关键词: 鼠类, 生育率控制, 种群控制, 竞争性繁殖干扰, 综合防治

Abstract: 1.The contraception control is a different strategy of rodent management from the traditional culling which emphasize on reducing the birth rate instead of increasing mortality of rodent population．
2.In the strategy of traditional contraception control，the competitively reproductive interference by sterile individuals to reproductive ones was ignored and thus the potentiality of contraception in rodent control was less estimated．
3.After theoretical analysis we believe contraception is as efective as traditional culling in controlling rodents even without consideration of competitively reproductive
interference by sterile individuals．If such interference is taken into account，contraception may be much better than culling．
4.A new strategy of using contraception was suggested in this paper．It focused on the combination between the contraception control and culling．In this way，The new strategy owned both the advantages of contraception control and culling, i.e.crash rodent population quickly and keep them at a very low level for a long time．

Key words: Rodent, Contraception control, Birth control, Competitively reproductive interference, rodent control