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*''Eimeria tenella''
 
*''Eimeria tenella''
**Swollen caeca
+
**Swollen [[Caecum - Anatomy & Physiology|caeca]]
 
**Thickening of wall
 
**Thickening of wall
 
**Dark colouring containing a core of necrotic tissue and blood
 
**Dark colouring containing a core of necrotic tissue and blood
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**2 important pathogenically
 
**2 important pathogenically
   −
*''Eimeria'' in caeca causes petechial haemorrhages and caseous caecal cores
+
*''Eimeria'' in [[Caecum - Anatomy & Physiology|caeca]] causes petechial haemorrhages and caseous [[Caecum - Anatomy & Physiology|caecal]] cores
    
*''Eimeria'' in the anterior and mid-intestine causes necrotic enteritis and petechial haemorrhages
 
*''Eimeria'' in the anterior and mid-intestine causes necrotic enteritis and petechial haemorrhages
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*3 ''Eimeria'' species
 
*3 ''Eimeria'' species
   −
*2 intestinal species causing macroscopic lesions in kidney tubules
+
*2 intestinal species causing macroscopic lesions in [[Urinary System - Anatomy & PhysiologyThe Kidney|kidney tubules]]
 
**Oocysts carried in urine and pass out with faeces
 
**Oocysts carried in urine and pass out with faeces
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*Causes severe enteritis and mortality in ducklings
 
*Causes severe enteritis and mortality in ducklings
**Haemorrhages and pale  focal lesions in small intestine  
+
**Haemorrhages and pale  focal lesions in [[Small Intestine - Anatomy & Physiology|small intestine]]
    
===Coccidia of Game Birds===
 
===Coccidia of Game Birds===
 
*3 main species
 
*3 main species
   −
*Caecal species most pathogenic causing white caecal cores
+
*[[Caecum - Anatomy & Physiology|Caecal]] species most pathogenic causing white [[Caecum - Anatomy & Physiology|caecal]] cores
    
==Coccidia of Cattle==
 
==Coccidia of Cattle==
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*''Eimeria bovis''
 
*''Eimeria bovis''
**Endogenous stages in central lacteal of villi and epithelial cells of caecum and colon
+
**Endogenous stages in central lacteal of villi and epithelial cells of [[Caecum - Anatomy & Physiology|caecum]] and [[Colon - Anatomy & Physiology|colon]]
 
**Causes [[Intestine Diarrhoea - Pathology|diarrhoea]] and enteritis
 
**Causes [[Intestine Diarrhoea - Pathology|diarrhoea]] and enteritis
 
**Oocysts are 28x20μm
 
**Oocysts are 28x20μm
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*''Eimeria zuernii''
 
*''Eimeria zuernii''
**Endogenous stages in connective tissue of lamina propria of the lower small intestine and in the epithelial cells of the caecum and colon
+
**Endogenous stages in connective tissue of lamina propria of the lower [[Small Intestine - Anatomy & Physiology|small intestine]] and in the epithelial cells of the [[Caecum - Anatomy & Physiology|caecum]] and [[Colon - Anatomy & Physiology|colon]]
 
**More pathogenic than ''Eimeria bovis''
 
**More pathogenic than ''Eimeria bovis''
 
**Causes blood stained dysentry, tenesmus and sloughed mucosa
 
**Causes blood stained dysentry, tenesmus and sloughed mucosa
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*Post-mortem
 
*Post-mortem
**Diffuse inflammation and thickening of caecal mucosa (and sometimes ileal and colonic mucosa)
+
**Diffuse inflammation and thickening of [[Caecum - Anatomy & Physiology|caecal]] mucosa (and sometimes [[Ileum - Anatomy & Physiology|ileal]] and [[Colon - Anatomy & Physiology|colonic]] mucosa)
 
**Masses of gamonts and oocysts in scrapings
 
**Masses of gamonts and oocysts in scrapings
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==Coccidia of Rabbits==
 
==Coccidia of Rabbits==
 
*3 pathogenic ''Eimeria'' species
 
*3 pathogenic ''Eimeria'' species
**2 in the caecum
+
**2 in the [[Caecum - Anatomy & Physiology|caecum]]
 
**1 in the bile duct
 
**1 in the bile duct
    
*''Eimeria steidae''
 
*''Eimeria steidae''
 
**Parasitises the bile duct epithelium
 
**Parasitises the bile duct epithelium
**Travels via the bile duct to the liver where it forms large white nodules
+
**Travels via the bile duct to the [[Liver - Anatomy & Physiology|liver]] where it forms large white nodules
 
**Oocysts travel in the bile and are passed out in the faeces
 
**Oocysts travel in the bile and are passed out in the faeces
 
**Causes ascites, [[Intestine Diarrhoea - Pathology|diarrhoea]], weight loss and polyuria
 
**Causes ascites, [[Intestine Diarrhoea - Pathology|diarrhoea]], weight loss and polyuria
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