FIELD EFFICACY OF SECOND-GENERATION ANTICOAGULANT RODENTICIDES IN MANAGING RODENT PESTS IN POULTRY FARMS

摘要

Rodents, mainly rats and mice inflict incalculable losses to the poultry industry. To address the menace of rodents in poultry anticoagulant rodenticides which are chronic in action and safer to non targets were attempted to check the menace of rodents in poultry. Two second generation anticoagulant rodenticides viz.., Bromadiolone (0.005%) as ready to use wax block and Difethialone (0.0025 %) as freshly prepared bait were evaluated for their efficacy in managing rodents in poultry. The trials were conducted in two poultry farms and evaluation of rodenticide were made by using two census method. The main species responsible for the damage were Rattus rattus and Mus musculus. The infestation level at both the farms were uniform as evident from pretreatment data of trapping (4.67 and 3.67 rodents per day) and census baiting (103S/ and 1005 g total consumption of bait at two sites). The mean control success as assessed by two method of census (Trapping and census baiting) was 80.6% with bromadiolone (0.005%) and 78.14% with that of difethialone (0.0025%) within two weeks of treatment. The mortality in rodents after treatment with anticoagulant rodenticides started from 4th day and lasted upto 14 days.