多花黑麦草饲喂奶牛效果研究  

Studies on the efficiency of Italian ryegrass feeding dairy cows

作　　者：苟文龙[1] 张新跃[1] 李元华[1] 蒋兴德 唐一国[1] 

机构地区：[1]四川省草原工作总站,四川成都610041 [2]四川得力牧业有限责任公司,四川洪雅620360

出　　处：《草业科学》2007年第12期72-75,共4页Pratacultural Science

摘　　要：设4种不同梯度多花黑麦草Lolium multiflorum和配合饲料的日粮组成对24头黑白花奶牛进行饲喂试验,以期探讨最佳经济效益的日粮组成,为推广饲用玉米Zea mays-多花黑麦草种植系统提供理论依据。结果表明,随配合饲料饲喂量的减少,多花黑麦草采食量增加,青贮玉米的采食量不断减少。以每头饲喂6 kg配合饲料+30 kg多花黑麦草+自由采食青贮玉米试验组(2组)奶牛每天平均产奶量最高,达到11.59kg/头。以每头饲喂5 kg配合饲料+40 kg多花黑麦草+自由采食青贮玉米试验组(3组)奶品质最好,经济效益最高。24 black and white dairy cows were fed with 4 kinds rations made of Italian ryegrass and concentrates to find the most economic ration compositions and provide theoretical basis for silage corn -Italian ryegrass growing system. The result showed that with the decrease of concentrate, the intake of Italian ryegrass increased, meanwhile, the intake of silage corn reduced gradually. The group two fed with 6 kg concentrate ＋ 30 kg Italian ryegrass ＋ free intake of silage corn had the highest milk yield, 11.59 kg/head. The group three fed with 5 kg concentrate ＋ 40 kg Italian ryegrass ＋ free intake of silage corn gave the highest milk quality and profit.

关 键 词：多花黑麦草 奶牛 效果 

分 类 号：S823[农业科学—畜牧学]