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hou zhi xiao fen zhi liao ren gong you fa ji da chang gan jun bing de xiao guo guan cha
Author(s): 
Pages: 36
Year: Issue:  3
Journal: Liaoning Journal of Animal Husbandry and Veterinar

Abstract: <正> 选用25日龄、体重200~220克的健康艾维茵雏鸡150只,按常规饲养方式饲养,未经大肠杆菌苗免疫。将试验鸡随机分为5组,每组30只。A组(感染、给药组)、B组(感染、给药组)、C组(感染、给药组)、D组(感染、不用药组)、E组(健康对照组、不用药)。各用药组药物的用法用量分别为A组10克/千克、B组 20克/千克、C组 40克/千克,均混于饲料中喂给,每日2次,连用10天。 人工诱发鸡大肠杆菌病标准菌种(O_(78))经供试鸡复壮,用普通向汤培养制备攻毒菌液。每只胸肌注射菌液0.3毫升,约0.51亿个活菌,使其发病。A、B、C组鸡注射菌液后7~8小时,各组分别按药物治
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