大肠杆菌

The aerobic plate count was determined before and after these treatments. The results showed that under the experimental condition, Escherichia coli and Staphylococcus aureus were inactived signi...

结果表明：试验条件的超高压处理对大肠杆菌、金黄色葡萄球菌的杀灭效果很好，残活率最大下降了8.48、5.90对数；对生鲜猪肉和芥菜制品中的微生物具有较好的杀灭效果，残活率最大下降了3.45、3.57对数。

Swine enteropathogenic E. colis were rejuvenescenced and 6 of them were selected to prepare blood serum. We had tested the reactance of cross agglutination and agar diffusion between the strains and the blood serums. No. 300 and No. 343 were selected because they had highly cross reaction. To test superantigen of No.300 and No.343, the antigens made by both of them immunized piglets, and then we detected the serum 0D values with indirect ELISA. The OMP and PF of No. 300 and No. 343 were extracted for SDS—PAGE and westen-blotting.

本研究针对10株猪致病性大肠杆菌，经复壮后选取致病性强的6菌株作为供试菌株，制备免疫血清与这6菌株的多种抗原分别进行交叉凝集试验和琼脂扩散试验，根据各菌株抗原的交叉反应程度，筛选出抗原交叉程度高的菌株300和343，检测两菌株超抗原的毒性作用，以不同方式制备抗原免疫仔猪，用间接ELISA检测免疫效果，并提取菌株300和343的外膜蛋白和渗透因子经SDS—PAGE及免疫印迹试验，进行相关分析。

This makes the environment a less hospitable place for E. coli and other disease-causing bacteria to breed.

这使得环境不相宜的地方大肠杆菌和其他致病细菌的滋生。

Compared with the control, acidifiers could reduce the pH value, change the microbiological circumstances and stop the growth of E-coli and improve the quantities of lactobacillus.

试验结果表明，与空白对照组相比，复合酸化剂降低了肉鸡的肠道pH，改善了微生物环境，抑制了大肠杆菌的生长，同时促进了乳酸杆菌的增殖。

Twenty-four crossbred early weaned piglets with an average initial weight of 6.10±0.35kg,weaned at 28±1 day of age,were divided into four groups to determine the effect of supplemental acidifiers on gastric acid secretion,digestive enzyme activities, and intesinal microflora.

添加0.25 %复合酸提高了胃蛋白酶(P.10)和胃酸分泌(P.10)，显著提高了十二指肠内容物中胰蛋白酶和淀粉酶活性(P.05)，添加1.5 %柠檬酸有提高上述两种酶活性的趋势(P.15 ，P.10)，但对胃酸和胃蛋白酶分泌没有影响，显著降低了结肠大肠杆菌数量(P.05)。

The optimal conditions for coating antigen concentration and antisera dilution were 0.6μg/mL and 1∶64,respectively.

诱导表达的重组P25蛋白纯化后进行包被，十字交叉滴定试验确定，此ELISA的最适抗原包被浓度为0.6μg/mL，血清最佳稀释度为1∶64，与大肠杆菌、多杀性巴氏杆菌感染鸭血清无交叉反应。

The antisera can recognize not only recombinant IRF-7 expressed in E. coli, but also transfected IRF-7 in mammalian cells.

该抗血清不但能识别来源于大肠杆菌的抗原，还能检测真核细胞内转染后表达的IRF-7。

In the medium autoclaves and solidified, with good preparation containing different does of anti-bacterial coating solution of the interior walls and E.coli in the Petri dish on the coating, so that after adding to incubators in training 24-48 hours to observe the phenomenon.

在培养基高压灭菌并凝固之后，用配制好的含有不同剂量抗菌剂的内墙涂料溶液和大肠杆菌在培养皿上涂布，然后放入恒温箱中培养24—48h，观察现象。

Re-sults:it was shown that Nano MgO had excellent germicidal efficacy to the Escherichia coli and Staphylococcus aureus.To such spore as Bacillus subtilis var.niger spore,Nano MgO also produced good germicidal effect.It was proposed that abrasiveness,alka-linity,electrostatic attraction,and oxidizing power of nano MgO all combined to promote these biocidal properties.

结果： ①纳米氧化镁能有效杀灭大肠杆菌，对枯草杆菌黑色变种芽孢也有显著的杀灭效果；②纳米氧化镁对金黄色葡萄球菌和枯草杆菌黑色变种芽孢有很好的抑菌作用；③纳米氧化物的磨蚀性、碱性、氧化性以及对微生物的静电吸附使它具有抑菌和杀菌作用。

The calf diarrhea is the clinical disease of familiar of the pathogenic E. coli infect calfs.

犊牛腹泻是由致病性大肠杆菌感染犊牛引起的一种常见临床疾病。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。