What is in this article?:
- Johne‚Äôs Disease control program updated
- Six-level testing
- The incidence of Johne’s disease in dairy and beef herds can be reduced significantly when producers implement measures to reduce the transmission of MAP.
- Johne’s disease is estimated to be present in 68 percent of U.S. dairy operations and eight out of 100 U.S. beef herds.
- New six-level testing classification system.
Dairy and beef producers and bovine veterinarians are encouraged to check out the revised Uniform Program Standards for the Voluntary Bovine Johne’s Disease Control Program developed by USDA in conjunction with the U.S. Animal Health Association that went into effect Sept 1.
The updated Control Program is less cumbersome, has three levels of producer involvement and has an easier-to-understand-and-follow system for classifying herds that have a lower risk of transmitting Mycobacterium avium paratuberculosis (MAP), the bacteria known to cause Johne’s disease.
“All producers participating in the revised Voluntary Bovine Johne’s Disease Control Program will start with the education component, then they can choose whether to proceed to the management component that incorporates best management practices or move on to the classification component that incorporates best management strategies and testing,” says Dr. Michael Carter, National Johne’s Disease Control Program Coordinator, National Center for Animal Health Programs, USDA-APHIS-VS.
“This is a progressive program, and producers can determine their level of involvement. The more producers know about and test for Johne’s disease, the better for them and their customers.”
Carter says the incidence of Johne’s disease in dairy and beef herds can be reduced significantly when producers know about Johne’s disease and implement measures—including testing—to reduce the transmission of MAP. He says Johne’s disease is estimated to be present in 68 percent of U.S. dairy operations and eight out of 100 U.S. beef herds.
A National Animal Health Monitoring Systems study found that infected dairy herds experience an average loss of $40 per cow in herds with a low Johne’s disease clinical cull rate while herds with a high Johne’s disease clinical cull rate lost on average of $227 per cow. Beef cows clinically infected with Johne’s disease produce less milk resulting in lighter calves at weaning, and infected cows can be slower to breed back.