| 玉米秸秆与饲料桑混合发酵饲料对肉羊生长性能的影响 |
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| 引用本文： | 鲁志平,郭莉,李建臻,杨定勇,王振华,黄雅杰,阳爱国,莫茜,程琬云,徐刚.玉米秸秆与饲料桑混合发酵饲料对肉羊生长性能的影响[J].畜牧与饲料科学,2020,41(3):11-15. |
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| 作者姓名： | 鲁志平 郭莉 李建臻 杨定勇 王振华 黄雅杰 阳爱国 莫茜 程琬云 徐刚 |
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| 作者单位： | 成都农业科技职业学院,四川 成都 611130;四川省兽药监察所,四川 成都 610041;四川省动物疫病预防控制中心,四川 成都 610041 |
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| 基金项目： | 成都市技术创新研发项目（2018-YF05-00690-SN）。 |
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| 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。
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| 关 键 词： | 饲料桑 混合发酵 肉羊 生长性能 |
| 收稿时间： | 2020-04-21 |
Effects of Fermented Mixed Feed of Corn Stalk and Forage Mulberry on Growth Performance of Mutton Sheep |
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| LU Zhi-ping,GUO Li,LI Jian-zhen,YANG Ding-yong,WANG Zhen-hua,HUANG Ya-jie,YANG Ai-guo,MO Qian,CHENG Wan-yun,XU Gang.Effects of Fermented Mixed Feed of Corn Stalk and Forage Mulberry on Growth Performance of Mutton Sheep[J].Animal Husbandry and Feed Science,2020,41(3):11-15. |
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| Authors: | LU Zhi-ping GUO Li LI Jian-zhen YANG Ding-yong WANG Zhen-hua HUANG Ya-jie YANG Ai-guo MO Qian CHENG Wan-yun XU Gang |
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| Institution: | 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 |
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| 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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| Keywords: | forage mulberry mixed fermentation sheep growth performance |
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