環境濃縮と離乳後の豚のアゴニスティックな行動:人工知能を用いたパイロット研究
Md Kamrul Hasan1,2, Hong-Seok Mun1,3, Keiven Mark B Ampode1,4
1Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Republic of Korea.
Biology
|February 12, 2026
まとめ
ゴムスティックとライグラス・ヘインで環境を豊かにする (EE) は,噛み傷や病変などのブタのストレス行動を軽減しました. この研究は,EEが若い豚の成長性能に影響を与えることなく,福祉を改善することを示しています.
科学分野:
- 動物科学 動物科学
- エトロジー エトロジー エトロジー
- 農業工学 農業工学とは
背景:
- 離乳はブタ仔にとって大きなストレス因子であり,攻撃性と噛み付く行動が増加します.
- これらの行動は,仔豚の成長と全体的な福祉に悪影響を及ぼします.
- 環境濃縮 (EE) は,ストレス関連の行動を緩和するための潜在的な戦略です.
研究 の 目的:
- ゴムスティックとイタリアのライグラス・ヘインが,ブタの福祉にEEとして与える影響の組み合わせを調査する.
- EEが成長のパフォーマンス,アゴニスティックな行動,病変の発達,便の一貫性,血液のパラメータに与える影響を評価する.
- 小豚の社会的ストレスを定量化するためのAIベースのシステムの有効性を評価する.
主な方法:
- 7週齢の64匹の豚を4週間の間,対照群とEE群に分けました.
- EEはゴムスティックとイタリアのライグラス芝生を供給することでした.
- アゴニスティックな行動は,オーバーヘッドカメラとAIシステム (YOLOv8) を使用して監視されました.
- 成長,便の一貫性,病変の重症度,血液の生化学的パラメータを測定した.
主要な成果:
- 組み合わせたEEは,病変の重症度が著しく低下し,アゴニスティックな行動が減少し,便の一貫性が改善されました.
- EEは,血液中のフリー脂肪酸のレベルを低下させた.
- 成長のパフォーマンスはEE介入によって著しく影響を受けませんでした.
- AIシステムは,行動の定量化において高い精度を示した.
結論:
- ゴムスティックとライグラス・ヘインによる環境濃縮の組み合わせは,離乳豚のストレスと噛みつきを効果的に軽減します.
- AIベースのモニタリングは,豚の社会的ストレスを評価するための貴重なツールです.
- これらの発見を検証するために,増殖によるさらなる研究が推奨されます.
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