Recent research shows treatment of mild to moderate Gram-negative mastitis can be successful, and it is changing the way veterinarians and producers handle coliform mastitis cases. Roger Saltman, veterinarian and group director of Pfizer Animal Health Cattle Technical Services, offers this advice:

• Culture to identify organisms. Work with your veterinarian to establish a routine and ongoing culturing program to determine the common mastitis-causing pathogens on your dairy. Utilizing your records, have your veterinarian recommend intramammary therapy labeled for treatment of the identified pathogens.

• Determine length of treatment. Establish treatment duration protocols with your veterinarian depending on culture records, severity and duration of infection, and health status of the cow.

• Complete the full course of therapy. Even if milk returns to normal and cows appear to be cured, complete the full course of treatment.