For citations:

Mikhailova I.S., Zaitsev V.V., Pudovkin N.A., Shcherbakova E.N., Zakharkina N.I. Clinical and hematological parameters of calves in biogeochemical conditions of the Astrakhan region. International Journal of Veterinary Medicine. 2021;(4):135-141. (In Russ.) https://doi.org/10.52419/issn2072-2419.2021.4.135