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タイトル: 発芽玄米サイレージの反芻家畜における消化に及ぼす影響
その他のタイトル: Effects of feeding sprouted brown rice silage on digestibility for ruminants
著者: 安倍, 逸太朗
発行日: 2017
抄録: Chapter1. Rice production as feed is increasing as part of improving feed self-sufficiency rate in Japan. It has being considered as an alternative crop to the corn which was a useful energy source in ruminant animals. When untreated rice is fed. It is excreted undigested in feces, so various processing methods were researched. Then I examined a new processing method for rice, and focused attention on sprouted brown rice. I thought that sprouting damage on the hulls of brown rice was useful for digesting an albumen by animals. In the previous study, we researched the rumen degradability rate of using cattle by in situ method and found sprouted brown rice had higher ruminal degradability rate than brown rice. In addition, sprouted brown rice contains high gamma amino butyric acid (GABA). GABA is said to be effective in antihypertensive action and stress relief. However, sprouted brown rice has high moisture content and it may rot when left there. Therefore, I suggest that silage making from sprouted brown rice would be a possible option for year round supply at feed. I aimed to determine the digestibility of sprouted brown rice silage (SBRS) in ruminant livestock and changes in blood GABA concentration. Capter2. In vitro experiment was done using SBRS and rumen fluid (from cows). SBRS is incubated at 4h, 8h, 12h, and 24h, and organic matter digestibility was calculated each incubation time. As result, organic matter digestibility of SBRS was 43.8% at 24h. This result is higher rumen degradability rate of sprouted brown rice than in previous study. Capter3. The sheep at different age were SBRS and brown rice in the experiment. Digestibility was determined fed by whole fecal sampling method in a crossover design. In addition, at the end of each test period, blood samples were gathered from each sheep and blood GABA concentration was analyzed. The digestibility of SBRS was numerically higher than brown rice, but there was no significant difference. Similarly the fecal excretion was numerically lower in SBRS than in brown rice, but there was no significant difference. These effects were caused by wide variation among the different age sheep which might be due deterrence in chewing time and ability.
記述: 畜産生命科学専攻
Master’s Course of Agro-Environmental Science
平成28年度修士学位論文
URI: http://ir.obihiro.ac.jp/dspace/handle/10322/4411
権利情報: 安倍逸太朗
出現コレクション:03010学位論文(修士)

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