All Natural Herbs for Equine Manure Health An equine’s bowel movements should be as regular and as simple as their diet itself. If your horse’s manure is too hard, too soft, or has a strange texture or odor, it could signal problems with the horse’s intestine. At Silver Lining Herbs, we create all-natural herbal supplements that are specially formulated to improve your horse’s regularity and overall intestine health. Our all-natural herbs are NASC Quality Seal approved and are made from the highest quality plant formulas to be the best alternative treatment for your animal’s health and bowel regularity. Your horse’s manure might not smell like roses, but it should at least smell like manure!