Coccidiosis Flashcards
What are the main life cycle stages of protozoan?
Zygote, Sporozoites, Merozoites, Gameotocytes
What are the 3 main coccidian that infect cattle and which is more pathogenic?
Eimeria Bovis, E. Alabamesis and E.Zuernii. E.Zuernii is the most pathogenic.
Where are coccidia found?
Gastrointestinal tract
What coccidia effect calves turned out in spring?
E. alabamensis.
What is the clinical signs of coccidiosis in cattle?
Diarrhoea, blood, weight loss. On post mortem inflammation and thickening of caecum, ilium and colon.
What 2 species of coccidia are of clinical importance in sheep and when are they seen?
E. Ovinoidalis and E. Crandalis. Commonly seen in young lambs as ewes are immune carriers.
What species of coccidia is clinically significant in pigs?
Isospora suis as it causes profuse diarrhoea in unweaned piglets.
What is the lifecycle of coccidiosis in cattle
Birds ingests oocysts. Oocysts release oocytes. 3-4 stages of sexual schizogony. Sexual development stage of gametogeny. Oocyst shed in faeces.
What must oocysts go through to become infective?
Asexual division (sporogony or sporulation)
What are the two main species in the malabsorption group of avian cocciosis?
E. acervulina and E.Maxima
What are the 3 main species in the haemorrhagic group of avian coccidiosis?
E. Tenella. E. Necatrix. E. Brunetti.
At post mortem a proximal gut thickening with white lesions indicates which avian coccidiosis?
E. Acervulina
At post mortem a mid gut thickening with pink exudate indicates which avian coccidiosis?
E, Maxima
At post mortem a mid gut ballooning with white lesions indicates which avian coccidiosis?
E. Necatrix
At post mortem a swollen caeca that is thickened and dark indicates which avian coccidiosis?
E. Tenalla
