我们先用鼠笼捕成年健康黄胸鼠33只,分别喂食每粒含磷化锌15、20、25、30毫克的毒饵。观察结果是各组的平均死亡时间都在1～2小时左右,说明较低剂量的磷化锌也可以做为毒鼠的剂量。以后我们以含磷化锌20毫克和30毫克的毒饵,在一个生产大队内分别对118户及105户实际应用对比观察,两组的毒鼠前密度分别为10%及10.5%,每堆放置的粒数均为2粒。结果是含量20毫克并不比含量30 We first use the cage to catch 33 adult healthy Rattus flavipectus, were fed each containing 15,20,25,30 mg of zinc sulfide poison bait. The observation was that the mean time to death in each group was about 1 to 2 hours, indicating that lower doses of zinc phosphide can also be used as doses of tetramine. We later with 20 mg of zinc phosphide and 30 mg of bait, respectively, in a production brigade 118 households and 105 were compared to the actual application of observation, the two groups of rat poison density were 10% and 10.5%, respectively, placed on each pile The number of particles are two. The result is not more than 30 mg