Metabolic Disease

Ascities is a metabolic disease of poultry associated with inadequate supplies of oxygen, poor ventilation and physiology usually casing pulmonary vasoconstriction. This disease has a complex etiology and is predisposed by the reduced ventilation, high altitude and respiratory disease. Morbidity and mortality ranges around 1-5% and 1-2% respectively.

Clinical signs and symptoms:

  • Sudden deaths in rapidly developing birds.
  • Poor development.
  • Progressive weakness and abdominal distension.
  • Recumbency.
  • Dyspnoea.
  • Possibly cyanosis.

Lesions:

  • Liver enlargement.
  • Spleen small.
  • Ascites.
  • Pericardial effusion.
  • Microscopic – cartilage nodules increased in lung.
  • Thickening of right-side myocardium.
  • Dilation of the ventricle.
  • Thickening of atrioventricular valve.
  • General venous congestion.
  • Severe muscle congestion.
  • Lungs and intestines congested.

Diagnosis:

Diagnosis depends majorly upon the history, clinical findings in correlation to the lesion observed. A cardiac specific protein (Troponin T) may be measured in the blood. This may offer the ability to identify genetic predisposition. Differentiate from broiler Sudden Death Syndrome and bacterial endocarditis.

Treatment:

Improve ventilation, vitamin C supplement , reduce the ration protein ratio. Etc

Prevention:

Improving ventilation, and control over the respiratory disease.

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