Are the horse requirements based on the NRC Nutrient Requirements of Horses?
Yes and no. The requirements for some nutrients like energy and protein are based on the NRC recommendations. However, the mineral and vitamin requirements are based on recent research or field experience. To give the best results for your horse, most requirements for minerals and vitamins are elevated above those recommended by the NRC. The NRC themselves acknowledge that some of their recommendations are based on preventing classical deficiency symptoms and not on improving reproductive and athletic performance.
