草业科学2016，Vol.33Issue(9)：1868-1874,7.DOI:10.11829/j.issn.1001-0629.2016-0119
杂交狼尾草、羊草不同干草比例对奶牛生产性能和乳品质的影响
Effects of different rations of hybrid Pennisetum americanum×P.purpureum cv.Minmu 6 in Leymus chinensis hay on production performance and milk quality of dairy cows
摘要
Abstract
The effects of different rations of fresh hybrid P .americanum × P .purpureum cv.Minmu 6 in Ley-mus chinensis hay on production performance and milk quality of dairy cows were studied using a randomized block experiment with 24 Holstein dairy cows which were first birth with similar milk production(15 kg).The experiment had 6 different ratios of fresh Minmu 6 forage (CK,0;Group Ⅰ,7.50 kg;Group Ⅱ,15.00 kg;Group Ⅲ 22.50 kg;Group Ⅳ,30.00 kg;and Group Ⅴ,37.50 kg)with 4 cows in each group and had 40 days treatment period including 10 days for pre-trial period and 30 days for regular trial period.In summer around 30~37 ℃,there was no differences (P>0.05)between treatments fresh Minmu 6 forage for dry matter intake and milk production.The milk production of the experimental group with fresh forage was more stable than that of the control group.Theα-linolenic acid (ALA)content of milk in Group Ⅲ with 22.50 kg fresh Minmu 6 forage was 15.88 mg•100 g-1 which increased by 43.1% compared with CK (P<0.05).In conclusion,fresh Minmu 6 forage in hay was helpful to stable the milk production and can improve ALA content of milk.关键词
杂交狼尾草/奶牛/α-亚麻酸/生产性能Key words
Pennisetum americanum×P .purpureum/dairy cows/α-linolenic acid/production performance分类
农业科技引用本文复制引用
冯德庆,黄勤楼,黄秀声,陈钟佃,钟珍梅..杂交狼尾草、羊草不同干草比例对奶牛生产性能和乳品质的影响[J].草业科学,2016,33(9):1868-1874,7.基金项目
福建省属公益类科研院所基本科研专项(2015R1017-2) （2015R1017-2）
公益性行业农业科研专项(201303094-04) （201303094-04）
国家科技支撑项目(2014BAD15B01) （2014BAD15B01）
福建省农业科学院科技创新团队PI项目“种养结合循环模式构建与农牧资源高效利用技术集成推广” （）
