Effect of amino acid level and ratio on whole-body protein turnover in piglets Kenes Erimbetov, Olga Obvintseva, Vitaly Mikhailov, Olga Sofronova, Olga Rodionova and Lyudmila Polyakova E3S Web Conf., 363 (2022) 03009 Published online: 14 December 2022 DOI: 10.1051/e3sconf/202236303009