Veterinary Clinical Medicine-I (General and Systemic)

ATROPHIC RHINITIS

Atrophic Rhinintis

• One of the causes of Atrophic Rhinitis is atrophy of the turbinates. Pure B. bronchiseptica infections are self-limiting. (lesions heal and there is little to no effect on performance or growth).
• Piglets infected soon after birth from carrier dam. When infected with pasteurella multocida, will result in atrophy of the nasal turbinates. B. bronchiseptica also causes whooping cough.Carried in the nasal cavity of an asymptomatic carrier sow. Horizontal transmission among piglets may occur.
•  Clinical disease occur in very young piglets. The organism colonizes bronchi and bronchioles. Endotoxins and exotoxins diffuse into the lung tissue causing vascular damage and fibrosis. Mortality up to 30%. Anterioventral hemorrhagic consolidation in a lobular pattern (checkerboard).
•  Diagnosis: bacterial culture.
• Treatment with oxytetracycline, sulfonamides and others.