Respond cattle feeding products with patented Zymace™ technology help to restore normal feed intake levels in cattle that are undergoing stress--at weaning, vaccination, processing, shipping or overheating. Maintains nutrient levels and supports daily gain and overall health quickly, efficiently and economically. Zymace is a proprietary Aspergillus oryzae fermentation extract that is clinically proven to stimulate appetite by delivering higher yields of energy and protein from feed. Respond products also contain a unique blend of direct-fed microbials, vitamins, minerals, essential oils and highly bioavailable trace minerals.