中草药添加剂对奶牛干物质采食量及瘤胃内环境的影响
China Dairy Cattle(2010)
Abstract
试验选择4头体重相近,体况良好,安装永久性瘤胃瘘管的荷斯坦牛。采用4×4拉丁方设计,在保持正常饲养管理的情况下,对照组饲喂基础日粮,试验组在基础日粮的基础上添加中草药添加剂Ⅰ、中草药添加剂Ⅱ、中草药添加剂Ⅲ。试验共分为四期,每期试验共21d,其中预试期7d、正试期14d。结果表明:中草药添加剂能改变奶牛干物质的采食量,改善瘤胃内环境,提高瘤胃液pH,降低瘤胃液NH3-N浓度,提高瘤胃液MCP浓度。
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Key words
NH3-N,Dry matter intake,Chinese Herbs,MCP,pH
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