フェノタイプ改善に基づく豚のアミノ酸の必要性に関する最近の更新
Hyunjun Choi1, Jung Yeol Sung1, Jeonghyeon Son1
1North Carolina State University, Raleigh, United States.
Animal bioscience
|February 12, 2026
まとめ
豚に対するアミノ酸要件の更新は,豚の遺伝的可能性の向上を反映しています. 標準化されたイレアル消化性ライシンと純エネルギー比に基づく現在の勧告は,特に養殖豚の場合は,以前のガイドラインよりも高い.
科学分野:
- 動物の栄養 動物の栄養
- 豚生理学について
- 栄養素の要件 栄養素の要件
背景:
- 国立研究評議会 (NRC) の2012年版のような,ブタに対する確立されたアミノ酸 (AA) の要件は,現在の遺伝的進歩と整合していない可能性があります.
- 豚の精細な成長のための改良された遺伝的可能性は,栄養に関するガイドラインの更新を必要とします.
研究 の 目的:
- 豚に対するアミノ酸の要件を見直し,更新する.
- 最近のデータに基づいて,標準化されたイレアル消化性 (SID) アミノ酸とSIDライシン (Lys) とSIDライスと純エネルギー (NE) の最適な比率を確立する.
主な方法:
- 平均日益 (ADG) と増量対給餌比率の最適な比率を決定するためにメタ分析を実施しました.
- SIDライシンと純エネルギー (SID Lys:NE) とSIDアミノ酸とSIDライシン (SID AA:Lys) の比率に焦点を当てました.
主要な成果:
- ADGの最適なSID Lys:NEは,すべての豚段階においてNRCの推奨値よりも高い.
- ADGの最適SIDメチオニン:ライス,トリプトファン:ライス,およびイソルエウシン:ライス比は,一般にNRC値より高く,体重増加に伴い一定である.
- ADGに対する最適のThreonine:Lysは,豚の体重とともに増加する一方,Valine:Lysは育児期に高く,成長と課題に関連する特定のニーズを示唆する.
結論:
- 現在の豚の遺伝的可能性は,以前に報告されたよりも高いSID Lys:NEとSID AA:Lys比率を要求しています.
- 調整されたSID Threonine:LysとSID Valine:Lysの比率は,最適な成長と飼料効率のために豚の体重に基づいて推奨されます.
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