Salmonellosis is a pervasive disease that is hard to keep out of a dairy operation. There are many routes Salmonella transmission can take. Once it is in the herd, it can be devastating to cattle health and performance. Bhushan Jayarao, DVM, Pennsylvania State University and Gary Neubauer, DVM, Pfizer Animal Health, offer these tips on helping reduce disease exposure on the dairy.
- Make sure loaders and other feeding equipment are not used simultaneously to handle manure.
- Pasteurize waste milk and colostrum fed to calves.
- Maintain sanitary calving facilities to avoid infecting newborns.
- Keep populations of rodents, feral cats and birds low in feed storage and animal housing areas.
- Control flies throughout the dairy with common fly control methods.
- Restrict visitors and insist on biosecurity measures (such as clean boots and clothing) by all who enter the facility, including the herd veterinarian.
- Clean calf feeding utensils and oral treatment equipment with chlorhexidine (3 ounces per gallon).
- Wash boots regularly with orthophenylphenol (e.g., 1-Stroke Environ), and change and launder work clothes daily. Ideally, boots and work clothing should be left on the dairy.
- Thoroughly sanitize transport trailers, particularly when hauling young calves.