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C型肉毒梭菌毒素杀灭高原鼠兔的研究

沈世英   

  1. 青海省畜牧厅
  • 出版日期:2011-11-23 发布日期:2011-11-22

A PRELIMINARY STUDY ON BOTULIN MODEL C FOR KILLING PIKA

SHEN Shiyin   

  1. Animal Husbandry Department of Qinghai Province
  • Online:2011-11-23 Published:2011-11-22

摘要: 本文报道用C型肉毒梭菌毒素杀灭高原鼠兔的试验,冬季灭鼠效果达98%。作为一种新的杀鼠剂,具有毒性强、用量少、成本低、残效期短、无二次中毒、不污染环境、对人畜安全、使用方便等优点。是我国首次用生物毒素灭鼠成功的试验,打开了生物灭鼠的新途径。

关键词: 肉毒梭菌, 肉毒梭菌毒素, 外毒素, 灭鼠, 高原鼠兔

Abstract: We determined the virulence of botulin model C with no germ for Plateau pika, characterization of toxin and killing test in vast area. The botulin model C has a strong virulence to pika, the main pest in Qinghai-Tibetan Plateau. Produced by rutine method, it is one hundred thousand MLD white mcuse/ml.The LD50 is 1.71μl/ kg(intubation oral) to pika. The dosage of botulin has a close relation to death time. Heavy dosage makes pika die rapidly while light slowly. After taking it, pika show immuno-reaction quickly, secondry poisoning will not happen. Make the botulin poison bait and it is palatable to pika. In natural environment it lose its virulence rapidly.We had deratization tests in Tie-bujia of Gonghe county, Gade county, Darlag county and Tongde county of Qinghai Province in autumn, winter and spring for two years.The test area added up to more than 13,334ha.By testing in large wild area, using the botulin poison bait to kill pika in whiter, it had a powerful poison effect, coming up to 98%.As a new rodenticide, it has many advantages of being convenient in use, in safety to man or animal, without environmental pollution and so on, and may be put into use to a great extent.

Key words: Botulinum, Botulin, Exotoxin, Deratization, Plateau pika, Ochotona curzoniae