Special Veterinary Pathology

CONTAGIOUS CAPRINE PLEUROPNEUMONIA

Definition

• More acute contagious disease causing heavy mortality in goats characterized by involvement of upper respiratory tract, pronounced exudation in the chest cavity and pericarditis caused by Borrelomyces peripneumoniae capri or Mycoplasma mycoides var capri .

Clinical lesions

• Dyspnoea, nasal discharge watery in early stages which turns mucopurulent in later

Lesions

• Rhinitis, unilateral(usually), fibrinous pleuropneumonia, pleurisy, pericarditis
• Marbling is not marked and sequestration is not a feature
• Oedematous fluid in the chest is abundant and tends to clot on exposure to atmosphere.

Diagnosis

• Symptoms and lesions
• Isolation of organisms from oedema fluid
• Subcutaneous inoculation of lymph into healthy goats results in oedematous local swelling