author(s)
Gaurav Thorat, SS Lathwal, Anjali Khare, Mamata Joysowal, A Aziz, Chander Datt and Khushbu Jain

abstract
Twenty four female KF calves were selected and distributed randomly into 4 groups of 6 animals each based on their body weight and age in a randomised block design (RBD). In group T₁, the concentrate mixture consisted of mineral mixture without iodine. The animals in group T₂ and T₃ were supplemented with iodine at 0.25 and 0.5 ppm of dietary DM while in group T₄, 4 micronutrients i.e. chromium, naicin, vitamin E and Zn were supplemented @ 1.5, 600 40 and 40 ppm, respectively for 150 days. The initial DMI was 3.38kg, 3.65kg, 3.37kg and 3.46 kg and final 5.66kg, 5.67kg, 5.91kg and 5.69kg of T₁, T₂, T₃ and T₄ respectively; it is similar in all the groups. The initial mean body weight was 116.68 kg, 117.65 kg, 115.16 kg and 116.62 kg in T₁, T₂, T₃ and T₄ respectively and final mean body weight was 198.42, 201.15, 204.28 and 201.21 kg of T₁, T₂, T₃ and T_4. The mean values for ADG values were similar in all the groups, but significant (P<0.05) difference among season, higher in summer (544.36g) than winter (564.12g).