- Also known as black leg
- Acute infectious, toxemic disease of cattle and sheep
- 6 months-2 years of animal are affected any time of season.
- Clostridium chauvoei
- Ingestion of spores contaminated food and water.
- Wound infection.
- Bacteria spore enter through wound à Germinate in intestine and enter into blood circulation à reach to blood vascular system à bacteremia -à under favorable condition, proliferate and release endotoxin à produce systemic toxemia and lead to death
- High fever ( 1060F)
- Swelling in thigh and shoulder muscles
- Initially, swelling is hot and painful to touch and soon becomes cold and painless.
- Produce crepitating sound in pressure
- Mortality 100%, morbidity 20%
- Animal die within 12-48 hrs
- Discharge of blood from orifices, rapid clotting of blood
- Muscles is blackened.
- Skin affected become stiff, black or dark red in color.
- On the basis of history:- vaccination, wound infection, etc.
- Lameness, hot swelling in thigh muscles producing crepitating sound on pressure.
f) Differential diagnosis:
- Anthrax, Black disease, Lead and other chemical poisoning, venomous snake bite
- Antibiotics like penicillin, aureomycin and oxytetracycline can be used.
- Isolation of animal and keep away from infected area
- Burn or bury dead body.
- Don’t allow to remove skin from infected animal
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