Vol. 11, Special Issue 8 (2022)

Author(s):
Dr. Mohit Mahajan, Dr. Shiv Prasad, Dr. CB Singh, Dr. Sunil Kumar, Shivanshu Tiwari and Dr. Gourav Tevatai

Abstract:
Early estrus expression and early conception is the goal of all farmers rearing pre-pubertal heifers. The current experiment was designed with the objective to reduce the age of the first estrus increasing the overall lifetime productivity. Pre-pubertal heifers were fed the experimental diet composed of bypass protein, bypass fat, rumen-protected choline, rumen-protected niacin and probiotics. The addition of the experimental diet led to a significant improvement in the body condition score for the heifers starting from the first month, there was also an early accomplishment of ideal 3.5 BCS in the experimental heifers. The body weight of heifers during the experiment recorded a significant improvement during the experiment in the treated group. The weight gain was significantly more in the treated group than in the control group at all stages of the experiment. The estrus induction rate was high and related to the increased weight gain and BCS, in comparison to the control group. It was recorded that the average age of estrus induction was reduced by two months in the experimentally fed heifers.