【摘 要】
：
目的 研究不同品系大小鼠的食物利用率.方法 选择SPF级Wistar,SD,KM, ICR, BALB/c不同品系大小鼠100只,每品系20只,雌雄各半.饲喂30 d,自由采食及饮水,每48 h更换饲料及垫料.饲料处理：每次称量并记录饲料的添加量及剩料量,每次称量前饲料均在65℃干燥箱干燥2h,自然冷却后称量.垫料处理：每次称量并记录垫料的添加量及48 h后垫料的重量(饲喂48 h后的垫料需将大小
【机 构】
：
新疆医科大学医学实验动物中心,新疆乌鲁木齐830011
论文部分内容阅读
目的 研究不同品系大小鼠的食物利用率.方法 选择SPF级Wistar,SD,KM, ICR, BALB/c不同品系大小鼠100只,每品系20只,雌雄各半.饲喂30 d,自由采食及饮水,每48 h更换饲料及垫料.饲料处理：每次称量并记录饲料的添加量及剩料量,每次称量前饲料均在65℃干燥箱干燥2h,自然冷却后称量.垫料处理：每次称量并记录垫料的添加量及48 h后垫料的重量(饲喂48 h后的垫料需将大小鼠粪便与垫料分离),每次称量前垫料均在65℃干燥箱干燥2h,自然冷却后称量.48 h做一次数据处理,每天观察大小鼠健康状况,做好实验记录.不同品系,不同性别大小鼠分笼喂养,5只为一笼共计20笼.结果 不同品系大小鼠实际食物利用率均比原食物利用率大,且均有统计学意义(P＜0.05)；同种品系雄性大小鼠均比雌性大小鼠的实际食物利用率高；不同生长期大小鼠间的实际食物利用率整体情况处于下降趋势.结论 大小鼠由于磨牙等习性造成食物浪费量对食物利用率造成很大的偏差.
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