Boranbayeva Togzhan; Tulemissova Zhanar; Ozkaya Serkan; Khussainov Damir. EFFECT OF PROBIOTIC "LACTOBACTERIN-TK2 &Quot; ON IMMUNOBIOLOGICAL STATUS OF NEWBORN CALVES IN THE THERAPEUTIC AND PROPHYLACTIC OF GASTROINTESTINAL DISEASES. ВНР 2020, 26-32.