摘要
为充分利用甘蔗梢资源,采用两因素随机区组试验设计,选用6—8月龄湖羊270只(平均体重为22.64±1.73kg),在甘蔗梢中分别添加尿素(0.6%)、秸秆+米糠(10%+10%)、甲酸(0.6%)和NaCl(0.5%)进行青贮,以直贮为对照组,并比较A组(50%精料+50%青贮料)、B组(35%精料+65%青贮料)和C组(20%精料+80%青贮料)不同精粗比饲喂湖羊的生产性能及经济效益。结果表明:1)青贮料饲喂湖羊对其日增重和饲料转化率的影响依次为0.6%尿素>10%玉米秸秆+10%米糠>0.6%甲酸>0.5%NaCl>直贮;对日采食量的影响依次为0.5%NaCl>直贮>0.6%甲酸>0.6%尿素>10%玉米秸秆+10%米糠。其中0.6%尿素组中B组饲喂效果最好,显著高于A组和C组(P<0.05);10%玉米秸秆+10%米糠中B组饲喂效果最好,显著高于A组和C组(P<0.05);0.6%甲酸组中C组的饲喂效果最好,显著高于A组和B组(P<0.05);0.5%NaCl处理组中A组的效果显著高于B组和C组(P<0.05)。2)对其生产经济效益的影响依次为0.6%尿素>直贮>0.5%NaCl>10%玉米秸秆+10%米糠>0.6%甲酸。
Four kinds of silage are composed of sugarcane top with four different additives （0.6 % urea, 10% cornstalk ＋ 10% rice bran, 0. 6% formic acid and 0. 5% NaCl respectively. The production performance and economic benefit of 270 Hu Sheep with 6-8 months old （22.64 ±1.73 kg average body weight） fed with 50% concentrate feed -k 50% silage （Group A ）, 35% concentrate feed ＋ 65% silage （Group B） and 20% concentrate feed ＋ 80% silage （Group C） respectively are compared by using a two- factor randomized block design to screen the sugarcane top processing technology with a good economic benefit and the optimum silage to concentrate ratio for Hu Sheep breeding. Results： The effects of different silage on daily gain and feed conversion rate of Hu Sheep are sugarcane top ＋ 0. 6% urea〉 sugarcane top ＋ 10% cornstalk ＋ 10% rice bran 〉 sugarcane top ＋0. 6% formic acid 〉sugarcane top ＋ 0.5% NaCl 〉 direct sugarcane top silage. The effect of different silage on daily feed intake of Hu Sheep is sugarcane top ＋ 0. 5% NaCl〉 direct sugarcane top silage ＋ sugarcane top ＋ 0. 6% formic acid 〉sugarcane top ＋ 0.6% urea 〉 sugarcane top ＋ 10% cornstalk ＋ 10% rice bran. In the treatment of sugarcane top ＋ 0.6% urea, the feeding effect of Hu Sheep fed with 35% concentrate feed ＋ 65% silage （Group B） is significantly higher than Group A and Group C, in the treatment of sugarcane top ＋ 10% cornstalk ＋ 10% rice bran, the feeding effect of Hu Sheep fed with 35% concentrate feed ＋ 65% silage （Group B） is significantly higher than Group A and Group C. In the treatment of sugarcane top ＋ 0.6% formic acid, the feeding effect of Hu Sheep fed with 20% concentrate feed ＋ 80% silage （Group C） is higher than Group A and Group B significantly. In the treatment of sugarcane top ＋ 0.5 % NaCl, the feeding effect of Hu Sheep fed with 50% concentrate feed ＋ 50% silage （Group A ） is higher than Group B and Group C significantly. 2） The effect of different five silage on production economic benefit of Hu Sheep breeding is sugarcane top ＋ 0.6% urea 〉 direct sugarcane top silage 〉 sugarcane top ＋ 0.5% NaCl 〉 sugarcane top ＋ 10% cornstalk ＋ 10% rice bran 〉 sugarcane top ＋ 0.6% formic acid.
出处
《贵州农业科学》
CAS
2017年第5期68-73,共6页
Guizhou Agricultural Sciences
基金
贵州省星火计划项目"蔗稍资源饲料化养畜利用技术示范推广"[黔科合专项字(2015)5324]
关键词
甘蔗梢
添加剂青贮
湖羊
生产性能
经济效益
sugarcane top
additives silage
Hu Sheep
production performance
economic benefit
