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This research aims to understand how ensiling treatment and the source of rice bran affect nutrient composition and fermentation in TMR.

June 1, 2026Animal Science JournalOpen Access

In Vitro Ruminal Fermentation and Methane Production of Fresh and Ensiled TMR Containing Rice Bran Produced in Japan and Indonesia

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Randomized trial investigates nutrient effects of TMR made with rice bran from two production sites, indicating varying rumen fermentation.

This research aims to understand how ensiling treatment and the source of rice bran affect nutrient composition and fermentation in TMR.
Prepared fresh TMR with Japanese and Indonesian rice bran, both 23% dry matter.
Measured nutrient composition and in vitro rumen fermentation parameters.
Compared fresh and ensiled TMR for gas and methane production.
Indonesian rice bran resulted in higher nonfiber carbohydrates and starch but lower ether extract compared to Japanese rice bran (p < 0.05).
Fresh TMR with Indonesian rice bran showed greater total gas and methane production, volatile fatty acid concentration, and dry matter degradability (p < 0.05).
Ensiling reduced total gas production (p < 0.01) but did not significantly affect methane production.

Hisadomi et al. (2026) studied this question.

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Randomized trial investigates nutrient effects of TMR made with rice bran from two production sites, indicating varying rumen fermentation.