Effects of various amino acid fermentation byproducts on the fermentation quality and feed characteristics of Italian ryegrass (Lolium multiflorum Lam.) silage
2008
Yamamoto, Y.(Mie-ken. Science and Technology Promotion Center, Matsusaka (Japan). Livestock Research Division) | Yimamu, A. | Yimiti, W. | Hiraoka, H. | Inui, K. | Takeda, M. | Yokoi, D. | Karita, S. | Goto, M.
We examined for a use of phenylalanine fermentation byproduct (PFB), monosodium glutamate fermentation byproduct (MSG), lysine fermentation byproduct (LFB) and inosine fermentation byproduct (IFB) as silage additive (3% v/w) for ensiling Italian ryegrass (Lolium multiflorum Lam.). Effects of desalting were also evaluated on the PFB additive. Except for the IFB additive, the three amino acid fermentation byproducts significantly improved the silage quality with promoted lactic acid fermentation and lowered acetic and butyric acids production and dry matter (DM) loss. They also significantly increased crude and true protein contents and lowered neutral detergent fiber (NDF) content in the silage. The MSG additive significantly increased in situ DM and NDF degradability in the rumen, while the undesalted PFB additive increased in situ NDF degradability. The improvement of lactic acid production in the silage was significantly related with magnesium concentration, and that of the in situ rumen degradability was significantly related with total concentration of anions, which varied among the four amino acid fermentation byproducts.
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