幼稚園での中鎖脂肪酸補給のレベルが,離乳豚の成長性能,糞便スコア,腸の透過性,エネルギー状態,および全体的な経路の消化性に与える影響
Jannell A Torres1, Madison J Mejia1, Chan Ho Kwon1
1Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602, USA.
Translational animal science
|September 3, 2025
まとめ
食事中の中鎖脂肪酸 (MCFA) は,離乳豚の成長と飼料の摂取を1. 0%まで改善しました. MCFAサプリメントは,エネルギーとタンパク質の消化性を高め,エネルギー状態を改善し,若い豚の腸の透過性を低下させた.
科学分野:
- 動物の栄養
- 豚の生理
- 消化 器 の 健康
背景:
- 中鎖脂肪酸 (MCFA) は,動物の食事における潜在的な利点として認識されています.
- 離乳豚の成長性能と腸の健康を最大化するために,MCFAの最適な含有レベルを理解することは極めて重要です.
研究 の 目的:
- 離乳豚の成長能力,糞便の特性,腸の浸透性,エネルギー状態,栄養素の消化性に対する食中のMCFA濃度の変化の影響を評価する.
- 育児ブタの最適な食事含有量であるMCFAを決定する.
主な方法:
- 100匹の離乳豚を対象に35日間の食事試験を実施し,5種類の食事療法 (0. 0%から1. 5%のMCFA) を実施した.
- 栄養素の成長性能 (体重,日平均摂取量,日平均摂取量,摂取量/摂取量比),糞便スコア,全経路消化能力 (ATTD),および血パラメータ (β-ヒドロキシブチラート,自由脂肪酸,ダイアミン酸化酵素,d-乳酸塩) を評価した.
主要な成果:
- 食事によるMCFAレベルは,体重の0.0%まで増加し,幼稚園期初期における平均日々の増加と,全体的な成長と飼料の摂取の線形的な改善を示した.
- 総エネルギー,乾物,および原蛋白の表面的な全経路消化性は,より高いMCFA含有量で線形的に増加した.
- 血 β - 水酸化物と自由脂肪酸の濃度が低下する傾向があり,血 d - 乳酸の濃度が二次的に低下し,エネルギー状態の改善と腸の透過性の低下を示した.
結論:
- MCFAを最大1.0%まで摂取すると,離乳豚の成長性能,飼料の摂取,栄養素の消化性が効果的に向上します.
- MCFAはエネルギー状態を改善し,早期の育児期間に腸の透過性を減少させます.
- この結果から,MCFAは若い豚の健康と生産性を改善する貴重な飼料添加物である可能性があることが示唆されています.
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