There are two major causes of stomach ulcers in horses: First, a reduced ability of the stomach to defend itself against natural stomach acid that can be a result of stress reducing the normal protective mechanisms within the stomach. Secondly, prolonged exposure of the stomach to high levels of stomach acid due to the modern feeding practices of fasting and high grain diets and even pelleted feeds may result in stomach ulcers. Adult horses secrete up to 30 liters of gastric acid a day which is continuous, and independent of feed intake. UlcRAid is a unique broad spectrum, concentrated nutritional supplement with: s Colostrashield, smother naturess protective shields. A natural alternative to pharmaceuticals and antibiotics with no side effects. Colostrashield contains over 37 important natural immune factors and more than 8 growth factors that nutritionally aid in combating illness while protecting against infection. The growth factors work to repair and reverse the damage caused by disease and stress. s Calcium and Magnesium, commonly known as antacids.