食中のアスタキサンチンの腸内微生物群および代謝産物,抗酸化能力,およびマクロブラキウム・ローゼンベルギーのデカポッド虹彩ウイルス1に対する耐性への影響
Cui Liu1, Qiusheng Jing2, Li Wang1
1Xianghu Laboratory, Hangzhou, Zhejiang 311231, China.
Fish & shellfish immunology
|September 4, 2025
まとめ
食中のアスタキサンチンは,デカポッド・アイリスセントウイルス1 (DIV1) に対するエビの免疫と耐性を高めます. 栄養補給により腸の健康と抗酸化能力が改善され,最適な効果を得るには500 mg/kgが推奨されています.
科学分野:
- 水産養殖 栄養
- 脊椎動物免疫学
- 微生物群の研究
背景:
- 病原性の微生物は カニの養殖の持続可能性を脅かしています
- 栄養戦略は水生動物の病原性強化の鍵です
研究 の 目的:
- マクロブラキウム・ローゼンベルギーの成長,腸の健康,免疫,DIV1耐性に対する食事によるアスタキサンチンの影響を評価する.
- アスタキサンチンの最適な投与量を決定する
主な方法:
- アスタキサンチン濃度が変化するダイエット (100,500,1000 mg/kg) を8週間食べた.
- 評価された成長,腸内微生物群,抗酸化能力,免疫遺伝子発現,およびDIV1の挑戦反応.
主要な成果:
- アスタキサンチンは腸と肝臓で増加し,ラクトコッカス・ガーヴィエエは減少し,5 - ハイドロキシ- L- トリプトファンは増加した.
- アスタキサンチン500 mg/ kgはDIV1テスト後の生存率を大幅に改善しました.
- 抗酸化指数 (SOD,CAT) の向上,酸化ストレス (MDA) の減少,免疫遺伝子発現の強化 (Toll,MyD88,IRF4)
結論:
- 食中のアスタキサンチンは 腸内微生物群,抗酸化能力,免疫反応を改善します
- アスタキサンチンは,DIV1防御のためのMyD88依存のトール信号経路を強化します.
- マクロブラキウム・ローゼンベルギーの健康効果を最大化するために,500 mg/kgのアスタキサントンが推奨されます.
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