Maintenance threonine requirement and efficiency of its use for accretion of whole-body threonine and protein in young chicks

amino acids aves de corral cistina cystine feed conversion efficiency gain de poids ganancia de peso glicina glycine (amino acid) histidina histidine isoleucina isoleucine lisina lysine methionine metionina poultry prolina proline proteine proteins serina serine threonine treonina uses usos utilisation volaille weight gain