摘要
目的 :评价溴敌隆防制家栖鼠的效果。方法 :实验室毒力测定和摄食试验 ;现场灭鼠效果考核。结果 :(1)溴敌隆对大白鼠的急性LD50 和回归方程分别为 0 .86 (0 .80～ 0 .92 )mg/kg和^Y =6 .11+17.0 7x ,慢性LD50 和回归方程分别为 0 .16 (0 .15～ 0 .18)× 5mg/kg和 ^Y =15.80 +13.72x ;对小白鼠的急性LD50 和回归方程分别为 1.19(1.0 1～ 1.2 7)mg/kg和 ^Y =4 .4 6 +9.6 9x ,慢性LD50 和回归方程分别为 0 .2 2 (0 .2 0～ 0 .2 5)× 5mg/kg和 ^Y =10 .57+8.6 0x。 (2 ) 0 .0 0 5%溴敌隆毒铒对大白鼠和小白鼠无选择和有选择摄食试验 ,都达到 10 0 %毒杀率 ;有选择试验的摄食系数分别为 0 .95和 1.4 4。 (3)现场试验 ,投毒饵 7d灭鼠率 6 6 % ,2 1d和 35d灭鼠率分别为 84 %和 95%。结论 :溴敌隆对两种家栖鼠毒性强 ,适口性好 ,毒效高。
Laboratory and field trials were carried out to evaluate the effects of bromadiolone against Rattus norvegicus and Mus musculus. The acute and chronic oral LD 50 (CL) of the rodenticide were 0.86 (0.80-0.92)mg/kg and 0.16(0.15-0.18)×5mg/kg for albino rats,and 1.19( 1.01 - 1.27 )mg/kg and 0.22(0.20-0.25)×5mg/kg for albino mice. Bromadiolone, at 0.005% in rice bait in 2 day no choice and 4 day choice feeding tests in the laboratory caused 100% mortality of both albino strains, with a high palatable index 0.95 and 1.44 respectively. In a poultry farm heavy infested by R.norvegicus, using the same baits, the control rate reached 84% three weeks after treatment, and 95% five weeks after treatment. It is concluded that bromadiolone is a very effective rodenticide against rats and mice in the field use.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
2000年第2期96-99,共4页
Chinese Journal of Vector Biology and Control
