Question
Answer
Article
What is the transmission and life cycle of Eimeria species?
Direct transmission
Faecal-oral route Link to Article
What is the transmission and life cycle of Isospora species?
Usually direct transmission by the faecal-oral route
Some species use facultative intermediate hosts forming tissue cysts
Transmission is then by the faecal-oral or route or via ingestion of the intermediate host Link to Article
How long is the prepatent period of poultry Eimeria species?
1 week
Sporulation takes 2-3 days Link to Article
Name the malabsorptive Eimeria species
E. maxima
E. acervulina
E. mitis
E. praecox Link to Article
Name the haemorrhagic Eimeria species
E. necatrix
E. brunetti
E. tenella Link to Article
Which area of the gastrointestinal tract does E. acervulina, E. maxima , E. tenella and E. necatrix affect and what kind of lesions are produced?
E. acervulina affects the proximal gut forming white ladder lesions
E. maxima affects the mid-gut producing a pink exudate
E. tenella affects the ceaca forming a core of dark, haemorrhagic blood
E. necatrix affects the mid-gut forming salt and pepper leions Link to Article
What are the two main Eimeria species which affect cattle and what is the prepatent period?
E. zuernii
E. bovis
2-3 week prepatent period Link to Article
What are the two significant Eimeria species which affect sheep and what is the prepatent period?
E. ovinoidalis
E. crandalis
2 week prepatent period Link to Article
What is the most significant species of Isospora which affects pigs and what the prepatent period?
I. suis
1 week prepatent period Link to Article
Which parts of the gastrointestinal tract do the Eimeria species which affects rabbits inhabit?
2 inhabit the caecum
1 inhabits the bile duct epithelium (E. steidae) Link to Article