Influence of feed additive from secondary raw materials of starch-treacle production on sheep-producers productivityValery Kulintsev, Batyrchan Abilov, Aleksandr Marynich, Zubiru Khalimbekov and Igor SerdyukovE3S Web Conf., 175 (2020) 03022DOI: https://doi.org/10.1051/e3sconf/202017503022