畜牧与饲料科学 ›› 2021, Vol. 42 ›› Issue (2): 42-47.doi: 10.12160/j.issn.1672-5190.2021.02.008

• 动物营养与饲料科学 • 上一篇    下一篇

天然牧草型全混合日粮颗粒饲料配方筛选研究

孙林1,2, 肖燕子3, 房永雨1, 吴晓光4, 娜娜1, 殷国梅1, 刘思博1, 薛艳林1   

  1. 1.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031;
    2.中国农业大学草业科学与技术学院,北京 100193;
    3.呼伦贝尔学院农林学院,内蒙古 呼伦贝尔 021000;
    4.内蒙古自治区土地调查规划院,内蒙古 呼和浩特 010055
  • 收稿日期:2020-12-09 出版日期:2021-03-30 发布日期:2021-04-16
  • 通讯作者: 薛艳林(1979—),男,研究员,博士,主要研究方向为牧草生产与利用。
  • 作者简介:孙林(1988—),女,副研究员,博士,主要研究方向为牧草生产与利用。
  • 基金资助:
    国家自然科学基金项目(32060403); 内蒙古农牧业科学院青年创新基金项目(2018QNJJM03、2018QNJJM05)

Optimum Formula Selection of Native Grass-type Total Mixed Ration Pellets

SUN Lin1,2, XIAO Yan-zi3, FANG Yong-yu1, WU Xiao-guang4, Nana1, YIN Guo-mei1, LIU Si-bo1, XUE Yan-lin1   

  1. 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    2. College of Grassland Science and Technology,China Agricultural University,Beijing 100193,China;
    3. College of Agriculture and Forestry,Hulun Buir University,Hulun Buir 021000,China;
    4. Inner Mongolia Land Surveying and Planning Institute,Hohhot 010055,China
  • Received:2020-12-09 Online:2021-03-30 Published:2021-04-16

摘要: [目的] 筛选以天然牧草为基础的育肥肉羊日粮颗粒饲料配方。[方法] 以天然牧草为粗饲料,玉米面、豆饼和小麦麸皮为精料,食盐、添加剂预混料为饲料添加剂,参考《肉羊饲养标准》(NY/T 816—2004)设定天然干草占采食量的50%(配方1)、60%(配方2)和70%(配方3)3个比例的全混合日粮配方,制成全混合日粮颗粒。通过分析不同配方全混合日粮颗粒饲料的营养成分和体外干物质消化率(IVDMD),筛选以天然牧草为基础的育肥肉羊日粮颗粒饲料配方。[结果] 配方2和配方3的CP含量显著(P<0.05)高于配方1;配方2与配方3的NDF和ADF含量显著(P<0.05)低于配方1;配方2的IVDMD显著(P<0.05)高于配方1和配方3。[结论] 对于体重为25 kg、日增重为0.45 kg的育肥羊,天然干草占采食量60%(配方2)的全混合日粮颗粒饲料最佳。

关键词: 天然牧草, 颗粒饲料, 肉羊育肥, 配方筛选, 体外干物质消化率

Abstract: [Objective] To select the formula of native grass based total mixed ration pellets for fattening mutton sheep. [Method] Taking native grass as roughage, maize meal, soybean cake and wheat skin as concentrate, salt and premix as feed additive, and by referring to the ′Feeding Standard of Meat-producing Sheep and Goats′(NY/T 816-2004), an agricultural industry recommended standard of China, formulas of total mixed ration were designed on the basis of setting native hay accounting for 50% (formula 1), 60% (formula 2) and 70 % (formula 3) of the feed intake. Then pellets of total mixed ration were prepared. By analyzing the nutrient composition and in vitro dry matter digestibility (IVDMD) of different formulas, the optimum formula of native grass-type total mixed ration pellets for fattening mutton sheep was selected. [Result] The crude protein (CP) contents in formula 2 and formula 3 were significantly (P<0.05) higher than that in formula 1. The contents of neutral detergent fiber (NDF) and acid detergent fiber (ADF) in formula 2 and 3 were significantly (P<0.05) lower than those in formula 1,while the IVDMD in formula 2 was significantly (P<0.05) higher than that in formula 1 and 3. [Conclusion] For fattening sheep with a weight of 25 kg and a daily gain of 0.45 kg, the native grass-type total mixed ration pellets with native hay accounting for 60% of the feed intake (formula 2) is the best.

Key words: native grass, pellet feed, mutton sheep fattening, formula selection, in vitro dry matter digestibility

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