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Avian Pasteurellosis, Cholera, Avian Hemorrhagic Septicemia
Affected | History | Diagnostic Findings | Tests used | Ref |
---|---|---|---|---|
18-week old turkeys | History of difficulty walking, recumbency, and increased mortality, with no respiratory signs. | Severe keel bursitis and synovitis of the hock joints, where P. multocida was isolated. | Necropsy; bacterial culture | CAHFS Connection, October 2016 |
Eight adult Rhode Island Red laying hens from a small commercial free range flock | History of listlessness and death | Fbrinous coelomitis, perioophoritis, multifocal hepatitis and splenitis. Isolation of P. multocida. | Necropsy; bacterial culture | CAHFS Connection, August 2015 |
Multiple 10-week-old turkeys | Presence of airsacculitis, pneumonia, splenitis, and arthritis. P. multocida was isolated from multiple tissues. | Necropsy; bacterial culture | CAHFS Connection, January 2017 | |
18-week-old chukar partridge flock | 5-7% mortality for 3 consective days. | Mild splenomegaly with multiple pale foci and subtle hepatitis. Large numbers of P. multocida isolated from the liver, kidney, and spleen. | Necropsy; histopathology; bacterial culture | CAHFS Connection, October 2013 |
10-week-old pheasants | Clinical signs of swollen legs and hocks. History of increased mortality in the flock. | Septicemia; swollen and mottled spleen, dark red and mottled liver, dark red lungs, caseous exudate in the bursa of Fabricius, and dark red and edematous testes were seen in some birds. P. multocida was isolated from the hock, spleen, and liver. | Necropsy; histopathology; bacterial culture | CAHFS Connection, February 2013 |
Flock of 12-week-old crossbred commerical laying hens | Increased mortality | Necropsy revealed marked pericarditis and oophoritis, with mild enlargement of the spleen. P. multocida was cultured from the ova, pericardium, and liver. Enrichment culture for Salmonella was negative. | Necropsy; bacterial culture | New Zealand Veterinary Journal, Quarterly review of diagnostic cases, January to March 2016 |
Adult laying hens on a free-range farm | History of recent flooding of the paddock. Clinical signs consisted of sudden death, and increased mortality rate. | All hens were laying but the developing ovules were large and flaccid with empty oviducts. The lungs were normal in the majority of the birds but in one they were slightly larger, very congested and haemorrhagic. Cultures of the lung from this bird and from the bone marrow and liver in the other birds revealed the presence of P. multocida. | Necropsy; bacterial culture | New Zealand Veterinary Journal, Quarterly review of diagnostic cases, January to March 2016 |
44-week-old brown laying hens from a commerical flock | Increased mortality over a one-week period and decreased egg production. | Necropsy revealed evidence of coalescing regions of splenic necrosis, multifocal to coalescing hepatic necrosis, and bacterial endocarditis. Culture of the spleen revealed the presence of P. multocida. | Necropsy; bacterial culture | New Zealand Veterinary Journal, Quarterly review of diagnostic cases, July to Sept 2016 |
Name | Summary | |
---|---|---|
Supportive care | Isolate the bird from the flock and place in a safe, comfortable, warm location (your own chicken "intensive care unit") with easy access to water and food. Limit stress. Call your veterinarian. | |
Sensitivity testing | Important due to emergence of multiresistant strains of bacteria | |
Sulfamethazine | Administered by mouth, in accordance with manufacturers directions | |
Tetracycline antibiotics | Administered in drinking water, in accordance with manufacturer directions | |
Norfloxacin | Administered via drinking water. Note Many countries do not allow the use of quinolones in food-producing animals, including poultry, because of the risk of the development of drug resistance | |
Penicillin | Often effective for sulfa-resistant infections | |
Oxytetracycline | Administered in the water, in accordance with manufacturer directions. | |
Doxycycline (given orally) | 20 mg/kg administered orally, once a day | K Marx |
Doxycycline (added to drinking water) | 0.1 g/L or 10 mg/kg added to drinking water | K Marx |
Winter | Spring | Summer | Autumn |
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