Lymphoid leucosis

Lymphoid leucosis is a disease that affects chickens, caused by the retrovirus Avian leukosis virus.

A healthy chicken
For other diseases called leucosis, see leucosis.

It is a neoplastic disease caused by a virus, which may take the form of a tumor of the bursa of Fabricius and may metastasize to other tissues of the chicken and cause enlargement and swelling of the abdomen.

Symptoms

Symptoms include enlargement of abdomen, bursa, weight loss, weakness and emaciation, and depression. The disease is more likely to affect chicken around five to eight months of age who are more vulnerable. Green diarrhea tends to develops at the terminal stage.[1]

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References
  1. "The Poultry Guide - Avian Lymphoid Leukosis". Archived from the original on 2017-12-11. Retrieved 2007-12-12.


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