A study on fermentation quality of Italian ryegrass and soybean straw mixed silage

doi:10.11686/cyxb20140411

Abstract

Abstract: The mixed fermentation quality of Italian ryegrass (Lolium multiflorum) and soybean (Glycine max) straw was studied through the following proportions of 10∶0 (Control),9∶1 (S₁),8∶2 (S₂),7∶3 (S₃) and 6∶4 (S₄). The silos for each mixture were opened on 42 d after ensiling and the fermentation quality was measured. The results showed that the dry matter content was increased significantly,but the NH₃-N to total nitrogen (TN) ratio and the content of volatile fatty acids were significantly decreased by adding soybean straw. The butyric acid content and NH₃-N to TN ratio were decreased markedly in the treatment of S₂ and S₃. The V-Scores were higher as compared with the control,S₂ and S₃ treatment indicated good fermentation quality. It was suggested that the 7∶3 mixed proportions of Italian ryegrass and soybean straw was best for improving fermentation quality and maximum using soybean straw.

CLC Number:

S816.5⁺3

YAN Yan-hong,LI Jun-lin,GUO Xu-sheng,YU Zhu,ZHANG Xin-quan,SUN Juan-juan,LUO Yan. A study on fermentation quality of Italian ryegrass and soybean straw mixed silage[J]. Acta Prataculturae Sinica, 2014, 23(4): 94-99.

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