Heifers that were given their first shot of BVD and Lepto vaccine four weeks ago should be receiving their second shot this week. Don’t forget to include stock bulls and vasectomised bulls on the farm.Young calves that received their first clostridial vaccine four to six weeks ago should also be getting their second shot now. Giving one shot for clostridial disease is a false economy as you won’t be covered for the full grazing season.