Experiment of Population Control with Norgestrelem (NGT) on Gansu Zokor ( Myospalax cansus Lyon) in Mountainous Area of Southern Ningxia
Zhang Xianli 1,Tang Wei 2,Gu Zhenyun 1,Wang Yuke 1,Zhang Yuhai 2,Cheng Hong 2 (1. School of Life Science, Ningxia University, Yinchuan 750021, China; 2. Yuanzhou Grassland Station, Guyuan 756100, China)
From March to May of 2004 an experiment of population control on Gansu zokor ( Myospalax Cansus Lyon) with a sterilant being used to human being was carried out in Liugou of Yuanzhou district of the city of Guyuan. The sterilant is quick-acting contraception tabellae norgestrelem produced by Beijing pharmaceutical factory in 1991. The treatment effects on birth and density control of Gansu zokor population were observed at mid-May of the year, the control rates of the birth and the population density are 83.3% and 41.8%, respectively. The result shows that this drug works well on the population control of Gansu zokor.