Phosphorus Metabolism in Poultry: Prevention of Eggshell Broken and Leg Weakness
| Project/Area Number |
26450374
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Animal production science
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| Research Institution | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 家禽 / 脚弱 / 破卵 / リン / カルシウム / エストロジェン / 代謝 / ニワトリ / リン代謝 / カルシウム代謝 / 産卵 / 産卵周期 / ナトリウム/リン酸共輸送体 |
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| Outline of Final Research Achievements |
A large amount of economic loss in poultry industry is produced by specific disorders such as the leg weakness and eggshell broken. The disorders are closely related with bone metabolism. Bone is composed of hydroxyapatite (phosphorus and calcium). Therefore, phosphorus metabolism also plays an important role in bone health.
In this research project, the mRNAs of sodium-dependent phosphate transporter (NaPi-II) were expressed in intestines and kidney, and the NaPi-II mRNAs were increased with the growth and maturation of female chickens. The NaPi-II mRNA expression was also stimulated by 1,25-hydroxyvitamin D3 (1,25-OH2D3) and estrogen. These results demonstrated that phosphorus metabolism during sexual maturation is regulated by the estrogen-induced 1,25-OH2D3 production.
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Report
(4 results)
Research Products
(7 results)
