畜牧与饲料科学 ›› 2020, Vol. 41 ›› Issue (3): 11-15.doi: 10.12160/j.issn.1672-5190.2020.03.003

• 动物营养与饲料科学 • 上一篇    下一篇

玉米秸秆与饲料桑混合发酵饲料对肉羊生长性能的影响

鲁志平1, 郭莉2, 李建臻1, 杨定勇1, 王振华1, 黄雅杰1, 阳爱国3, 莫茜3, 程琬云1, 徐刚1   

  1. 1.成都农业科技职业学院,四川 成都 611130;
    2.四川省兽药监察所,四川 成都 610041;
    3.四川省动物疫病预防控制中心,四川 成都 610041
  • 收稿日期:2020-04-21 出版日期:2020-05-30 发布日期:2020-06-17
  • 通讯作者: 徐刚(1967—),男,教授,硕士,主要从事动物生产和疫病防控工作。
  • 作者简介:鲁志平(1982—),男,高级兽医师,硕士,主要从事动物营养研究和动物生产方面的工作。
  • 基金资助:
    成都市技术创新研发项目(2018-YF05-00690-SN)。

Effects of Fermented Mixed Feed of Corn Stalk and Forage Mulberry on Growth Performance of Mutton Sheep

LU Zhi-ping1, GUO Li2, LI Jian-zhen1, YANG Ding-yong1, WANG Zhen-hua1, HUANG Ya-jie1, YANG Ai-guo3, MO Qian3, CHENG Wan-yun1, XU Gang1   

  1. 1.Chengdu Agricultural College,Chengdu 611130,China;
    2.Sichuan Institute of Veterinary Drug Control,Chengdu 610041,China;
    3.Sichuan Animal Disease Control Center,Chengdu 610041,China
  • Received:2020-04-21 Online:2020-05-30 Published:2020-06-17

摘要: 目的将粉碎的饲料桑按15%比例与玉米秸秆共同发酵后制成混合发酵饲料,分析发酵产物的营养成分,评价饲喂混合发酵饲料对羔羊采食量、生长性能、营养物质表观消化率等指标的影响。方法选取健康的3月龄断奶肉羊100只,随机分为试验Ⅰ组、Ⅱ组、Ⅲ组、Ⅳ组和对照组,每组20只,各组试验羊初始体重差异不显著(P>0.05)。对照组饲喂基础饲粮,试验Ⅰ组、Ⅱ组、Ⅲ组、Ⅳ组在基础日粮中分别添加15%混合发酵饲料(含15%饲料桑)、15%发酵玉米秸秆、15%饲料桑、15%玉米秸秆。试验期45 d。结果混合发酵饲料与发酵玉米秸秆和饲料桑相比,DM、Ash、EE含量差异不显著(P>0.05),氨基酸总量、CP含量差异显著(P<0.05);混合发酵饲料与饲料桑相比,CF含量差异显著(P<0.05);混合发酵饲料与发酵玉米秸秆和饲料桑相比,NDF含量差异显著(P<0.05);混合发酵饲料与发酵玉米秸秆相比,ADF含量差异显著(P<0.05)。试验Ⅰ组与试验Ⅱ组、Ⅲ组、Ⅳ组及对照组相比,采食量显著增加(P<0.05);试验Ⅰ组的只均增重、平均日增重、粗饲料采食量及饲料转化率均显著高于其余各组(P<0.05);各组的DM、EE表观消化率差异不显著(P>0.05);试验Ⅰ组的NDF、ADF、Ca、P表观消化率与其余各组相比差异均显著(P<0.05)。结论由15%饲料桑与玉米秸秆制成的混合发酵饲料,营养价值较发酵玉米秸秆和饲料桑有所提高;与饲喂基础日粮相比,在基础日粮中添加15%的混合发酵饲料,可以提高肉羊的采食量和饲料转化率。

关键词: 饲料桑, 混合发酵, 肉羊, 生长性能

Abstract: [Objective] To evaluate the nutritional components of a fermented mixed feed prepared with forage mulberry powder (at a 15% ratio) and corn stalk, and to assess the effects of feeding this fermented mixed feed on intake, growth performance and apparent nutrient digestibility in lambs. [Method] A total of 100 3-month-old healthy weaned lambs were selected and were randomly divided into 5 groups, including experimental groups Ⅰ, Ⅱ, Ⅲ, Ⅳ and a control group. There were 20 lambs for each group, and there was no significant difference in initial body weights of the lambs between different groups (P>0.05). The control group was fed a basal diet, and the experimental groups Ⅰ, Ⅱ, Ⅲ and Ⅳ were fed a basal diet supplemented with 15% fermented mixed feed (containing 15% forage mulberry), 15% fermented corn stalk, 15% forage mulberry, and 15% corn stalk, respectively. The experimental period lasted for 45 days. [Result] Comparing fermented mixed feed with fermented corn stalk and forage mulberry, no significant differences in contents of DM, Ash and EE were observed (P>0.05), while significant differences in contents of total amino acids and CP were observed (P<0.05);there was significant difference in content of CF between fermented mixed feed and forage mulberry (P<0.05); comparing fermented mixed feed with fermented corn stalk and forage mulberry, significant difference in content of NDF was observed (P<0.05); there was significant difference in content of ADF between fermented mixed feed and fermented corn stalk (P<0.05). The experimental group Ⅰ had significantly increased feed intake compared to the experimental groups Ⅱ, Ⅲ, Ⅳ and the control group (P<0.05); significantly higher values of individual average weight gain, average daily gain, roughage intake and feed conversion rate were observed in the experimental group Ⅰ compared to the remaining groups (P<0.05); no intergroup difference in the apparent digestibility of DM and EE was found (P>0.05); there were significant differences in apparent digestibilities of NDF, ADF, Ca and P between the experimental group Ⅰ and the other groups (P<0.05). [Conclusion]The fermented mixed feed

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