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How to prevent Chicken Anemia Virus (CAV) on your poultry farm
Chicken Anemia Virus (CAV) is a serious condition that affects young chicks by weakening their immune system.
With the right prevention—like vaccination, hygiene, and biosecurity—you can reduce the risk and keep your birds healthy.
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Cause of Chicken Anemia Virus (CAV)
CAV is caused by the Chicken Anemia Virus, a highly contagious circovirus. It primarily affects young chicks, especially those under two weeks old, by attacking their bone marrow and immune system. This leaves them weak and susceptible to secondary infections, making early prevention critical.
The virus spreads through two main routes:
- Vertical transmission: Infected hens pass the virus to their eggs, affecting chicks before they even hatch.
- Horizontal transmission: Chicks pick up the virus from infected birds, contaminated feed, water, or even farm equipment.
How does the Chicken Anemia Virus (CAV) spread?
CAV spreads easily in poultry farms, especially those with poor biosecurity measures. Here’s how it moves:
- Direct contact: Healthy birds get infected when exposed to sick birds.
- Contaminated surfaces: Equipment, litter, and even farmworkers can carry the virus between flocks.
- Poor hygiene: Unclean water, dirty housing, and reused litter increase the risk of infection.
- Stress factors: Overcrowding, poor nutrition, and harsh environmental conditions weaken birds, making them more susceptible.
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What are the symptoms of the Chicken Anemia Virus?
CAV isn’t always easy to spot early on, but knowing the signs can save your flock. Watch out for:
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- Pale combs and wattles
- Loss of appetite
- Weakness
- Slow growth
- Anemia (visible as pale skin and mucous membranes)
- Bleeding under the skin or in muscles
How to protect poultry from Chicken Anemia Virus (CAV)
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Vaccination
Make sure breeder hens are vaccinated before they start laying. This protects the chicks through the egg. Talk to your vet about the right timing and vaccine.:format(webp))
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