Analysis of the relationship between metabolism and carcass traits of Japanese Black cattle by metabolomics

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K05891
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 42010:Animal production science-related
• Research Institution: Kyoto University
• Principal Investigator: Tomonaga Shozo 京都大学, 農学研究科, 助教 (00552324)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 黒毛和種 / メタボロミクス / 枝肉成績 / アミノ酸 / 有機酸 / ビタミン

Outline of Final Research Achievements

This study was conducted with the aim of analyzing the relationship between the metabolism of Japanese black cattle and carcass traits using plasma metabolome analysis. We have established new analytical method superior to conventional method for plasma metabolome analysis. This method will be useful for understanding amino acid metabolism, organic acid metabolism, and vitamin metabolism. Next, we used this method to analyze the relationship between metabolism during fattening and carcass traits, and found that there was a relationship between several metabolic pathways, but the relationship with kynurenine was not confirmed. However, kynurenine was suggested to be involved in the association with vitamin A restriction during the mid-fattening stage, suggesting the need for further research.

Free Research Field

栄養生理学

Academic Significance and Societal Importance of the Research Achievements

本研究成果から、黒毛和種における代謝研究において有用な分析法を提案することができた。具体的には、アミノ酸、有機酸およびビタミンといった、黒毛和種の枝肉成績に大きく関与する重要な栄養素代謝の関連研究の発展に貢献することが期待される。本分析法は、原著論文として公開しており他の研究者も用いるようになることが期待される。