Plasma essential amino acid concentration and profile are associated with performance of lactating dairy cows as revealed through meta-analysis and hierarchical clustering

• Published in: Journal of dairy science Vol. 105; no. 6; pp. 5044 - 5061
• Main Authors: Letelier, P., Zanton, G.I., Dórea, J.R.R., Wattiaux, M.A.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.06.2022; Elsevier
• Subjects: amino acid composition; body weight; catabolism; cluster analysis; data collection; digestible protein; energy; essential amino acids; feed conversion; mammary glands; meta-analysis; milk; milk proteins; nitrogen use efficiency; nutrient use efficiency; plasma amino acid profile; plasma urea nitrogen; protein synthesis; true protein; variance; plasma amino acid profile; plasma urea nitrogen; nitrogen use efficiency; cluster analysis

Our aim was to explore whether changes in plasma essential AA (EAA) concentration ([EAA]p) or profile (defined here as the molar proportion of individual [EAA]p relative to the total [EAA]p) may serve as an indicator of the EAA status of a cow. We undertook a meta-analysis with the objectives to det...