We vaccinated our girls with Scourgard 3, according to the label, prior to calving. We also vaccinated our calves with Bovishield Gold, and did the usual yearly boosters. Depending on your area, and your vets advice, you would also want to consider vaccinating for Blackleg, Brucellosis, Lepto, as well as anything else your vet recommends (I'm drawing a blank on other possible vaccinations needed). If you're not consulting with a vet, be aware of the difference between a killed virus and a modified live virus before you vaccinate.