Conclusions
Supplementing Holstein cows in early lactation with 10 and 20 mg/day of biotin increased milk and milk protein yields. However, the mode of action that caused this increase in milk production is not known. From measurements that were taken, increased DMI and changes in body fat mobilization were not responsible for increased milk production with biotin supplementation. Future studies pertaining to biotin supplementation should look at biotin's effect on cellulose digestion, ruminal fermentation, and glucose production to better understand how supplemental biotin increases milk production.
References
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