The economic efficiency of the use of mixed ligand complexes of Zinc, Man-ganese and Cobalt in the rations of highlyproductive cows of the Ukrainian Black-Spotted Dairy breed
Naukovij vìsnik Lʹvìvsʹkogo nacìonalʹnogo unìversitetu veterinarnoï medicini ta bìotehnologìj ìmenì S.Z. Gžicʹkogo. Serìâ: Sìlʹsʹkogospodarsʹkì nauki/Naukovij vìsnik Lʹvìvsʹkogo nacìonalʹnogo unìversitetu veterinarnoï medicini ta bìotehnologìj ìmenì S.Z. G̀žicʹkogo. Serìâ Sìlʹsʹkogospodarsʹkì nauki