Purchase horse tack or horse feed in South Dakota? There are requirements of the manufacturer on your horse feed label. Commercial feed labels follow a formula set by the Association of American Feed Control Officials. The label must include the following information:the feed name, purpose or use of the feed, a guaranteed analysis of the nutrients in the feed, list of ingredients, directions for feeding and use, name and address of the manufacturer, net weight of the bag, a list of drugs if the feed is medicated and any precautions or warnings.