Variations in plasma biotin and mineral concentrations due to zinc-biotin supplementation in lame Karan Fries cows during peri-parturient period

Nutritional programme of pregnant cows have a significant effect on occurrence of lameness in later lactation. Highly productive lactating cows have much greater needs for minerals and vitamins. Blood biotin and zinc, that are important nutrients in the formation and integrity of the keratinized tissues, often decreases around calving and extra supplementation is recommended, particularly in lame cows during peri-parturient period. The present study was carried out on 40 high yielding lame crossbred KF cows maintained at Livestock Research Centre (LRC), NDRI Karnal, which were distributed into control and three treatment groups and supplemented with 10, 20 and 30 mg/d biotin and 2g of ZnSO₄ during peri-parturient period. The results of the study suggested that, transition diet with biotin and Zn supplementation significantly increased the concentrations of plasma biotin and Zn levels in supplemental groups compare to control. The overall biotin values were 344.23±11.38, 637.42±24.78, 672.75±29.40 and 709.01±22.77ng/L and Zn values were0.40±0.01, 1.12±0.05, 1.22±0.05 and 1.18±0.05 ppm in control, T-1, T-2 and T-3 groups respectively. Thus, by feeding supplemental nutrients (biotin and zinc) lameness can be minimize in high yielding dairy cows during peri-parturient period.