| VIRAL ARHERITIS Tenosynovitis Tendinitis Ruptured Tendon syndrome |
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Causative Agent: Reoviridae. |
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Transmission: 1. Vertical. 2. Direct contact between birds. 3. Indirect contract. |
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Incubation Period: 4 to 13 days. |
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Morbidity: 100% 'Broilers). |
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Mortality: Less than 1% (Broilers). 10 to 20% (Layers). |
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Age Group affected: 6 to 7 weeks old birds but older birds could be affected. |
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Signs: 1. Lameness in broilers. 2. Anorexia. 3. Decrease in egg production in layers with increased mortality. |
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Gross Lesions: 1. Tendon sheaths - presence of inflammation. 2. Digital flexor and Metatarsal extensor tendon - presence of swelling. 3. Footpad - swollen with straw-coloured blood-inted exudate. |
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Diagnosis: 1. Clinical signs. 2. Gross and microscopic pathology. 3. Fluorescent Antibody Test. 4. Virus isolation. 5. Virus Neutralization. &. Agar gel immunodiffusion or Precipitation Test. |
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Differential Diagnosis: 1. Malabsorption Syndrome. 2. Staphylococcosis. 3. Infectious Synocitis. |
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Prevention: Vaccination with attenuated vaccine. |
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Control: All-in, all-out procedure in broilers. |
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| Treatment: None. | ||||
Recommended Supportive Medication: None. |
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