Collection of rumen gases from young calves

anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal domestique animal pour cuirs et peaux animales animales de carne animals appareil digestif artiodactyla artiodactyle body parts bovidae bovide bovin bovine bovines calves cattle digestive system domestic animals estomac ganado ganado bovino gases gaz jeune animal livestock mammals meat animals methode methods muestreo partes del cuerpo partie du corps physical states rumen rumiante ruminant ruminants sampling sistema digestivo stomach ternero veau vertebrados vertebrates vertebre young animals