Exam III - Eimeria spp.

Question 1

What is the site of infection for Eimeria spp. in birds?

Answer 1

small and large intestine

-each species of bird has there own species of Emeria

Question 2

In birds with Eimeria spp. which is more common coccidiosis or coccidiasis?

Answer 2

coccidiasis is much more common than coccidosis except for turkeys its the reverse but the pathology tends to be milder than in chickens

Question 3

What is the PPP of Eimeria spp. in birds?

how long do birds shed eggs?

Answer 3

1 1/2 weeks

eggs are shed for about 1 week

Question 4

what is the best way to Dx Eimeria spp. poultry production / birds in general?

Answer 4

Necropsy - site of lesion will narrow the list of Eimeria spp.

Question 5

Eimeria spp. can cause more severe CS/pathology in chickens or turkeys?

Answer 5

Chickens - commonly in chicks can cause death from blood loss = lesions of the cecum & passing blood in feces. CS of chicks include drooping, anarexia & huddleing together with other chicks.

Question 6

with the prevelence of Eimeria spp. in the poultry industry tx is difficult. name a big challange that will be faced by poultry vets when txing Eimeria spp.

How can a vet avoid this problem better?

Answer 6

drug-resistants

changing the class of drug used during the growth period of the bird - “shuttle program”; Vaccines

Question 7

when are chicks first treated for Eimeria spp.?

Answer 7

soon after hatching

Question 8

Eimeria leukarti is found in what species of animal?

Answer 8

All equids

Question 9

what is the site of infection for Eimeria lukarti?

Answer 9

the small intestine of All equids

Question 10

Eimeria lukarti in largly asymptomatic in equids but in foals it can cause what?

Answer 10

foals are more susecpible and can have intermittent diarrhea

Question 11

why is dxing Eimeria lukarti more dificult than other emeria spp in fecals?

Answer 11

because the oocyte of Eimeria lukarti has a thick band/wall around it that makes it hard to float it. sedementation can be used or sugar soln’s with flotation divises can be used.

Question 12

what id the PPP of Eimeria lukarti?

fhow does it take Eimeria lukarti to sporulate?

how many sporocyts & sporozoites does Eimeria lukarti have?

Answer 12

15 days = ppp

• (Emeria spp.) sporulation in 2-4 days contains 4 sporozoites and 2 sporocyts

Question 13

what is the Tx for Eimeria lukarti?

Answer 13

there is none but antiprotozoal remidies should be tried and supportive care is necessary

Question 14

what is the site of infection for Eimeria spp of swine?

Answer 14

the small intestine.

Question 15

Eimeria in sheep and goat are closly related to Eimeria in what other species?

Answer 15

cattle

Question 16

Eimeria spp. of cattle are different than in equids after the first generation of schizont formation. In equids all 3 generations remain in the small intestine & large intestine but in cattle the 2nd & 3rd generation infect where?

Answer 16

the large intestine only

Question 17

the risk factors for the spred of Eimeria spp. of cattle include unhygenic conditions & ?

Answer 17

overcrowding

Question 18

Eimeria spp. are more pathogenic in the ___&___ and Isospora spp. is more pathogenic in _______.

Answer 18

foals & calves ; piglets-(green diarrhea)

Question 19

coccidiasis –> coccidiosis can be lessened in cattle by decreasing the _____ load on them.

Answer 19

stress

Question 20

T or F

cattle build immunity with age and exposure to Eimeria spp.

Answer 20

true.