author(s)
Aamrapali Bhimte, Laishram Kipjen Singh, Balamurugan B, Neeti Lakhani, Dr. Vijay Prakash Maurya, Mukesh Kumar Bharti, Adesh Kumar, Dr. Gyanendra Singh and Dr. Mihir Sarkar

abstract
The experiment was conducted to investigate the effect of antioxidant (vitamin E (Vit E)) and trace minerals (selenium (Se), copper (Cu), zinc (Zn)), high energy diet supplementation and its effect on milk yield (MY) and biochemical parameters in crossbred cows During the transition period. For this, advanced pregnant crossbred cows (n = 20) were selected. Treatment(TRT) (n=10) group was supplemented with Vit E, Se, Cu and Zn incorporated in wheat flour bolus from -4 to 8 week of calving and were provided with 20% additional concentrate from 2 to 8 week of calving. Control (CON) group was given only basal diet without any supplementation. MY of each animal was recorded. Blood samples were collected on weekly interval from -4 to 8 week of calving. MY was higher (p<0.01) in the TRT versus CON. Some biochemical parameters (p<0.05) levels were also found significantly elevated and some significantly decrease (p<0.05) in the TRT versus CON group.