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**Beta toxin plays major role in pathogenesis of the disease
**Beta toxin plays major role in pathogenesis of the disease
**Post mortem: jejunal ulceration; hyperaemia in small intestine; fluid accumulation in peritoneal cavity; congestion of peritoneal vessels; petechial haemorrhages
**Post mortem: jejunal ulceration; hyperaemia in small intestine; fluid accumulation in peritoneal cavity; congestion of peritoneal vessels; petechial haemorrhages
**
**Haemorrhagic enteritis in piglets
***Peracute enterotoxaemia often of entire litter with mortality rates 80%
***Infection from sow's faeces
***Death within 24 hours in young piglets
***Chronic disease in older piglets
***Dullness, anorexia, bloody faeces, perianal hyperaemia
***Post mortem: necrosis of terminal small intestinal mucosa, caecum and colon and blood-stained contents; serosanguinous fluid in pleural and peritoneal cavities
**Necrotic enteritis in chickens:
***Broilers under 12 weeks
***Acute enterotoxaemia, sudden onset and high mortality
***Necrosis of small intestine
***Predisposing factors include diet changes, coccidial infection and intestinal hypomotility
*''C. perfringens'' type D:
*''C. perfringens'' type D:
**[[Intestines - Catarrhal Enteritis#"Pulpy Kidney" Disease|Pulpy kidney disease]] in well-fed 3-10 week-old lambs
**[[Intestines - Catarrhal Enteritis#"Pulpy Kidney" Disease|Pulpy kidney disease]] in well-fed 3-10 week-old lambs