For citations:

Narozhnikh K.N. The influence of ecological and geographical conditions on the concentration of heavy metals in the spleen of Hereford cattle bred in the conditions of the Novosibirsk and Altai regions. Bulletin of NSAU (Novosibirsk State Agrarian University). 2020;(4):111-117. (In Russ.) https://doi.org/10.31677/2072-6724-2020-57-4-111-117