最小致死量

目的通过观测BPI700-Fcγ1700嵌合基因导入小鼠对最小致死量E。

Objective To observe the resistance of mice that were transfected with BPI_700-Fc γ 1_700 chimera gene to minimal lethal dose ( MLD ) of E.

方法：小鼠急性毒性实验（半数致死量、最小致死量、最大耐受量）；

Metho ds : Mice acute toxicity test ( median lethal dose , minimum lethal dose , maximum tolerance dose );

在最小致死量E.智能型氧量分析仪的设计

After E. The Design for Intelligent Oxygen volume analyzer

Weibull分布：药物最小致死量的理论分布

Weibull Distribution : Theoretical Distribution of the Minimal Lethal Dosage of Drugs

用甲硝唑体外分别作用于7个分离株，得其最小致死量（MLC）。

Minimal lethal concentrations ( MLC ) of metronidazole on the isolates were measured in vitro .

采用较低的细胞密度铺板，加入含最小致死量G418的DMEM培养基进行再次筛选；

The cells were planked with lower cell density , and further screened in DMEM medium containing G418 MFD ;

利用重组质粒转染细胞的抗新霉素特性，经G418最小致死量筛选出抗性细胞克隆，免疫组织化学染色观察该细胞表达人PDGF-B基因情况。

By using the characteristics of anti-neomycin effect of the cloning expression vector , a minimal mortal dosage G418 was applied to obtain the neomycin resistant cell clone which showing human PDGF-B gene highly expressed .

对两株病毒的毒力进行了鉴定，测定鸡胚最小致死量平均死亡时间（MDT）分别为52h和54h；

The isolates were confirmed to be Newcastle disease virus by HA and HI test . Mean death time ( MDT ) of chicken embryos of these isolates were 52 and 54 h , respectively .

在最小致死量E。

( 2 ) After E.

通过分离纯化、培养特性和生化反应的观察、毒素溶血活性和最小致死量的测定及中和试验对正常和猝死黑山羊肠内容物中的魏氏梭菌进行了初步研究。

Clostridium welchii isolated from intestine contents of normal and sudden death black goats is preliminarily studied by cultural performance and biochemical reaction , determination of hemolytic activity , minimum lethal dose and neutralization test of toxins .