bacteria soft rot
2015/5/18
Large bleeding lesions on stem and branches of pine trees, wet black spots and depressed cancer wounds
of different sizes at the base of knots, dying off the bark around knots and sapwood exposure o...
Effect of Bacillus amyloliquefaciens-based Direct-fed Microbial on Performance, Nutrient Utilization, Intestinal Morphology and Cecal Microflora in Broiler Chickens
Intestinal Morphology Nutrient Utilization Performance
2016/5/17
The present study was conducted to evaluate the effect of the dietary supplementation of Bacillus amyloliquefaciens-based direct-fed microbial (DFM) on growth performance, nutrient utilization, intest...
Nutritional Value of Rice Bran Fermented by Bacillus amyloliquefaciens and Humic Substances and Its Utilization as a Feed Ingredient for Broiler Chickens
Broiler Chickens Crude Fiber Fermentation Performance Rice Bran
2016/5/17
An experiment was conducted to increase the quality of rice bran by fermentation using Bacillus amyloliquefaciens and humic substances and its utilization as a feed ingredient for broiler chickens. Th...
Effect of Bacillus subtilis,Clostridium butyricum and Lactobacillus acidophilus endospores on growth performance,nutrient digestibility,meat quality,elative organ weight,microbial shedding and excreta noxious gas emission in broilers
ammonia gas emission body weight gain bursa weight Escherichia coli Lactobacillus
2015/4/30
This study was conducted to evaluate the effects of Bacillus subtilis, Clostridium butyricum and Lactobacillus acidophilus (tri-strain probiotics, TSP) endospores in broilers. TSP can benefit the host...