How much protein do horses need, and what happens if they get too much? Also, what exactly is "crude" protein?

Horses at maintenance need about 8 to 10% of their diet to be protein; this will only increase very slightly if exercising but will increase more significantly if breeding, lactating, or growing (up to 16% at times). Feeding excess protein will not create a problem unless the horse has existing kidney problems. High-protein diets will cause a high level of ammonia to be excreted in the urine. If horses have kidney problems and are consuming high levels of protein, it …

How much protein do horses need, and what happens if they get too much? What exactly is crude protein?

Protein is needed to supply essential amino acids and nitrogen to the horse. The horse uses these subunits of protein for building muscle, structural tissues, organs, hormones, and several other vital parts or substances for life. Crude protein is the amount of protein that is contained in a feed and is determined chemically by determining the amount of nitrogen in a feed and calculating the corresponding amount of protein that would be represented of the determined amount of nitrogen. Digestible …