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Protect your pigs against PRRS (blue ear disease)
Porcine Reproductive and Respiratory Syndrome (PRRS), also named blue ear disease, is one of the most economically significant diseases in the swine industry worldwide due to its impact on pig health and productivity.
PRRS is a highly infectious viral disease, that significantly affects the reproductive and respiratory health of pigs, leading to substantial losses in the swine industry.
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What causes PRRS in pigs?
Porcine Reproductive and Respiratory Syndrome (PRRS) is a highly contagious viral disease that affects pigs. It's caused by the PRRS virus, which belongs to the Arterivirus family.
PRRS exists in two main strains: the European strain (Type 1) and the North American strain (Type 2). Both strains can cause severe reproductive failure in breeding stock and respiratory tract illness in young pigs. The symptoms and severity can vary depending on the strain, but both significantly impact pig health and farm productivity. In addition, PRRS raises sensitivity to other infections, in particular infections caused by respiratory pathogens, Streptococcus suis, and porcine circovirus-2.
You cannot completely control it with a vaccine, as the virus mutates rapidly.
How is the PRRS virus transmitted?
The PRRS virus is highly mutable, which makes it challenging to control and prevent. The virus spreads primarily through:
- Direct Contact: Infected pigs transmit the virus to healthy pigs through close contact.
- Via semen from infected boars
- Airborne Transmission: The virus can spread through the air, especially in densely populated pig farms.
- Contaminated Objects: Transportation vehicles, equipment, and clothing can carry the virus from one location to another.
- Biological Vectors: In some cases, insects like flies can transfer the virus between pigs.
Understanding these transmission routes is crucial for implementing effective biosecurity measures to control and prevent PRRS.
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What are the symptoms of PRRS in pigs?
PRRS gives rise to extremely varied symptoms and also makes pigs more susceptible to infections caused by respiratory pathogens, Streptococcus suis, and porcine circovirus-2. Which can make diagnosis challenging. The clinical symptoms are often not immediately indicative of PRRS. Laboratory diagnosis is needed in addition to the clinical symptoms, with the presence of the virus being shown by a PCR test or antibodies to the virus by an ELISA test.
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- Reproductive issues in sows
- Respiratory problems in young pigs
- Fever
- Reduced Appetite
- Lethargy
- Poor Growth Rates
- Increased Mortality Rates
- Blue Ears
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How can you protect your farm from PRRS?
Farmers can take several proactive steps to protect their pigs from Porcine Reproductive and Respiratory Syndrome (PRRS). This includes taking part in controlled breeding programs, strict biosecurity measures, vaccination and good husbandry are key in preventing the virus.
The 5 steps to prevent PRRS in pigs
Fight PRRS in pigs with these five simple steps. Your actions can protect them.:format(webp))
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