Disease structure of milk cows and the effect of the mass fractions ratio of fat and protein in milk on the level of the metabolitesEvgeny Krupin, Shamil Shakirov, Mirzabek Zukhrabov and Alexandra VyshtakalyukBIO Web Conf., 27 (2020) 00040DOI: https://doi.org/10.1051/bioconf/20202700040