Effect of Multivitamin and Amino Acid Supplementation on Average Daily Gain and Health Status in Cross-Bred Holstein Calves with Poor Growth Rates

摘要

The objective of this study was to determine the effect of multivitamin and amino acid supplementation on average daily gain (ADG) in post-weaning dairy calves 4–7 months of age. Thirty-two cross-bred, post-weaning, female Holstein calves with ADG 0.05) in ADG between days 30 and 60. However, ADG was significantly higher (P 0.05) in the treatment group than in the control group (0.68±0.04 kg vs 0.49±0.06 kg) at day 90. In conclusion, the results strongly supported the hypothesis that multivitamin and amino acid supplementation effectively increase ADG after administration at day 90 and in the overall post-weaning period in cross-bred female Holstein calves 4–7 months of age with poor growth rates at pre-weaning.