A number of diseases are prevalent in Australia that result in reduced weaning rates due to lower conception rates and/or increased rates of abortion. These diseases can be avoided or minimised through vaccination.
It is important to only select Angus bulls for use within a breeding program that have received the appropriate vaccinations and health treatments, with Angus bulls being routinely vaccinated for clostridial diseases, pestivirus (bovine viral diarrhoea virus), vibriosis, leptospirosis and in some environments, 3-day sickness (bovine ephemeral fever), tick fever and botulism.
The vaccinations and health treatments that should be conducted will vary with each breeding enterprise and a local veterinarian should be consulted if there is any doubt as to what is appropriate for the breeding program in which the bulls will be joined.