鶏の胆酸のプロファイル,排泄,腸肝循環に対する食事の影響を調査する

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Kobe Buyse¹, Christof Van Poucke², Marta Lourenço³

¹Animal Science Unit, Institute for Agricultural, Fisheries and Food Research, Burg. Van Gansberghelaan 119, 9090 Merelbeke-Melle, Belgium; Technology and Food Science, Institute for Agricultural, Fisheries and Food Research, Brusselsesteenweg 370, 9090 Merelbeke-Melle, Belgium.

Poultry science

|February 22, 2026

まとめ

鳥の胆酸 (BA) の代謝は複雑である. 鳥類では,BAは哺乳類とは異なり,外周血液で開放的に循環し,脂肪の消化に異なる役割を果たし,食事による消化能力の差異への影響は限られていることを示唆しています.

科学分野:

動物生理学動物生理学
栄養バイオケミストリー
比較代謝について

背景:

胆酸 (BAs) は脂質の消化に不可欠ですが,家禽におけるその生理学的役割は完全に理解されていません.
鳥類の胆酸代謝に関する既存の知識は,特にその分布と組成に関する知識は限られている.
胆酸の動態を調べることは,家禽の栄養と生理学を理解するために不可欠です.

研究の目的:

異なる食事条件下で, brojler chickensと産卵鶏の胆酸代謝を調査する.
鶏の食事,脂肪の消化能力,胆酸の排泄の関係を見極めるために.
brojler chickensの様々な組織と血液区画における胆酸の分布と組成を特徴づけるために.

主な方法:

焼肉鶏と産卵鶏を対象に2つの実験を実施し,高度な消化性または挑戦的な食事を与えました.
脂肪の消化性と糞便の胆酸の排泄を評価した.
胆囊の胆酸濃度,腸の含有量,および肉のメゼンテリックおよび周辺の血液プールで測定された.

主要な成果:

高度な消化性のある食事は, brojler の脂肪の消化性を改善したが,産卵鶏の場合は効果が限られていた.
糞便の胆酸分泌は,両方の種で脂肪の消化能力と弱い相関を示した.
主要な胆酸は (タウロ) チェノドオキシコール酸とタウロコール酸で,結合胆酸はより効率的に再吸収された.
ダイエットはブライラーの腸内または循環中の胆酸濃度を有意に変化させなかった.
周周と中枢の血液のBA濃度は類似しており,開かれた循環を示唆しています.

結論:

鳥類の胆酸代謝は哺乳類よりも複雑で,BAは外周循環でよりオープンに循環する.
エントロ肝循環は,哺乳類と比較して,家禽の脂肪消化に少ない役割を果たす可能性があります.
胆酸代謝だけでは,鳥の脂肪の消化性における食事による変動を完全に説明することはできません.

キーワード:

胆汁酸は胆汁酸である.ブロイラー (Broiler) とはダイエットタイプダイエットタイプ消化器の生理学消化器の生理学産卵鶏が産卵しています.

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