522 bytes added ,  12:52, 17 February 2008
no edit summary
Line 117: Line 117:  
*Bovine [[Intestines - Fibrinous/ Haemorrhagic Enteritis#Salmonellosis|salmonellosis]]:
 
*Bovine [[Intestines - Fibrinous/ Haemorrhagic Enteritis#Salmonellosis|salmonellosis]]:
 
**Syndrome of fever and diarrhoea (with dysentery), often fatal, in calves and adult cattle
 
**Syndrome of fever and diarrhoea (with dysentery), often fatal, in calves and adult cattle
 +
**Abdominal pain in adult cattle due to necrotic bowel
 +
**Recumbency and depression, with death after 7-10 days during severe infection - mortality up to 75% in untreated adult animals
 +
**Antibiotic treatment reduces mortality to 10%
 +
**Diarrhoea lasts for up to 2 weeks, and complete recovery may take months
 
**May cause abortion of pregnant cattle in absence of other signs
 
**May cause abortion of pregnant cattle in absence of other signs
 
**Septicaemia in neonates; accute enteritis in older calves
 
**Septicaemia in neonates; accute enteritis in older calves
 +
**Calves are dull, lethargic, inappetent, pyrexic, with profuse, fowl-smelling diarrhoea
 +
**Death in calves can occur after 2-3 days
 +
**Diarrhoea in survivors may last 2 weeks
 
**Caused by infection with various ''Salmonella'' serotypes, e.g. ''S.'' Dublin and ''S.'' Typhimurium  
 
**Caused by infection with various ''Salmonella'' serotypes, e.g. ''S.'' Dublin and ''S.'' Typhimurium  
 
**An important zoonosis and reportable
 
**An important zoonosis and reportable
Line 126: Line 133:  
***Can cause fatal septicaemia - fever, depression, drop in milk yield; calves may develope arthritis, meningitis, pneumonia
 
***Can cause fatal septicaemia - fever, depression, drop in milk yield; calves may develope arthritis, meningitis, pneumonia
 
***Abortion with no other clinical signs  
 
***Abortion with no other clinical signs  
***Chronic infections with ''S.'' Dublin in calves cause dry gangrene of extremities due to disseminated intravascular coagulation
+
***Chronic infections with ''S.'' Dublin in calves cause dry gangrene of extremities due to disseminated intravascular coagulation; tips of ears, tail and limbs may slough
 
***Can cause [[Bones - inflammatory#Osteomyelitis|Osteomyelitis]] in young animals
 
***Can cause [[Bones - inflammatory#Osteomyelitis|Osteomyelitis]] in young animals
 
***Most survivors become subclinical excretors
 
***Most survivors become subclinical excretors
 
***May become latent carriers with no excretion
 
***May become latent carriers with no excretion
*[[Intestines - Fibrinous/ Haemorrhagic Enteritis#Salmonellosis|salmonellosis]] in poultry:
+
*[[Intestines - Fibrinous/ Haemorrhagic Enteritis#Salmonellosis|Salmonellosis]] in poultry:
 
**''S.'' Pullorum and ''S.'' Gallinarum now rare in UK due to eradication programs including the Pullorum test (whole blood slide agglutination to detect antibody to both ''S.'' Pullorum and ''S'' Gallinarum)
 
**''S.'' Pullorum and ''S.'' Gallinarum now rare in UK due to eradication programs including the Pullorum test (whole blood slide agglutination to detect antibody to both ''S.'' Pullorum and ''S'' Gallinarum)
 
**These ''Salmonellae'' can infect the ovaries of hens and be transmitted via eggs
 
**These ''Salmonellae'' can infect the ovaries of hens and be transmitted via eggs
462

edits