Difference between revisions of "Lamb Dysentery"
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(moved Lamb Dysentery to Clostridium perfringens type B over redirect) |
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| − | + | ==(Enterotoxaemia with Blood)== | |
| + | |||
| + | * [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] causes very severe acute haemorrhagic enteritis. | ||
| + | ** Usually affects young farm animals | ||
| + | *** May also be seen in pets. | ||
| + | * Type B [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] infection of lambs leads to '''lamb dysentery'''. | ||
| + | |||
| + | ====Clinical==== | ||
| + | |||
| + | * Lamb dysentery is usually seen in lambs under 2 weeks of age. | ||
| + | ** Related to being kept in a cold, dirty environment, with build-up of infection during the lambing season. | ||
| + | * Lambs may produce bloodstained [[Intestine Diarrhoea - Pathology|diarrhoea]] before death, but they often die before this effect is apparent. | ||
| + | * Diagnosed by culturing contents of gut. | ||
| + | |||
| + | ====Pathology==== | ||
| + | |||
| + | =====Gross===== | ||
| + | |||
| + | * The gut is blown and distended with foamy ,bloody contents. | ||
| + | * Sometimes ulceration with perforation and fibrinousperitonitis is seen. | ||
| + | * Focal or diffuse congestion and haemorrhages. | ||
| + | |||
| + | =====Histological===== | ||
| + | |||
| + | *Coagulative necrosis of villi. | ||
| + | * Oedema. | ||
| + | * Haemorrhage. | ||
| + | * Influx of inflammatory cells in the lamina propria and submucosa. | ||
| + | |||
| + | |||
| + | ====Similar Conditions==== | ||
| + | |||
| + | * '''Piglets''' show similar disease caused by [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] type C (and sometimes type B) | ||
| + | ** May look similar to a volvulus but with no twist present. | ||
| + | * In '''adult sheep''' [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] type B infection causes '''Struck'''. | ||
| + | ** Enterotoxigenic gastritis. | ||
| + | ** Acute sudden death with haemorrhagic enteritis | ||
| + | ** Haemorrhagic enteritis is not as severe as in lambs, and tends to be more patchy. | ||
| + | [[Category:Enteritis,_Bacterial]][[Category:Enteritis,_Fibrinous/Haemorrhagic]] | ||
Revision as of 21:39, 1 June 2010
(Enterotoxaemia with Blood)
- Clostridium perfringens causes very severe acute haemorrhagic enteritis.
- Usually affects young farm animals
- May also be seen in pets.
- Usually affects young farm animals
- Type B Clostridium perfringens infection of lambs leads to lamb dysentery.
Clinical
- Lamb dysentery is usually seen in lambs under 2 weeks of age.
- Related to being kept in a cold, dirty environment, with build-up of infection during the lambing season.
- Lambs may produce bloodstained diarrhoea before death, but they often die before this effect is apparent.
- Diagnosed by culturing contents of gut.
Pathology
Gross
- The gut is blown and distended with foamy ,bloody contents.
- Sometimes ulceration with perforation and fibrinousperitonitis is seen.
- Focal or diffuse congestion and haemorrhages.
Histological
- Coagulative necrosis of villi.
- Oedema.
- Haemorrhage.
- Influx of inflammatory cells in the lamina propria and submucosa.
Similar Conditions
- Piglets show similar disease caused by Clostridium perfringens type C (and sometimes type B)
- May look similar to a volvulus but with no twist present.
- In adult sheep Clostridium perfringens type B infection causes Struck.
- Enterotoxigenic gastritis.
- Acute sudden death with haemorrhagic enteritis
- Haemorrhagic enteritis is not as severe as in lambs, and tends to be more patchy.