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ヤギ由来 Lactobacillus amylovorus 腸内微生物を調節することでフラッピー・キッド症候群の改善
Cheng Cheng1,2, Yan Zheng1, Xin Wang1
1College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, China.
BMC veterinary research
|August 20, 2025
まとめ
新しいヤギ由来プロバイオティクスのラクトバチルス・アミロヴォルスは,フロッピー・キッド症候群 (FKS) のヤギの腸内健康を効果的に回復しました. この有望な介入により 腸内微生物の多様性が改善され 有害な細菌が減少し FKSに対する新しい治療法が提供されました
科学分野:
- 獣医学微生物学
- 動物性プロバイオティクス
- ヤギ の 健康
背景:
- フロッピー・キッドン症候群 (FKS) は,代謝問題と腸内不活性症により,山羊の飼育において著しい死亡率を引き起こします.
- FKSに関連する損失を減らすために効果的な介入の開発が不可欠です.
研究 の 目的:
- 羊のプロバイオティクスを分離するために
- FKSに罹患したヤギの腸内ホメオスタシスの回復における有効性を評価する.
主な方法:
- 16S rRNA配列を用い,ラクトバチルス・アミロヴォルスの分離と確認.
- 低pH,胆塩,熱に対するプロバイオティクスの耐性の評価
- E. coli や S. aureus などの病原体に対する抗菌性の評価
- プロバイオティクスの投与後のFKSに感染したヤギの腸内微生物の変化の分析
主要な成果:
- L. amylovorusの単離物は,酸性条件,胆塩,熱に対する有意な耐性を示した.
- 常見のヤギの病原体であるEscherichia coliとStaphylococcus aureusに対する抑制効果を示した.
- FKSに罹患したヤギのプロバイオティクスの投与により,腸内微生物の多様性が著しく増加した (シャノンとシンプソン指数).
- 有益な属 (Lactobacillus, Ruminococcus) の相対的な豊富さは増加し,病原性のエシェリキアシゲッラ (EscherichiaShigella) は減少した.
結論:
- ヤギ由来のL. amylovorusは,病原体を抑制し,厳しい環境への耐性を含む強力なプロバイオティック特性を持っています.
- このプロバイオティクスは,FKSに罹患したヤギの腸内微生物群を効果的に調節し,ホメオスタシスを回復させた.
- L. amylovorusは,フラッピー・キッドン症候群の予防と治療のための新しい治療薬として有意義な可能性を示しています.
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