RELATION OF Ca, P AND Mg CONCENTRATIONS IN BLOOD PLASMA OF DAIRY COWS DURING DIFFERENT LENGTH OD OPEN DAYS PERIOD (A. . Ćutuk, A. . Hrković-Porobija, E. . Šaljić, L. . Velić, B. Čengić, & F. . Tandir , Trans.). (2026). Works of the Faculty of Agriculture and Food Sciences University of Sarajevo, 70(1), 110-117. https://doi.org/10.67407/rppf.2020.1.110