西藏青稞秸秆与多年生黑麦草混合青贮发酵品质的研究

草业学报 ›› 2012, Vol. 21 ›› Issue (4): 325-330.

• 研究简报 • 上一篇

西藏青稞秸秆与多年生黑麦草混合青贮发酵品质的研究

原现军¹,余成群²,李志华¹,下条雅敬³,邵涛^1*

1.南京农业大学动物科学技术学院饲草调制加工与贮藏研究所,江苏南京 210095;
2.中国科学院地理科学与资源研究所,北京100101;
3.九州大学生物资源与环境学部动物饲料生产与利用研究室,日本福冈 812-8581

收稿日期:2011-06-07 出版日期:2012-04-25 发布日期:2012-08-20
通讯作者: E-mail:taoshaolan@yahoo.com.cn
作者简介:原现军(1983-),男,河南林州人,在读博士。E-mail:hnyxj0702@163.com
基金资助:
国家科技支撑计划藏北退化草地综合整治技术与示范(2010BAE00739-03)和西藏主要农作物秸秆与栽培牧草混合青贮关键技术研究(XZ20093ZD)资助。

A study on fermentation quality of mixed silages of hulless barley straw and perennial ryegrass in Tibet

YUAN Xian-jun¹, YU Cheng-qun², LI Zhi-hua¹, Masataka Shimojo³, SHAO Tao¹

1.Institute of Ensiling and Processing of Grass, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
2.Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
3.Laboratory of Animal Feed Science, Division of Animal Science, Department of Animal and Marine Bio-resource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan

Received:2011-06-07 Online:2012-04-25 Published:2012-08-20

摘要/Abstract

摘要： 本研究旨在将青稞秸秆与黑麦草以不同比例混合青贮,评价其发酵品质,筛选出适宜的混合比例。试验设青稞秸秆单独青贮(对照组)、80%青稞秸秆+20%多年生黑麦草混贮(L组)、60%青稞秸秆+40%多年生黑麦草混贮(M组)及40%青稞秸秆+60%多年生黑麦草混贮(H组)4个处理。青贮后第7,14和30天后打开青贮窖,测定青贮饲料发酵品质。结果表明,青稞秸秆与黑麦草混合青贮显著(P<0.05)提高了乳酸和水溶性碳水化合物含量,显著(P<0.05)降低了pH值和干物质含量,M和H组在乳酸产生的同时乙酸含量显著(P<0.05)提高,混贮组氨态氮/总氮略低于对照组(P>0.05),各组均显示较低的丙酸和丁酸含量。从秸秆利用最大化的角度出发,建议以40%黑麦草混合青贮较为适宜。

Abstract: The fermentation quality of mixed silages of hulless barley (Hordeum vulgare) straw and perennial ryegrass (Lolium perenne) was studied using the following treatments: control (100% hulless barley straw), L (80% hulless barley straw+20% perennial ryegrass), M (60% hulless barley straw+40% perennial ryegrass) and H (40% hulless barley straw+60% perennial ryegrass). The laboratory silos were opened on 7, 14 and 30 days after ensiling in triplicate and the fermentation quality was measured. The mixed silages significantly (P<0.05) increased lactic acid and water soluble carbohydrate contents, while significantly (P<0.05) reducing pH value and dry matter content. Acetic acid content was significantly (P<0.05) increased with an increase of perennial ryegrass in mixed silages. The ammonia/total nitrogen of mixed silages was lower (P>0.05) than that of the control. There was little butyric or propionic acids in all silages. Based on these results, mixed silage of 40% perennial ryegrass was best for improving the fermentation quality of hulless barley straw.

中图分类号:

S816.6

原现军,余成群,李志华,下条雅敬,邵涛. 西藏青稞秸秆与多年生黑麦草混合青贮发酵品质的研究[J]. 草业学报, 2012, 21(4): 325-330.

YUAN Xian-jun, YU Cheng-qun, LI Zhi-hua, Masataka Shimojo, SHAO Tao. A study on fermentation quality of mixed silages of hulless barley straw and perennial ryegrass in Tibet[J]. Acta Prataculturae Sinica, 2012, 21(4): 325-330.

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西藏青稞秸秆与多年生黑麦草混合青贮发酵品质的研究

A study on fermentation quality of mixed silages of hulless barley straw and perennial ryegrass in Tibet

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