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