Efficiency of complex feed hydrolysate on piglets of the rearing group Azamat Shantyz, Egayan Ekaterina, Aliy Shantyz, Eugeny Marchenko and Yury Baldgi E3S Web Conf., 398 (2023) 01007 Published online: 22 June 2023 DOI: 10.1051/e3sconf/202339801007