A sustained release anti-oxidant bolus containing a combination of vitamin E, selenium and grape extract. Designed to support anti-oxidant levels prior to slaughter to optimise liveweight gain and meat quality or when the animal is under stress. Intended for adult cattle on grass or forage-based diets with a liveweight over 400kg. Eroding technology means consistent supply of nutrients. Optimises the immune status, liveweight gain and meat quality. Contains no GMOs or material of animal origin. Bolus applied in one single, simple application with an active life of approximately 60 days.