湖北农业科学 ›› 2020, Vol. 59 ›› Issue (16): 112-114.doi: 10.14088/j.cnki.issn0439-8114.2020.16.024

• 畜牧·兽医 • 上一篇    下一篇

青贮甜高粱替代青贮玉米对羔羊生产性能和养分消化代谢的影响

王宏博1,2, 李维红1,2, 杨晓玲1,2, 高雅琴1,2, 席斌1,2   

  1. 1.中国农业科学院兰州畜牧与兽药研究所,兰州 730050;
    2.农业农村部畜产品质量安全风险评估实验室(兰州),兰州 730050
  • 收稿日期:2020-03-03 出版日期:2020-08-25 发布日期:2020-10-09
  • 通讯作者: 高雅琴(1964-),女,研究员,研究方向为畜产品质量评价,(电子信箱)13609312788@163.com。
  • 作者简介:王宏博(1977-),男,甘肃庄浪人,副研究员,博士,研究方向为反刍动物营养及畜产品质量评价,(电话)19993138179(电子信箱)wanghongbo@caas.cn
  • 基金资助:
    国家农产品质量安全风险评估重大专项(GJFP201701504); 中央级公益性科研院所基本科研业务费专项(1610322019010)

Effect of forage sweet sorghum silage instead of silage corn on nutrient digestibility, body weight gain of lambs

WANG Hong-bo1,2, LI Wei-hong1,2, YANG Xiao-ling1,2, GAO Ya-qin1,2, XI Bin1,2   

  1. 1. Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China;
    2. Quality Safety Risk Assessment of Animal Products (Lanzhou), Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
  • Received:2020-03-03 Online:2020-08-25 Published:2020-10-09

摘要: 为了研究饲用甜高粱[Sorghum bicolor ( L.) Moench]青贮替代玉米青贮对羔羊生产性能及养分消化代谢的影响,选取3月龄(28.10±0.32 kg)健康断奶羔羊30只,随机分为3组(Ⅰ为玉米青贮组、Ⅱ为甜高粱玉米青贮组、Ⅲ为甜高粱青贮组),每组10只,隔栏单独进行饲养和消化代谢试验。结果表明,饲用甜高粱青贮替代玉米青贮对羔羊的生产性能无显著影响(P>0.05)。Ⅱ组羔羊对磷的表观消化率极显著高于Ⅲ组(P<0.01),而Ⅰ组羔羊对磷的表观消化率与Ⅱ组差异不显著(P>0.05)。羔羊对玉米青贮和50%甜高粱青贮替代50%玉米青贮的其他养分的表观消化率均未产生显著影响(P>0.05),而对其他营养素未产生显著影响。说明饲用甜高粱青贮可以作为肉羊的优质饲料,50%的饲用甜高粱秸秆和青贮分别替代玉米青贮,可提高N的存留率和羔羊对CP消化率。

关键词: 饲用青贮甜高粱[Sorghum bicolor (L.) Moench], 青贮玉米, 羔羊, 生产性能, 消化代谢

Abstract: In order to study the effect of forage sweet sorghum silage instead of silage corn on lamb performance and nutrient digestion and metabolism. Thirty 3-month-old (28.10±0.32 kg) healthy weaned lambs were randomly divided into three groups (I was corn silage group, II was sweet sorghum corn silage group, III was sweet sorghum silage group), each group had 10 lambs, and were fed and digested separately. The results showed that there was no significant effect on the performance of lambs (P>0.05). The apparent digestibility of group Ⅱ was significantly higher than that of group Ⅲ (P<0.01), while the different between that of groupⅠand group Ⅱ was not significant (P>0.05). Lamb had no significant effect on the apparent digestibility of other nutrients in corn silage and 50% sweet sorghum silage instead of 50% corn silage (P>0.05), but had no significant effect on other nutrients. The results showed that sweet sorghum silage can be used as high quality feed for meat sheep, and 50% of sweet sorghum straw and silage can replace corn silage respectively, which can improve the N retention rate and CP digestibility of lamb.

Key words: forage sweet sorghum silage, silage corn, lambs, production performance, digestion and metabolism

中图分类号: