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

doi:10.11686/cyxb20130315

Acta Prataculturae Sinica ›› 2013, Vol. 22 ›› Issue (3): 116-.DOI: 10.11686/cyxb20130315

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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

Abstract

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.

CLC Number:

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

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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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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