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Newcastle disease
I gave lasota vaccine to my broilers at day 10 and 20 respectively, but at 6 weeks, I started seeing symptoms of newcastle disease. Green poo everywhere and lost of appetite. few mortalities are recorded already. Pls what could have happened and what can I do?
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4 Replies
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It sounds like your broilers are experiencing a case of Newcastle Disease, despite being vaccinated with LaSota at 10 and 20 days. Here’s what could have happened and what you can do:
Possible Reasons for Vaccine Failure:
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Maternal Antibody Interference:
Young chicks may have maternal antibodies (from their mothers) that can interfere with the vaccine’s effectiveness during the first few weeks of life.
Vaccine Strain and Pathogen:
Different strains of Newcastle Disease exist, and your flock may be facing a strain different from the one in the LaSota vaccine.
Poor Vaccination Practices:
Ensuring proper vaccine storage, dilution, and delivery is crucial.
Stress and Co-Infections:
Stress from vaccination or co-infection with other diseases can weaken the immune system and make the birds more susceptible to NDV.
Vaccine Contamination:
Contamination of the vaccine with other pathogens could weaken its effectiveness.
What You Can Do:
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- Isolate and Quarantine: Separate sick birds from healthy ones immediately to prevent further spread.
- Contact Veterinarian: A veterinarian can help diagnose the specific Newcastle Disease strain and recommend appropriate treatment and control measures.
- Improve Biosecurity: Enhance biosecurity measures on your farm to prevent further introduction of diseases.
- Monitor Birds Carefully: Keep a close watch on the flock for signs of the disease.
- Manage the Environment: Ensure proper ventilation and temperature control to reduce stress on the birds.
- Provide Supportive Care: Offer clean water and feed to support their recovery.
- Avoid Further Vaccination: If there’s an outbreak, avoid further LaSota vaccinations unless specifically advised by a veterinarian, as it might not be effective in this situation.
Important Notes:
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- Newcastle Disease can be highly contagious, so prompt action is crucial.
- Vaccination is the primary method of preventing Newcastle Disease.
- In some cases, infected birds may need to be culled to prevent the spread of the disease
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Absolutely right
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Newcastle disease prevention and control,
You can help prevent this disease by : Considering vaccinating your animals against the disease – speak to your vet for advice. Practice strict biosecurity on your premises,Prevent biosecurity and welfare impacts on poultry and captive birds.
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Probably Newcastle Disease (ND) outbreak
1. Vaccine failure due to storage or incorrect handling techniques.
2. Weakened Immunity from other diseases or stress, poor nutrition or overcrowding.
What to do:
1. Isolate sick birds.
2. Supportive therapy – electrolytes and multivitamins, ensure balanced diet feed and clean water.
3. Boost immunity with herbal or natural remedies such as garlic, ginger e.t.c.
4. Biosecurity and disinfection.
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