Difference between revisions of "Calf Diarrhoea, Undifferentiated Neonatal"

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* A syndrome with many causes.
+
#REDIRECT [[Undifferentiated Neonatal Calf Diarrhoea]]
 
 
=====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|diarrhoea]].
 
** Tends to cover all over tail and hindquarters.
 
*** Often produces skin sores.
 
* Condition is lost quite quickly, and a high mortality may be caused.
 
 
 
=====Pathogenesis=====
 
 
 
* Certain conditions predispose calves to undifferentiated neonatal calf [[Diarrhoea|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|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.
 
 
 
 
 
{| border="1" cellspacing="0" cellpadding="5" align="center"
 
! Virus
 
! % Cases
 
! Bacterium
 
! % Cases
 
|-
 
| [[Reoviridae#Rotaviruses|Rotavirus]]
 
| 40%
 
| [[Cryptosporidium|Cryptosporidium]]
 
| 20%
 
|-
 
| [[Coronaviridae|Coronavirus]]
 
| 20%
 
| [[Escherichia coli|Enterotoxigenic E.Coli]]
 
| 20%
 
|-
 
| [[Herpesviridae|Infectious bovine rhinotracheitis virus]]
 
| 4%
 
| [[Campylobacter species|Campylobacter]]
 
| 30-40%
 
|-
 
| [[Caliciviridae|Calici-]], [[Parvoviridae|parvo-]], [[Adenoviridae|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.[[Category:Enteritis,_Catarrhal]][[Category:Enteritis, Viral]][[Category:Cattle]]
 
[[Category:To_Do_-_Clinical]]
 

Latest revision as of 14:19, 19 August 2010