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===''[[Clostridium perfringens type B]]===
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===''[[Clostridium perfringens type C]]===
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===''C. perfringens'' type C===
 
===''C. perfringens'' type C===
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*Acute enterotoxaemia in adult sheep, 'struck'
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*Sudden death or terminal convulsions in sheep at pasture
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*Beta toxin (lethal, necrotising) plays major role in pathogenesis of the disease - increases intestinal and capillary permeability
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*Also alpha toxin (lecithinase)
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*Post mortem: jejunal ulceration; hyperaemia in small intestine; fluid accumulation in peritoneal cavity; congestion of peritoneal vessels; petechial haemorrhages
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*Haemorrhagic enteritis in piglets
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**Peracute enterotoxaemia often of entire litter with mortality rates 80%
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**Infection from sow's faeces
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**Death within 24 hours in young piglets
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**Chronic disease in older piglets
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**Dullness, anorexia, bloody faeces, perianal hyperaemia
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**Post mortem: necrosis of terminal small intestinal mucosa, caecum and colon and blood-stained contents; serosanguinous fluid in pleural and peritoneal cavities
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*Necrotic enteritis in chickens:
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**Broilers under 12 weeks
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**Acute enterotoxaemia, sudden onset and high mortality
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**Necrosis of small intestine
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**Predisposing factors include diet changes, coccidial infection and intestinal hypomotility
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*Acute enterotoxaemia with haemorrhagic enteritis in calves, lambs, foals, goats
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*[[Peritoneal Cavity Inflammatory - Pathology#In cattle|Peritonitis in cattle]] - sudden death in feedlot cattle
       
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