添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响

doi:10.11686/cyxb20130315

草业学报 ›› 2013, Vol. 22 ›› Issue (3): 116-.DOI: 10.11686/cyxb20130315

添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响

原现军^1,2,王奇¹,李志华¹,余成群³,下条雅敬⁴,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.上海市农业科学院畜牧兽医研究所,上海 201106;
3.中国科学院地理科学与资源研究所,北京 100101;
4.九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

出版日期:2013-06-20 发布日期:2013-06-20
通讯作者: E-mail:taoshaolan@163.com
作者简介: hnyxj0702@163.com
基金资助:
国家科技支撑计划(2010BAE00739－03)和西藏自治区重大科技专项(XZ20093ZD)资助。

Effect of molasses addition on fermentation and nutritive quality of mixed
silage of hulless barley straw and perennial ryegrass in Tibet

YUAN Xian-jun^1,2, WANG qi¹, LI Zhi-hua¹, YU Cheng-qun³, Masataka Shimojo⁴, SHAO Tao¹

Effect of molasses addition on fermentation and nutritive quality of mixed
silage of hulless barley straw and perennial ryegrass in Tibet
YUAN Xian-jun^1,2, WANG qi¹, LI Zhi-hua¹, YU Cheng-qun³, Masataka Shimojo⁴, 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 Animal Husbandry and Veterinary
Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; 3.Institute
of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,
Beijing 100101, China; 4.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)

Online:2013-06-20 Published:2013-06-20

摘要/Abstract

摘要： 试验在青稞秸秆与多年生黑麦草以6∶4混合的基础上,添加3%,4%和5%的糖蜜,旨在进一步改善混合青贮发酵品质和营养价值,为西藏地区青稞秸秆青贮利用提供理论依据。结果显示,青贮前14天,糖蜜添加组乳酸含量快速增加,pH值迅速下降。对照组pH值未能降至4.2以下,而糖蜜添加组均在4.0左右,乳酸、水溶性碳水化合物含量和乳酸/乙酸显著高于(P<0.05)对照组,氨态氮/总氮均低于对照组,且添加3%糖蜜已达到优质青贮饲料标准。青贮第60天糖蜜添加组有较高的粗蛋白含量,较低的中性洗涤纤维和酸性洗涤纤维含量,各组体外降解率均高于青贮材料。综合考虑,在青稞秸秆和黑麦草以6∶4混合的基础上添加3%的糖蜜可获得优质青贮饲料。

Abstract: To investigate enlargement of feed sources in Tibet, mixtures of hulless barley straw and perennial ryegrass (6∶4) were ensiled with molasses at four levels (0, 3%, 4%, and 5% of fresh weight). Triplicate silos per treatment were opend on 7, 14, 30, and 60 days after ensiling and the fermentation characteristics and in vitro degradability of silages were analysed. Molasses addition quickly and greatly enhancedLA (lactic acid) production but decreased the pH value within 14 days of ensiling. Molasses supplemented silages showed higher (P<0.05) LA/AA (acetic acid), LA and WSC (water soluble carbohydrate) contents but lower pH values and AN (ammonia nitrogen)/TN (total nitrogen) (P<0.05) than the control silage. After 60 days ensiling, silages with added molasses had higher CP (crude protein), lower NDF (neutral detergent fiber) and ADF (acid detergent fiber) contents than the control, and the in vitro degradability of all silages were higher than that of fresh material. These results indicate that 3% molasses addition can effectively improve the fermentation and nutitive quality of mixed silages.

中图分类号:

S816.53 文献标识码:A 文章编号:1004-5759(2013)03-0116-08
〖

原现军,王奇,李志华,余成群,下条雅敬,邵涛. 添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响[J]. 草业学报, 2013, 22(3): 116-.

YUAN Xian-jun, WANG qi, LI Zhi-hua, YU Cheng-qun, Masataka Shimojo, SHAO Tao. Effect of molasses addition on fermentation and nutritive quality of mixed
silage of hulless barley straw and perennial ryegrass in Tibet[J]. Acta Prataculturae Sinica, 2013, 22(3): 116-.

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添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响

Effect of molasses addition on fermentation and nutritive quality of mixed
silage of hulless barley straw and perennial ryegrass in Tibet

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添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响

Effect of molasses addition on fermentation and nutritive quality of mixed silage of hulless barley straw and perennial ryegrass in Tibet

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