@article{Pischan_Lytvyschenko_Gonchar_1, title={THE SERVICE PERIOD AND LEVEL OF MILK PRODUCTIVITY OF HOLSTEIN COWS FOR 305 DAYS OF LACTATION}, volume={4}, url={https://bulletin-biosafety.com/index.php/journal/article/view/121}, number={1}, journal={Theoretical and Applied Veterinary Medicine}, author={Pischan, S. and Lytvyschenko, L. and Gonchar, A.}, year={1}, month={1}, pages={176-183} }