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What Can You Do To Combat Circovirus?

by 5m Editor
8 January 2007, at 5:47pm

US - Porcine circovirus, currently referred to as PCVAD (porcine circovirus and associated diseases) and previously known as PMWS (postweaning multisystemic wasting syndrome), affects pigs during finishing, reports Dr. Todd See, Swine Genetics Specialist, North Carolina State University.

Dr Todd See
Swine Genetics Specialist
North Carolina State University

The disease can show much variation in symptoms and severity. In addition, most affected farms will also have concurrent infections of PRRS, mycoplasma pneumonia, or swine influenza.

Affected farms will generally see a combination of anorexia, diarrhea, rapid weight loss, respiratory problems, and skin discoloration in the pigs. These symptoms will result in unthrifty pigs with an increased rate of mortality.

Because of the increased prevalence of PCVAD in the United States, the National Pork Board and the American Association of Swine Veterinarians recently teamed up to produce a brochure that provides recommendations that can reduce the effects of PCVAD. The appearance of PCVAD is often associated with environmental stress on the pigs. The following is a brief summary of some of their recommendations to reduce these stressors and minimize the impact of PCVAD.

  • Practice strict biosecurity, controlling the movement and exposure of pigs, people, and rodents.

  • Thoroughly clean and disinfect barns between groups of pigs using an effective disinfectant, and allow time for drying before moving in the next group of pigs.

  • Pay attention to the environment. Keep rooms and buildings at the proper temperature for the age and size of the pig. Also, reduce humidity and check ventilation systems to ensure good air quality.

  • Practice all in/all out animal flow, and avoid resorting, mixing, or moving pigs after placement.

  • Provide adequate space, minimize overstocking of pens, and remove affected pigs if they do not respond to treatment.

  • Implement a herd health program that minimizes Mycoplasma and bacterial coinfections.

  • Closely manage your operation to minimize stressors, such as out-of-feed events.

Remember, if you suspect PCVAD on your farm, you should consult your veterinarian and confirm the diagnosis through laboratory testing.

To review all recommendations by phase of production, you can request a copy of “A Producer’s Guide to Managing PCVAD: Porcine Circovirus Associated Diseases” from the National Pork Board, American Association of Swine Veterinarians, the North Carolina Pork Council, or your local Extension office.

For more information on PCVAD, read the following article:

A Producer's Guide to Managing PCVAD

Reproduced Courtesy

ThePigSite News Desk

5m Editor