A study on the corn stover silage of different levels of rice bran and urea additions

Lee, S.B.; Jung, K.K.; Bae, D.H.; Chung, Y.H.

Korean Journal of Animal Science 33(2): 138-143

1991


Accession: 006970579

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Abstract
This study was carried out to improve the quality and nutritive value of corn stover. Moisture content of corn stover was 30%. Seven different corn stover silages added with rice bran (0, 5, 10, 15, 20, 25 and 30%) and 2% urea (DM basis) were made and moisture content of corn stover silage was 65%. After 40 days, corn stover silage added with rice bran were analyzed chemical composition, in vitro dry matter digestibility (IVDMD) and volatile fatty acid (VFA). The results obtained are as follows: 1. When the rice bran levels were increased, crude protein and crude fat contents were increased (r = .94**, .98**), ADF and CWC content decreased (r = -.88**, -.88**). 2. When the rice bran levels were increased in 0, 5, 10, 15, 20, 25 and 30%, lactic acids increased in 056a, 0.62a, 1.81b, 2.04b, 2.48bc, 3.29d%, but rice bran levels in 25 and 30% were not significant. 3. Above 5% rice bran level, NH3-N and IVDMD were not significant. 4. When the rice bran levels were increased, propionic acids were significantly increased (p < .01) but butyric acid significantly decreased (p < .01). 5. Corn stover silage above 25% rice bran level result in better quality silage.