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Effects of adding a monosodium glutamate fermented by‐product on the fermentation quality of whole crop rice ( Oryza sativa L.) silage, digestibility and ruminal fermentation in beef cattle
Author(s) -
Fang Jiachen,
Matsuzaki Masatoshi,
Suzuki Hiroyuki,
Wusiman Yimiti,
Goto Masakazu,
Horiguchi Kenichi,
Takahashi Toshiyoshi
Publication year - 2011
Publication title -
grassland science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 19
eISSN - 1744-697X
pISSN - 1744-6961
DOI - 10.1111/j.1744-697x.2011.00215.x
Subject(s) - fermentation , silage , latin square , neutral detergent fiber , chemistry , food science , dry matter , oryza sativa , lactic acid , agronomy , butyric acid , rumen , zoology , biology , biochemistry , bacteria , genetics , gene
The objective of this study was to determine the fermentation quality and nutritive value of whole crop rice silage (WCRS) treated with a monosodium glutamate fermented by‐product (MGB), and its effects on the digestion of WCRS using four Japanese Black cows. The whole crop rice was chopped into 3–5 cm lengths after being harvested at the yellow‐ripeness stage and ensiled for 30 days after being treated with 0 (CMG), 2.5 (LMG), 5 (MMG) and 10% (HMG) levels of MGB. Samples of whole crop rice and that of WCRS were collected and analyzed for fermentation characteristics. This was followed by a nutrient digestion study using four Japanese Black cows in a 4 × 4 Latin square design. The MGB treatment improved ( P < 0.05) lactic acid production compared to the CMG treatment, but was not affected by the MGB level. Butyric acid production was reduced ( P < 0.05) with MMG and HMG treatments of WCRS. The crude protein (CP) content of WCRS increased, whereas neutral detergent fiber (NDF) content decreased with MGB treatment and these changes were affected by the MGB level. The nitrogen content in MGB improved ( P < 0.05) CP intake of WCRS, but did not ( P > 0.05) affect N retention. The digestibility of acid detergent fiber (ADF) and NDF increased with MGB treatment, and the degree was also affected by the level of MGB. The ruminal ammonia‐N at 4 h after feeding was higher in MGB treatments than in the CMG treatment. This study demonstrated that although improvement on fermentation quality and digestibility of MGB treatment were not notable; however, MGB‐treated WCRS have beneficial effects if fed for a sufficiently long term.