Animal Welfare, Ethics and Jurisprudence

SYMPTOMS

Four stages

• Dyspnoea - accumulation of CO₂ in blood affect respiratory centre – Rapid & shallow respiration, rapid pulse and cyanosis.
• Convulsions- clonic convulsion then tonic, ophisthotonus spasm, pupil dilated, heart rate slows.
• Apnoea – unconsciousness.
• Final stage - respiratory paralysis heart may beat.

PM appearance

• Protruded tongue.
• Frothy blood stained fluid in nostrils.
• Congested conjuctiva.
• Laryngeal and tracheal mucosa congested.
• Lungs engorged and oedematous (frothy, dark, coloured blood, exudates).
• Petechial haemorhage of pleura, pericardium, myocardium, endocardium and sometime of brain.
• Cavities of right side heart are engorged with dark coloured, imperfectly clotted blood.
• Left heart are comparatively empty.
• Congestion of abdominal viscera.
• Congested brain and excess serous fluid in the lateral ventricles.
• Cranial sinuses filled with dark – coloured blood.
• Blood dark in colour mostly fluid in the large veins.
• Microscopically lung tissue shows marked dilatation of both the capillaries and veins.