Curt Arens STAY WARM: Making sure bulls have enough feed, minerals and water — as well as protection from winter elements — are simple steps in protecting your battery of bulls from frostbite and winter injuries. Keeping bulls out of extreme weather conditions is important for maintaining health into the next breeding season. When you remember that your battery of bulls contributes half of the genetics to your cow herd, it drives home the importance of bull fertility. Winter is a time of risk for bull health and fertility, so management of the bulls during this time is crucial, said Kacie McCarthy, Nebraska Extension beef cow-calf specialist. McCarthy discussed winter care for bulls during a recent University of Nebraska BeefWatch webinar.