Horses require vitamins for normal body functions. Most requirements will be met by vitamins naturally present in feed, supplementary sources and in the case of B Group vitamins, may be supplied by microbial synthesis in the intestinal tract. Vitamins can be separated into two major groups: the fat soluble vitamins (A, D, E and K) and the water soluble vitamins (vitamin C and the B group vitamins). Water soluble vitamins are relatively non toxic when supplied in excess of requirements, however, excess of the fat soluble vitamins A and D can cause serious problems. Borderline deficiencies of vitamins may exist without the horse showing any observable symptoms. When this occurs, growth, reproduction and performance may be affected.
Vitamins for Horses