| Project/Area Number |
23780269
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Zootechnical science/Grassland science
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| Research Institution | Kyoto Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 離乳 / 豚 / 消化管 / 発達 / 短鎖脂肪酸 / 免疫 / 2糖分解酵素 / パイエル板 / アミノ酸 / 腸内細菌 / 栄養 / 遺伝子 |
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| Research Abstract |
Suckling piglets are weaned forcibly at 3 or 4 weeks old in Japan. Weaning are almost considered the convenience of sows, less considered the sufficiency of nutrition or good growth of neonates, previously. Recently, some viral diseases prevail, and its infection deteriorates ferocity in pig industry. Therefore, weaning age is reconsidered to prevent the viral infection for the improvement of pig management. On the other hands, suitable weaning age of neonate is not examined yet particularly in matching the Japanese pig industry. Therefore, I determine the suitable weaning age for neonates from the points of view of nutrition, gene expression, immune and pathology. According the results, weaned at 14 days old is too early, weaned at 21 days old or more is needed to their subsequent healthy development.
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