Free amino acids in arterial and venous blood of dairy cattle with differing milk performance

agricultura agriculture alanina alanine amino acids anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal domestique animal pour cuirs et peaux animal production animales animales de carne animals artiodactyla artiodactyle blood blood composition blood proteins blood vessels body fluids body parts bovidae bovide bovin bovin laitier bovine bovines cardiovascular system cattle cistina composition composition du sang cystine dairy cattle domestic animals fenilalanina ganado ganado bovino ganado de leche isoleucina isoleucine leucina leucine liquide biologique lisina livestock lysine mammals meat animals milk production organic compounds organic nitrogen compounds partes del cuerpo partie du corps phenylalanine production production animale proteine proteine sanguine proteins rumiante ruminant ruminants sang sangre sistema cardiovascular vaisseau sanguin valina valine vertebrados vertebrates vertebre