What to Do About Porcine Epidemic Diarrhea? A Detailed Guide to Prevention and Control Methods

1. Strengthen feeding management:

Pay attention to disinfection of the pens and insulation of the farrowing house. Once pigs with the disease appear in the pens, they should be isolated or culled immediately. For pig farms currently experiencing an outbreak, interferon can be injected intramuscularly into pregnant sows to reduce the viral load in the body, and piglets after birth can be given continuous intramuscular injections of interferon at therapeutic doses to establish a passive protective barrier. Strengthening biosecurity on the farm, improving the immune efficacy of existing vaccines, and raising the level of maternal antibodies in the sow herd are the top priorities for the prevention and control of porcine epidemic diarrhea. Improper and excessively frequent feedback feeding cannot control an epidemic disease; it will only cause the disease to recur repeatedly within the farm, so feedback feeding must be considered with great caution.

2. Strengthen vaccine immunization

By reasonably adjusting the immunization program with existing vaccines, appropriately increasing the number of immunizations and the vaccine dose, and strengthening comprehensive management, porcine epidemic diarrhea outbreaks can be effectively prevented and controlled. It is worth pointing out that classical vaccine strains have a certain degree of cross-protective efficacy against epidemic strains. Even if an outbreak of porcine epidemic diarrhea occurs on a farm that has been vaccinated, the severity of the disease and the losses suffered will be greatly reduced, whereas once an outbreak of porcine epidemic diarrhea occurs on a farm that has not been immunized, it will cause very serious economic losses.