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Dairy Cattle Health Updates, Advice and Tips from Devoted Vets

"New" antibiotic for Mastitis:
The drug company Pfizer has invested heavily in the launch and marketing of their "new" product for Mastitis - Clavulox LC.
The antibiotics in the formulation are not new. An identical product, Clavet, manufactured by Norbrook, has been on the market for some time. What is new is the withhold period for milk of 48 hours, compared with the withhold for Clavet of 72 hours.
This is an obvious advantage.
As the antibiotics within both Clavet and Clavulox LC are usually effective against E coli, and Streps sensitive to the antibiotic amoxicilllin, this product should be considered for treatment of environmental mastitis. The main causes of environmental mastitis are indeed, E coli and Strep uberis.
The risk of environmental mastitis is high when there is a significant concentration of manure in the environment - for example, wet, muddy conditions, and in areas of high concentration of cows - feeding pads, calving pads, calving paddocks, stand off areas, deteriorated tracks, and high stocking rates in paddocks. The risk of infection is highest immediately around calving time, and in the hour or so after milking.
The higher the amount of manure at the teat end, especially after milking, the greater the risk. Wetness at the teat end immediately before and after milking also increases the risk.
Milk cultures can be used to confirm the presence of environmental bacteria.
If environmental mastitis is confirmed by tests, or is strongly suspected, either Clavet or Clavulox LC is an appropriate first choice antibiotic - and the short milk withhold of Clavulox LC is an added advantage.

Contact Devoted Vets on 03 5623 2525 for more information regarding the use and price of these treatments. Devoted Vets at Warragul Vet Clinic, for dairy farmers in West Gippsland.