Feed-grade limestone is a type of limestone that is used as a mineral supplement in animal feed. It is a high-purity form of limestone that is ground to a fine powder and contains high levels of calcium and other essential minerals such as magnesium and phosphorus.

Feed-grade limestone is commonly used in the livestock and poultry industries to help improve the health and productivity of animals. It can help to promote strong bones, teeth, and eggshells in poultry, as well as improve the growth and development of young animals.

Additionally, it can be used as a feed additive to help reduce the occurrence of certain diseases in animals. Feed-grade limestone is typically added to animal feed in small amounts to ensure that animals receive the appropriate levels of calcium and other minerals needed for optimal health and growth. As with all animal feed supplements, it is important to ensure that feed-grade limestone is used following industry regulations and best practices to ensure the safety and well-being of animals.