几种杀鼠剂防制草原害鼠的试验研究

本文以栖息在青藏高原草场上的两种主要害鼠——高原鼢鼠和高原鼠兔为对象,对几种不同类型的杀鼠剂进行了毒力测定、适口性观察及现场灭鼠试验,以有效地控制鼠害的进一步扩大和蔓延。

An Experimental study on several Rodenticides for Controlling Rodent pest on Alpine meadow

This paper deals with toxicity determination, palatability and field trials of several rodenticides to plateau zokor (Myospalax baileyi)and plateau pika(Oehotona curzoniae).The results showed that the LD_(50) of bromadiolone, talon, diphacinone-Ha, strychnine and crimidin were 1.31mg/kg, 0.439mg/Kg, 0.94mg/kg, 15.65mg/kg and 7.84mg/kg for plateau zokor respectively, and the LD_(50) of bromadiolone, talon, chlorophacinone, diphacinone-Na, gopha acide and crimidin were 0.43mg/kg, 0.138mg/kg, 1.229mg/kg, 8.68mg/kg, 7.81mg/kg and 1.733mg/kg for plateau pika respectively.In preference tests, 0.02% bromadiolone bait had the best palatability to plateau zokor, and 0.05% chlorophacinone and 0.01% bromadiolone baits did to plateau, pika.The field tests indicated that the best efficiency of elimination to plateau zokor were 74.40% with 0.075% diphacinone-Na grain baits and 70.53% with talon grain baits, and to plateau pika was 100.0% with 0.01% bromadiorone grain baits.