| Project/Area Number |
23380043
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MAEDA Teruo 広島大学, 大学院・生物圏科学研究科, 教授 (50144895)
OBITSU Taketo 広島大学, 大学院・生物圏科学研究科, 准教授 (30194632)
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| Project Period (FY) |
2011-11-18 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Keywords | フィチン酸 / ダイズ / 鶏糞 / リン酸 / リン酸資源 / 環境適応性 / 環境汚染防止 / リン酸資源の有効利用 / 環境 / 飼料原料 / 土壌肥料 / 環境汚染 / 資源の有効利用 / 家畜 / 低フィチン / 生産性 |
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| Research Abstract |
Phytic acid (myo-inositol hexakis dihydrogen phosphate; IP6; Phytate) is the main storage form of phosphorus (P) in cereals, which used for feedstuffs to livestock. However, P form IP6 is not available to non-ruminant animals such as pigs and poultries as they lack effective endogenous enzymes for the hydrolysis of IP6. As a result of the poor bioavailability of P, non-ruminant animals excrete a major fraction of seed P they consume and the resulting animal waste P can contribute to water pollution. And, to make up for the deficiency of P, inorganic-P derived from finite phosphate rock reserves is added to feedstuffs. In order to solve the problems associated with phytate, in this study, low-phytate soybean genotypes which reduced the amount of phytate and increase available P in the seed was breeding. The low-phytate soybean was investigated whether effective to reduce P excretion by non-ruminant animals for establishing a technique of leading to savings of phosphate resources.
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