Zenkin, Alexander, Julia Boryaeva, Konstantin Gorbunov, Vasily Korotky, and Viktor Ryzhov. “Blood Biochemical Parameters of Calves When Using Herbal Preparations Based on Biopolymers”. Amazonia Investiga 8, no. 23 (October 11, 2019): 50-55. Accessed April 19, 2024. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/842.