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Created page with "* Known as "salt poisoning". * Occurs sporadically in the U.K. as a group or herd problem in intensive systems. * Mainly affects pigs and poultry. * Caused by: ** Accidental i..."
* Known as "salt poisoning".
* Occurs sporadically in the U.K. as a group or herd problem in intensive systems.
* Mainly affects pigs and poultry.
* Caused by:
** Accidental ingestion of excess salt
*** Either by dietary contamination, or error.
** Deprivation of water on relatively high salt diets.
*** This is the more likely scenario.
* Salt poisioning may be
** Peracute/ acute
** Subacute/ chronic
====Peracute / acute====
* Peracute cases are often found dead.
** Only shock haemorrhages are seen at autopsy.
* Acute cases present as abdominal pain, diarrhoea and vomiting.
** Death occurs in 24 - 48 hours.
** At autosy, may see:
*** Shock haemorrhages.
*** Gut congestion.
*** Fluid accumulations in body cavities.
====Subacute / chronic====
* These cases show nervous signs.
** Convulsions
** Blindness
** Ataxia
* Show excessive salivation.
* May be polyuric.
* Fluid may accumulate subcutaneouslt and in the abdomen.
* Macroscopic findings are inconclusive.
====Diagnosis====
* For definitave diagnosis, histological examination is required.
* On histological examination, the following may be seen:
** Perineuronal vasculation and cerebral neuronal necrosis.
*** '''Polio-encephalomalacia'''.
** Eosinophilic meningoencephalitis.
** Perivascular oedema in the brain.
[[Category:Circulatory Disorders - Pathology]]
* Occurs sporadically in the U.K. as a group or herd problem in intensive systems.
* Mainly affects pigs and poultry.
* Caused by:
** Accidental ingestion of excess salt
*** Either by dietary contamination, or error.
** Deprivation of water on relatively high salt diets.
*** This is the more likely scenario.
* Salt poisioning may be
** Peracute/ acute
** Subacute/ chronic
====Peracute / acute====
* Peracute cases are often found dead.
** Only shock haemorrhages are seen at autopsy.
* Acute cases present as abdominal pain, diarrhoea and vomiting.
** Death occurs in 24 - 48 hours.
** At autosy, may see:
*** Shock haemorrhages.
*** Gut congestion.
*** Fluid accumulations in body cavities.
====Subacute / chronic====
* These cases show nervous signs.
** Convulsions
** Blindness
** Ataxia
* Show excessive salivation.
* May be polyuric.
* Fluid may accumulate subcutaneouslt and in the abdomen.
* Macroscopic findings are inconclusive.
====Diagnosis====
* For definitave diagnosis, histological examination is required.
* On histological examination, the following may be seen:
** Perineuronal vasculation and cerebral neuronal necrosis.
*** '''Polio-encephalomalacia'''.
** Eosinophilic meningoencephalitis.
** Perivascular oedema in the brain.
[[Category:Circulatory Disorders - Pathology]]