Saturday, 16 June 2012

Marek's Disease

Marek's Disease

The disease is caused by a virus which is spread from an infected chicken to a non-infected one through the air, poultry dust, by contact, sometimes faeces. Greatest susceptibility from 6-26 weeks of age.

Symptoms:

Paralysis of legs and/or wings

Laboured breathing

Whistling and circling movements

Unilateral and bilateral blindness.

On postmortem examination whitish nodules in muscles of thigh, neck, kidneys, testes and in ovaries are seen.

Control Measures:

Immunisation of birds by using vaccines

Procure genetically resistant chicks

Super sanitation.

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