Poultry diseases and treatment
Dr. Mujeeb Ather Asst. Director (Pathologist)
Veterinary Biological Research Institute, Hyderabad .
Causative agent - C.septicum, C.perfringens type A, Staphylococcus aureus, either single or in combination.
SIGNS
- Depression, incordination of movements, inappetance, leg weakness and ataxia.
- Dark moist areas under the skin are seen in wings, briars abdomen, legs and face.
- Extensive blood tinged oedema under affected skin
- Muscular discoloration, gray or tan.
- Subcutaneous tissue containing emphysema and serosanguineous fluid.
- No internal lesions but occasionally white foci on liver.
- Small flaccid bursa usually followed by infectious bursal disease.
DIAGNOSIS
- By gross lesions.
- Avian Adenovirus Chicken Anemia Agent and Reovirus must be determined as these are predisposing factors for gangrenous dermatitis.
- Dermatitis is also caused by mycotic agents and must be differentiated.
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