AVIAN INFLUENZA: RECOGNIZING THE SIGNS AND EFFECTIVE IMMUNITY-BOOSTING SOLUTIONS FOR POULTRY
What Is Avian Influenza?
Avian influenza, commonly known as bird flu, is a highly contagious infectious disease caused by Influenza A viruses that affect poultry species such as chickens, ducks, muscovy ducks, geese, quails, and other birds. It is one of the most serious diseases in the poultry industry due to its rapid transmission rate, significant economic losses, and impact on sustainable poultry production.
Common avian influenza virus strains include H5N1, H5N6, H5N8, and H9N2. Among them, H5N1 is considered highly pathogenic and has been responsible for numerous outbreaks in Vietnam and many countries worldwide.
Causes of Avian Influenza
Avian influenza viruses can spread through various transmission routes, including:
Direct contact with infected or carrier birds.
Exposure to contaminated feed, drinking water, or feces.
Farming equipment and transportation vehicles that are not properly disinfected.
Wild birds carrying the virus into poultry farms.
Farm workers moving between poultry houses without following biosecurity measures.
The virus can survive for extended periods in humid and cold environments, making outbreaks more likely when farm management practices are inadequate.
Signs and Symptoms of Avian Influenza
Poultry infected with avian influenza may exhibit the following symptoms:
Respiratory Symptoms
Coughing and wheezing.
Nasal discharge.
Sneezing.
Difficulty breathing or rapid breathing.
General Symptoms
High fever.
Reduced feed intake or loss of appetite.
Increased water consumption.
Lethargy and reduced activity.
Poor weight gain.
Characteristic Symptoms
Bluish discoloration of combs and wattles.
Swelling of the head and face.
Hemorrhages in the legs, skin, or internal organs.
Decreased egg production in laying hens.
Sudden increase in mortality rates.
For highly pathogenic strains, mortality rates can reach 80–100% if the disease is not detected and controlled promptly.
Impact of Avian Influenza
Avian influenza causes more than just high mortality rates. It can significantly affect poultry production by:
Causing substantial economic losses due to flock mortality.
Increasing costs associated with treatment, culling, and restocking.
Reducing growth performance and reproductive efficiency.
Disrupting poultry trade and export activities.
Posing potential public health risks, as certain strains may infect humans.
Effective Prevention of Avian Influenza
Vaccinate Poultry According to Schedule
Vaccination is one of the most effective methods for reducing disease risk and minimizing losses during outbreaks. Farmers should follow vaccination schedules recommended by veterinary authorities.
Implement Strict Biosecurity Measures
Clean poultry houses regularly.
Apply routine disinfection programs.
Control access of people and vehicles entering farm areas.
Quarantine newly introduced birds.
Properly manage and dispose of waste.
Strengthen the Immune System of Poultry
In addition to vaccination, maintaining a strong natural immune system plays a critical role in preventing avian influenza.
Poultry often experience immune suppression during periods of weather changes, transportation, high stocking density, vaccination, or recovery from illness. When immunity is compromised, viruses and opportunistic pathogens can more easily infect the flock.
As a result, many farms supplement poultry diets with Beta-Glucan products to support and enhance natural immune responses.
Immune Support Solution with VIETVET BETA-GLUCAN 50
One of the products commonly used to support poultry immunity is BETA-GLUCAN 50 by VIETVET.
This product contains highly purified Beta-Glucan, a natural immunomodulator that stimulates immune cell activity and enhances the body's defense mechanisms against disease-causing pathogens.
Key Benefits
Supports and strengthens the natural immune system.
Enhances resistance during periods of weather fluctuations.
Helps reduce stress caused by transportation, relocation, or vaccination.
Supports improved vaccine response.
Assists recovery after illness and during critical growth stages.
When Should BETA-GLUCAN 50 Be Used?
The product is recommended for use in the following situations:
Before and after vaccination.
During seasonal changes or adverse weather conditions.
During the brooding period of young chicks.
After transportation or environmental changes.
When poultry show signs of weakened immunity.3
Farmers can learn more and explore related products here. See more: …
It is important to note that BETA-GLUCAN 50 is not a treatment for avian influenza. Instead, it serves as an immune-support solution that helps improve overall health, reduce disease susceptibility, and enhance disease prevention programs.
What Should Farmers Do If Avian Influenza Is Suspected?
If poultry exhibit signs of avian influenza, farmers should:
Immediately isolate suspected birds.
Suspend poultry transportation and trading activities.
Notify local veterinary authorities.
Thoroughly clean and disinfect affected areas.
Avoid selling, slaughtering, or disposing of sick birds improperly.
Early detection and proper response are essential for minimizing disease spread and economic losses.
Avian influenza remains one of the most significant threats to the poultry industry, particularly in areas with high farming density. Effective disease prevention requires a combination of vaccination, biosecurity measures, and strategies to strengthen flock immunity.
Products that support immune health, such as VIETVET BETA-GLUCAN 50, can serve as valuable complementary tools to help poultry maintain optimal health, improve resilience against disease challenges, and contribute to more sustainable and profitable poultry production.
Farmers can learn more and explore related products here. See more: …
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