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食用活性乾燥酵母とバチルス・サブティリスの組み合わせは,生産性,卵の品質,および高齢の繁殖鶏の免疫を改善します
Yuchen Liu1,2, Xintong Wang3, Xiaoyu Zhao4
1National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
Animal nutrition (Zhongguo xu mu shou yi xue hui)
|September 2, 2025
まとめ
ダイエット活性乾燥酵母 (ADY) とバチルス・サブティリス (BS) の組み合わせは,老鶏の性能,卵殻の品質,免疫を向上させました. このADY-BS混合物はADY単独よりも 腸内微生物群と免疫反応を高めました
科学分野:
- 動物科学
- 鶏の栄養
- 腸内微生物群の研究
背景:
- 高齢の繁殖鶏はしばしば生理的・生殖能力の低下を経験する.
- 産卵鶏の生産性や健康状態の年齢による低下を緩和するために,食事の介入が検討されています.
- アクティブ・ドライイースト (ADY) やバチルス・サブティリス (BS) のようなプロバイオティクスが腸の健康と免疫に与える影響を理解することは極めて重要です.
研究 の 目的:
- 高齢の繁殖鶏に対するADY単独またはBSとの併用による効果を評価する.
- 産卵能力,卵の質,血液のパラメータ,生殖特性への影響を評価する.
- イレウム微生物群,代謝群,子宮の遺伝子発現の変化を調査する.
主な方法:
- 336匹のハイライン・ブラウン・レイヤー・ニワトリをランダムに対照群,ADY群,またはADY-BS群に分けました.
- 食事療法には,基礎ダイエット,1g ADY/kgダイエット,または1g ADY + 0. 1g BS/kgダイエットが含まれていました.
- 評価されたパラメータには,産生能力,卵質,血液指標,イレウム微生物群 (16S rRNA配列),代謝,子宮遺伝子発現 (RNA-seq) が含まれていた.
主要な成果:
- ADY-BSグループは,対照群と比較して卵の生産と飼料の変換比率の改善を示した.
- ADYとADY-BSの両方が卵殻の強さを高め,ADY-BSはリゾジーム,抗体位数,血清カルシウムを増加させた.
- ADY-BSサプリメントは乳膜の微生物群を変化させ,ラクトバチルスを増加させ,免疫とカルシウム輸送に関連する特定の代謝物と子宮の遺伝子発現を変化させた.
結論:
- ADYとBSの組み合わせにより,生産性,卵殻の質,免疫機能が著しく改善されました.
- ADY-BSサプリメントは腸内微生物群と代謝群を正に調節し,子宮の遺伝子発現に影響を与えました.
- ADYとBSの組み合わせは,後期産卵鶏の健康と生産性を高める有望な戦略です.
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