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Category:Enteritis, Catarrhal (view source)

Revision as of 13:43, 1 June 2010

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* Internally, the mucosa is oedematous with a mucoid appearance.

* The exudate is initially thin and watery (i.e. serous).

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** The exudate becomes more mucoid and cellular as the condition progresses.~~[[Image:trichuris ovis.jpg|thumb|right|150px|Trichuris ovis in the sheep caecum (Courtesy of Bristol BioMed Image Archive)]]~~

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** The exudate becomes more mucoid and cellular as the condition progresses.

*** Mucus coats the epithelial surface of the gut.

** As polymorphs enter the bowel contents, they may become quite opaque (i.e. mucopurulent).

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** Mucosa may appear quite shiny.

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==~~Parasites==~~

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==[[Enteritis, Parasitic]]==

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[[~~Image:trichuris vulpis caecum.jpg|thumb|right|150px|Trichuris vulpis in the caecum (Courtesy of Bristol BioMed Image Archive)~~]]

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* This is the most important condition causing cattarhal enteritis worldwide.

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* Seen mainly in grazing animals.

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** Especially in sheep - causes large production losses.

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* Particularly problematic since some parasites are resistant to anthelmintics.

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** Especially in Australia.

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* A pre-patent period of 7-10 days is followed by the development of greenish [[Intestine Diarrhoea - Pathology|diarrhoea]].

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** The gut becomes filled with greenish soupy material.

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** Oedema and hyperaemia of mucosa occurs.

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* In young animals, parasites can cause serious disease and even death.

==Mixed viral enteritis==

Bara

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