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C.肉毒杀鼠素是我国近年来研制开发的一种新型生物灭鼠剂。该药具有高效、适口性好、靶谱广、中毒作用缓慢、无二次中毒、无残留、不污染环境等特点。1996年农业部将该药确定为我国北方十一省(区)草地灭鼠的推广药剂。我省已应用C.肉毒杀鼠素灭鼠19.7万亩,防治效果达85％～91％。为使广大农牧民掌握C.肉毒杀鼠素的特性和使用方法,现将应用C.肉毒杀鼠素草地灭鼠技术简要介绍如下。1 理化特性及杀鼠机理 C.肉毒杀鼠素为灰白色冻干生物制剂。毒力为≥300万MLD小白鼠静注/ml,水溶性,pH值3.5～6.8时稳定,在碱性条件下减毒快。C.肉毒杀鼠素是一种
C. Botulinum toxin is a new type of biological rodenticides developed in recent years in China. The drug has the characteristics of high efficiency, good palatability, broad target spectrum, slow poisoning effect, no secondary poisoning, no residue and no pollution to the environment. In 1996, the Ministry of Agriculture identified the drug as a promotion drug for rodent control in the grasslands of northern China’s eleven provinces (autonomous regions). Our province has applied C. botulinum toxins rodent control 197,000 mu, prevention and control of 85% to 91%. In order to make the majority of farmers and herders grasp the characteristics and use of C. botulinum, the use of C. botulinum grass rodent control technology will be briefly described below. 1 Physicochemical properties and mechanism of killing rats C. botulinum toxin as gray lyophilized biological agents. Toxicity ≥ 3000000 MLD mice intravenous / ml, water-soluble, stable at pH 3.5 to 6.8, fast-reducing in alkaline conditions. C. botulinum toxin is a