@article{Shaydullin2025variability, author={Shaydullin, R.R. and Zagidullin, L.R. and Shamaeva, E.V.}, title={Variability of milk productivity indicators in dairy cattle of different breeds and genotypes}, journal={Agrobiotechnologies and digital farming}, publisher={Kazan state agrarian University}, year={2025}, pages={53-57}, volume={4}, issue={2}, }