苇状羊茅和箭筈豌豆混合青贮发酵品质的研究

doi:10.11733/j.issn.1007-0435.2012.05.025

草地学报 ›› 2012, Vol. 20 ›› Issue (5): 952-956.DOI: 10.11733/j.issn.1007-0435.2012.05.025

苇状羊茅和箭筈豌豆混合青贮发酵品质的研究

王奇¹, 余成群², 辛鹏程¹, 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:2012-03-22 修回日期:2012-06-19 出版日期:2012-10-15 发布日期:2012-11-01
通讯作者: 邵涛,E-mail:taoshaolan@yahoo.com.cn
作者简介:王奇(1989-),男,山东成武人,硕士研究生,研究方向为反刍动物营养,E-mail:wang_qi57@126.com
基金资助:
"十二五"国家科技支撑计划 "藏北退化草地综合整治技术与示范"(2010BAE00739-03-03-02);"十二五"西藏重大科技专项"优质青贮饲料生产、加工和贮藏技术研究与示范"资助

The Fermentation Quality of Mixed Silages of Tall Fescue (Festuca arundinacea Schreb.) and Common Vetch (Vicia sativa L.)

WANG Qi¹, YU Cheng-qun², XIN Peng-cheng¹, LI Zhi-hua¹, SHIMOJO Masataka³, SHAO Tao¹

1. Institute of Ensiling and Processing of Grass, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province 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 Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan

Received:2012-03-22 Revised:2012-06-19 Online:2012-10-15 Published:2012-11-01

摘要/Abstract

摘要： 为探讨西藏地区苇状羊茅(Festuca arundinacea Schreb.)与箭筈豌豆(Vicia sativa L.)不同比例混合青贮对其发酵品质的影响,筛选出适宜的混合配比。试验设苇状羊茅(CK)、85%苇状羊茅+15%箭筈豌豆(C15)、70%苇状羊茅+30%箭筈豌豆(C30)及55%苇状羊茅+45%箭筈豌豆(C45)4个处理。青贮后第7,24,45和60 d开窖取样,测定青贮饲料发酵品质。结果表明:随着箭筈豌豆比例的增加,各处理组乳酸和水溶性碳水化合物含量显著下降(P<0.05),pH和氨态氮含量显著上升(P<0.05)。在青贮后期,C45组pH(4.72)和氨态氮/总氮(96.19 g·kg^-1)显著高于其他各组(P<0.05),干物质、乳酸和水溶性碳水化合物含量显著低于其他各处理组(P<0.05),而粗蛋白含量与C30组无显著差异。在整个发酵过程中,各组的丙酸和丁酸含量较低。从发酵品质和箭筈豌豆利用率的角度出发,建议以70%苇状羊茅与30%箭筈豌豆混合青贮较为适宜。

关键词: 苇状羊茅, 箭筈豌豆, 混合青贮, 发酵品质

Abstract: This study was carried out to evaluate fermentation quality of mixed silages of tall fescue and common vetch. The treatments were as follows: CK (100% tall fescue), 85%tall fescue+15%common vetch (C15), 70%tall fescue+30%common vetch (C30) and 55%tall fescue+45%common vetch (C45). The laboratory silos were opened on 7, 24, 45 and 60 days after ensiling in triplicate and the fermentation quality was analyzed. Based on the results, the contents of the lactic acid and water soluble carbohydrate decreased and the values of pH and NH₃-N/TN increased significantly with increasing rate of common vetch in mixed silages (P<0.05). At the end of ensiling, the values of pH (4.72) and NH₃-N/TN (96.19 g穔g^-1 TN) of C45 were higher significantly than other treatments (P<0.05), the contents of the dry matter, lactic acid and the water soluble carbohydrate were lower significantly than other treatments (P<0.05), and the crude protein was not significant difference as compared with C30. However, all treatments showed little amounts of butyric acid and propionic acid during ensiling. In conclusion from the present study, that mixing 70% tall fescue and 30% common vetch are recommended for fermentation quality and utilization efficacy.

Key words: Tall fescue, Common vetch, Mixed ensilage, Fermentation quality

王奇, 余成群, 辛鹏程, 李志华, 下条雅敬, 邵涛. 苇状羊茅和箭筈豌豆混合青贮发酵品质的研究[J]. 草地学报, 2012, 20(5): 952-956.

WANG Qi, YU Cheng-qun, XIN Peng-cheng, LI Zhi-hua, SHIMOJO Masataka, SHAO Tao. The Fermentation Quality of Mixed Silages of Tall Fescue (Festuca arundinacea Schreb.) and Common Vetch (Vicia sativa L.)[J]. Acta Agrestia Sinica, 2012, 20(5): 952-956.

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苇状羊茅和箭筈豌豆混合青贮发酵品质的研究

The Fermentation Quality of Mixed Silages of Tall Fescue (Festuca arundinacea Schreb.) and Common Vetch (Vicia sativa L.)

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