关键词: 屏障设施, 中央排风通气笼具系统, 独立通气笼具系统, 小鼠

Abstract: Objective To compare the performance of closed exhaust ventilation central cages ( EVC ) and individual ventilated cage ( IVC) systems for rats and mice. Method Through the breeding space of the EVC system and ICV system, the operation process ( cage changing process and cleaning process) , damage rate, overall disinfection and cleaning process, mouse breeding environmental conditions ( number of air changes and wind speed and ammonia concentration ) , cage evaluation of indicators such as internal noise decibels, power outages or mechanical failures, and alarm systems. Result EVC cage covers a smaller area and easier to wipe and clean. The operation of observation, cage replacement and cleaning process are more simple than IVC system, escapically with lower accessory loss and energy consumption. But IVC cage performs better in washing, sound insulation,etc.

Key words: closed breeding, exhaust ventilation central cage system, individual ventilated cage system, laboratory animals