For citations:

Kryachko O.V., Shafiev A.P., Lukoyanova L.A. State of humoral defense mechanisms in piglets of different age groups under non-specific bronchopneumonia. International Journal of Veterinary Medicine. 2020;(3):149-153. (In Russ.) https://doi.org/10.17238/issn2072-2419.2020.3.149