食物代謝可能なエネルギーと蓄積密度の成長性能,血液代謝物,栄養素利用,および肉鳥の体格に対する影響
Zeyad Kamal Imari1, Saeid Jahandost Ardin2, Ahmad Hassanabadi2
1Department of Animal Production Techniques, Technical College of Al-Musaib Al-Furat Al-Awsat Technical University AL-Kufa Iraq.
Food science & nutrition
|September 3, 2025
まとめ
代謝可能なエネルギー (ME) の高い食事と飼育密度 (SD) の増加により, brojlerの体重増加と飼料の変換が改善されました. 推奨された食事とMEの多い食事は血中コレステロールを増加させ,SDの高い食事はパフォーマンスに悪影響を及ぼさなかった.
科学分野:
- 動物科学
- 鶏の栄養
- 鶏肉の生産
背景:
- 飼料のエネルギーと飼料の密度は,ブローラーの性能と健康に影響を与える重要な要因です.
- これらのパラメータを最適化することは,効率的で収益性の高い brojler 養殖に不可欠です.
研究 の 目的:
- 代謝可能なエネルギー (ME) レベルと飼育密度 (SD) の変動がブローカーの成長,肉体の質,血液代謝物,栄養素の消化性に与える影響を調査する.
- 鶏肉の生産のために最適な食事のMEとSDを決定する.
主な方法:
- ロス308の雄鶏468匹を対象とした3x3の因数実験が42日間にわたって実施された.
- 3つの飼育密度 (10,13,16羽/m2) と3つのMEレベル (低,推奨,高) を1回の治療で5つの複製で試験した.
- 評価されたパラメータには,飼料の摂取量,体重増加,飼料の変換比率,血液代謝産物,および表面的全経路消化能力 (ATTD) が含まれていた.
主要な成果:
- MEの値が高くなるダイエット (推奨され,高エネルギー) は,低エネルギーダイエットと比較して体重増加と飼料変換比率 (FCR) を改善しました.
- 飼育密度が16羽/m2に増加しても brojler の性能には悪影響はなかった.
- 低エネルギーダイエットは脂質の摂取量とATTDを減らし,MEダイエットは血中コレステロールとHDL-Cを増加させた.
結論:
- 食中のME濃度は, brojlerの成長能力と血液の脂質プロフィールに大きな影響を与えます.
- 飼育密度は最大16羽/m2で,生産性能を損なうことなく受け入れられる.
- 飼料のエネルギーと飼料の密度のバランスをとることは 飼料の生産効率を最適化するための鍵です
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