• 川西北高寒牧區老芒麥和燕麥裹包青貯品質的研究
    中國測試夏白雪1, 金 燕1, 金玉蘭1, 趙長菘1, 李達旭2, 劉 剛2, 孫 群1
    摘  要:通過對青貯飼草微生物數量動態變化及營養價值的檢測,旨在探明“核心料”對青貯品質的作用及確定飼草的青貯原料。選擇四川省阿壩藏族羌族自治州紅原縣瓦切草場的青貯飼草作為實驗原料。實驗設計分為青貯老芒麥、添加“核心料”的青貯老芒麥、青貯燕麥3個組。在所有采樣時間點,研究青貯飼草的乳酸菌、酵母菌、霉菌數量的3項微生物指標,在青貯起止兩個時間點測定pH值、水分、粗蛋白、氨態氮、酸性洗滌纖維、中性洗滌纖維、乳酸含量7項理化指標。研究表明:在青貯過程中,添加“核心料”及采用燕麥為原料能有效降低飼草pH值,抑制青貯過程腐敗微生物生長,穩定飼草中蛋白質含量,降低纖維素含量,從而提高青貯營養價值,改善青貯品質。
    關鍵詞:老芒麥;燕麥;核心料;青貯
    文獻標志碼:A       文章編號:1674-5124(2015)12-0049-05
    Fermentations of Elymus sibiricus Linn and Avena sativa Linn Silage with wrapped
    bales in the alpine pastoral areas of northwestern Sichuan
    XIA Baixue1, JIN Yan1, JIN Yulan1, ZHAO Changsong1, LI Daxu2, LIU Gang2, SUN Qun1
    (1. Key Laboratory of Microbiological Resource and Technology,College of Life Sciences,
    Sichuan University,Chengdu 610064,China;
    2. Sichuan Academy of Grass land Science,Chengdu, 611731,China)
    Abstract: The purpose of this experiment was to study the effects of "core materials" on fermentation quality and determine the silage materials of forage through microbial dynamics and nutritional value detection. The forage produced in the Waqie meadow in Tibetan Qiang Autonomous Prefecture of Aba, Sichuan was used as experimental materials. These were divided into three groups, Elymus sibiricus Linn silage, Elymus sibiricus Linn silage with core materials, and Avena sativa Linn silage. Three microbial indicators of lactic acid bacteria, yeast and mold were studied at each sampling time point. At the two starting time points of ensiling, seven physical and chemical characteristics were determined, including pH, moisture, crude protein, Ammonia-N, acid detergent fiber, neutral detergent fiber and lactic acid. The test results show that the core materials added and the choice of Avena sativa Linn can largely decrease the pH value of the forage, inhibit the growth of spoilage microorganism at the stages of ensiling, and improve the nutritional value and silage quality by stabilizing the content of protein and cellulose.
    Keywords: Elymus sibiricus Linn; Avena sativa Linn; core material; silage
     
     
    網站首頁  |  關于我們  |  聯系我們  |  廣告服務  |  版權隱私  |  友情鏈接  |  站點導航
     
    在线精品国精品国产尤物| 久久久久久久99精品国产片| 精品天海翼一区二区| 国产成人精品午夜在线播放| 精品一区二区三区无码免费直播| 人妻少妇精品视频一区二区三区| 最新69堂国产成人精品视频| 国产精品亚洲一区二区麻豆| 香蕉久久夜色精品国产| 六月婷婷精品视频在线观看| 中文字幕精品亚洲无线码二区| 久久99精品一久久久久久| 国产精品久久婷婷六月丁香| 国产麻豆一精品一AV一免费| 国产精品久久成人影院| 国产精品亚洲va在线观看| 在线亚洲精品自拍| 国产精品自在线拍国产手青青机版| laowang在线精品视频| 久久国产精品99精品国产987| 亚洲国产精品无码久久久| 国产精品视频福利| 久久久久国产精品人妻| 国产精品成人观看视频| 久久国产加勒比精品无码| 国产AV国片精品一区二区| 国产成人久久精品77777综合| 97r久久精品国产99国产精| 国产剧情精品在线观看| 自拍偷在线精品自拍偷99| 538精品在线观看| 国产精品丝袜一区二区三区 | 中文精品无码中文字幕无码专区| 国产精品无码MV在线观看| 91精品成人福利在线播放| 国产99视频精品免费视频76| 国产精品资源一区二区| 精品久久久久久无码人妻中文字幕 | 91精品国产色综久久| 久久综合精品不卡一区二区| 国产精品无码翘臀在线观看|