An actual study on the preservation technologies of unhulled rice by field drying method in Okuetsu area in Fukui
2018
Ikeda, N. | Sasaki, K.
The object of this study was to investigate the potential of the preservation technology which combined field drying method, that rice was dried in field for a while, and addition of lactic acid bacteria, by examining preservability of rice preserved outside for long time and influence on productivity and fertility by feeding this rice. There were five test groups differed by variety of rice and moisture content; 1. Hokuriku 193 (moisture 20.7%), 2. Yumeaoba (17.5%), 3. Hanaechizen A (16.7%), 4. Hanaechizen B (17.5%), 5. Koshihikari (15.8%). The rice of each group was filled in flexible container bag with plastic bag inside, preserving outside for 13 months. General component, fermentation quality and influence of mold were examined. This rice was fed instead of concentrate feed, and the effects of this rice on the quantity and quality of milk, and fertility were examined. As the results, any change in general component and decomposition could not be seen whereas fermentation could be seen in the group 1 and 2 in summer. The group 4, which fermentation could be seen, and the group 2, which could not, showed the equal moisture content before preservation, and the moisture contents of rice in the upper part of bag of the group 2 and 4 became higher during preservation; 26.5% and 22.5% respectively. The group 2 showed larger difference in moisture content of rice within the bag before preservation than 4, and this might affect the moisture content of rice during the preservation. Any mycotoxin was not detected although mold could be found in the upper part of the bag of all groups except 5. There was no influence on the quantity and quality of milk, and fertility.
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