Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (10): 3297-3304.DOI: 10.11733/j.issn.1007-0435.2024.10.031

Previous Articles    

Fermentation Quality and In Vitro Rumen Gas Production of Corn Straw Wheat Straw Mixed with Whole Conformation Tree

SUN Ying-chao1, CHAI Yu-xin1, HOU Guo-qing2, CHEN Yong-cheng1, ZHENG Xiao-kai1, YANG Jian-qi1,3, ZHANG Fan-fan1   

  1. 1. College of Animal Science & Technology, Shihezi University, Shihezi, Xinjiang 833000, China;
    2. Xinjiang Production and Construction Corps Seventh Division Institute of Agricultural Sciences, Kuiton, Xinjiang 833200, China;
    3. College of Animal Science & Technology, Sichuan Agricultural University, Chengdu, Sichuan Province 610000, China
  • Received:2024-04-03 Revised:2024-05-16 Published:2024-11-04

2种秸秆与全株构树混贮发酵品质及瘤胃体外产气特性

孙颖超1, 柴雨昕1, 侯国庆2, 陈永成1, 郑晓凯1, 杨鉴琦1,3, 张凡凡1   

  1. 1. 石河子大学动物科技学院, 新疆 石河子 833000;
    2. 新疆生产建设兵团第七师农业科学研究所, 新疆 奎屯 833200;
    3. 四川农业大学动物科技学院, 四川 成都 610000
  • 通讯作者: 张凡凡,E-mail:zhangfanfan@shzu.edu.cn
  • 作者简介:孙颖超(1999-)，男，汉族，河南驻马店人，硕士研究生，主要从事饲草生产与加工研究，E-mail：321470946@qq.com
  • 基金资助:
    南疆重点产业创新发展支撑计划项目(2022DB017);财政部和农业农村部-国家牧草体系项目(CARS-34)资助

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Abstract: The purpose of this study was to explore the fermentation characteristics of dominant straw and whole-plant Broussonetia papyrifera in Xinjiang province,and to provide a theoretical basis for improving the utilization efficiency of straw resources and the fermentation quality of B. papyrifera. A total of 7 treatments were set up in the experiment,and each treatment had 7 replicates,including CK group (whole-plant B. papyrifera silage),C1 group (90% whole-plant B. papyrifera and 10% corn straw),C2 group (70% whole-plant B. papyrifera and 30% corn straw),C3group (50% whole-plant B. papyrifera and 50% corn straw),W1 group (90% whole-plant B. papyrifera and 10% wheat straw),W2 group (70% whole-plant B. papyrifera and 30% wheat straw),W3 group (50% whole-plant B. papyrifera and 50% wheat straw). After 90 days of fermentation,the nutritive value,fermentation quality,microbial number and in vitro gas production of rumen were measured. The results showed as follows：1) compared with CK group,the dry matter loss rate,pH value,ammonia nitrogen content and mold number of mixed silage fermentation system decreased significantly (P<0.05) with the increase of the addition ratio of the two straws. The number of lactic acid bacteria and lactic acid content significantly increased ( P<0.05). 2) The organic matter digestibility and metabolic energy of mixed silage of whole plant Broussonetia papyrifera and straw were significantly lower than those of CK group (P<0.05).The mixed silage (1∶1) of whole-plant B. papyrifera with corn straw and wheat straw could significantly improve the fermentation quality of silage.

Key words: Corn straw, Wheat straw, Whole-plant Broussonetia papyrifera, Fermentation quality, In vitro rumen gas production

摘要： 本研究旨在探索新疆地区主要作物秸秆与全株构树(Broussonetia papyrifera L.)的混合青贮发酵特性，为提高秸秆资源利用效率、改善构树发酵品质提供理论依据。试验共设7个处理，分别为CK组(100%全株构树青贮)，C1组[90%全株构树+10%玉米(Zea mays L.)秸秆],C2组(70%全株构树+30%玉米秸秆),C3组(50%全株构树+50%玉米秸秆)，W1组[90%全株构树+10%小麦(Triticum aestivum L.)秸秆]，W2组(70%全株构树+30%小麦秸秆)，W3组(50%全株构树+50%小麦秸秆)。测定自然发酵90天发酵前后各处理组的营养成分、发酵品质、微生物数量，并进行瘤胃体外产气试验。结果表明：与CK组相比，混合发酵中的粗蛋白含量、pH值、氨态氮含量和霉菌数量均显著降低(P＜0.05)，乳酸菌数量、乳酸含量均显著升高(P＜0.05)；混合青贮的有机物消化率、代谢能均显著低于CK组(P＜0.05)。综上，全株构树与玉米、小麦秸秆混合青贮(1∶1)可显著改善青贮发酵品质。

关键词: 玉米秸秆, 小麦秸秆, 全株构树, 发酵品质, 瘤胃体外产气

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