Retained placenta, metritis and endometritis are diseases of immune function in the transition period, even though they are often thought of as bacterial infections, Stephen LeBlanc, veterinarian at the OntarioVeterinaryCollege in Guelph, Ontario, Canada, told audiences at the recent Dairy Cattle Reproductive Council Annual Meeting and Convention.

Therefore, the key is to prevent them by boosting transition-cow management, especially feed intakes. “Take everything out of the way to get transition cows to eat,” says LeBlanc. That includes dealing with overcrowding issues, inadequate bunk space and over-conditioning.