Increasing phosphorus uptake from the gut of dairy cows by supplementing 1 -hydroxylated vitamin D compounds

摘要

A feed for dairy cows containing 1 alpha -hydroxylated vitamin D compounds is disclosed. The vitamin D compounds cause improved utilization of dietary phosphorus and can eliminate the need for supplemental quantities of inorganic phosphorus in the cows' diet. In particular, milk production in dairy cows may be maintained in relatively high yield even though fed a low P diet.