【摘要】 40头中国荷斯坦牛被分为2组,试验组饲喂甜高粱青贮料+配合精料,对照组饲喂玉米秸秆青贮料+配合精料,经80d饲喂,结果表明试验组头日均比对照组多产奶5.25kg,产奶量提高12.16%,头日均节省精饲料2kg,差异极显著(P<0.01),试验组头日均增收4.54元,经济效益明显。更多还原

【Abstract】 40 heads of Chinese Holstein cattle were randomly divided into two groups, which were fed with sweet sorghum silage or corn silage and supplemented with same concentrate for 80 days, respectively. Results showed that mean milk yield per cattle of the group fed with sweet sorghum silage is higher that of the group fed with corn silage for 5.25 kg, which was increased by 12.16 percent. Mean concentrate intake per cattle of the group fed with sweet sorghum silage is lower that of the group fed with corn silage for 2 kg (\%P\%<0.01). Mean economic profit per cattle of the group fed with sweet sorghum silage is higher that of the group fed with corn silage for $4.54.更多还原