Difference between revisions of "Calf Diarrhoea, Undifferentiated Neonatal"
Jump to navigation
Jump to search
(Created page with '* A syndrome with many causes. =====Clinical===== * Is seen mostly in calves between 1 and 28 days old. * Known as "white scour". * Has a high morbidity in calves that are doin…') |
m (Text replace - 'Intestine Diarrhoea - Pathology' to 'Diarrhoea') |
||
| Line 6: | Line 6: | ||
* Known as "white scour". | * Known as "white scour". | ||
* Has a high morbidity in calves that are doing well and feeding well. | * Has a high morbidity in calves that are doing well and feeding well. | ||
| − | * Large amounts of milk coloured [[ | + | * Large amounts of milk coloured [[Diarrhoea|diarrhoea]]. |
** Tends to cover all over tail and hindquarters. | ** Tends to cover all over tail and hindquarters. | ||
*** Often produces skin sores. | *** Often produces skin sores. | ||
| Line 13: | Line 13: | ||
=====Pathogenesis===== | =====Pathogenesis===== | ||
| − | * Certain conditions predispose calves to undifferentiated neonatal calf [[ | + | * Certain conditions predispose calves to undifferentiated neonatal calf [[Diarrhoea|diarrhoea]]. |
** Stress | ** Stress | ||
** Insufficient colostrum | ** Insufficient colostrum | ||
| Line 21: | Line 21: | ||
* A mixture of viruses and bacteria are involved, some more commonly than others. | * A mixture of viruses and bacteria are involved, some more commonly than others. | ||
| − | ** Undifferentiated neonatal calf [[ | + | ** Undifferentiated neonatal calf [[Diarrhoea|diarrhoea]] is, however, '''a primarily viral disease'''. |
** Some of the agents below are also found also in perfectly normal calves. | ** Some of the agents below are also found also in perfectly normal calves. | ||
*** Other viruses not listed are also probably involved. | *** Other viruses not listed are also probably involved. | ||
Revision as of 19:21, 6 June 2010
- A syndrome with many causes.
Clinical
- Is seen mostly in calves between 1 and 28 days old.
- Known as "white scour".
- Has a high morbidity in calves that are doing well and feeding well.
- Large amounts of milk coloured diarrhoea.
- Tends to cover all over tail and hindquarters.
- Often produces skin sores.
- Tends to cover all over tail and hindquarters.
- Condition is lost quite quickly, and a high mortality may be caused.
Pathogenesis
- Certain conditions predispose calves to undifferentiated neonatal calf diarrhoea.
- Stress
- Insufficient colostrum
- Cold milk
- Mixing strange calves together after separating from mother.
- A mixture of viruses and bacteria are involved, some more commonly than others.
- Undifferentiated neonatal calf diarrhoea is, however, a primarily viral disease.
- Some of the agents below are also found also in perfectly normal calves.
- Other viruses not listed are also probably involved.
- The exact cause is not always important, since are cases all treated in the same way.
| Virus | % Cases | Bacterium | % Cases |
|---|---|---|---|
| Rotavirus | 40% | Cryptosporidium | 20% |
| Coronavirus | 20% | Enterotoxigenic E.Coli | 20% |
| Infectious bovine rhinotracheitis virus | 4% | Campylobacter | 30-40% |
| Calici-, parvo-, adeno-, viruses | 1% each |
- The condition has a very characteristis appearance on post mortem examination.
- The intestine is filled with gas and foam, and possibly flakes of milk.