Infectious Anaemia ✍ is caused by a very resistant small virus known as CAV (Chicken Anaemia Virus).
Transmission ✍ The major mode of transmission of infectious anemia is vertical transmission from infected breeder hens.
✍ Horizontal transmission from bird to bird or by infected equipment, clothing.
Clinical signs and lesions✍ more commonly weeks of age.
✍ Adult birds not develop clinical signs.
✍ haematopoietic tissues in the bone marrow.
✍ Subcutaneous and intramuscular haemorrhages can be found accompanied with atrophy of the lymphoid system.
✍ Affected birds may show focal skin lesions (also known as blue wing disease).
✍ Mortality rates vary from 20 % to 70 %.
Diagnosis:- - based on the clinical signs and pathological findings in affected birds.
- Blood serum testing for specific CAV antibodies can be carried out (IFT, VN, ELISA).
- Virus isolation is also possible
Treatment and control - No treatment is available
- Maternally vaccines
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