Rabbits

Question 1

Per Taylor et.al, Veterinary Parasitology, what are the 2 most pathogenic intestinal Eimeria of rabbits?

Answer 1

1. Eimeria flavenscens
2. Eimeria intestinalis

Question 2

Graphidium stringosum

Answer 2

Common: Rabbit strongyle
Site: Stomach, small intestine
Superfamily: Trichostrogyloidea
Unique features: Largest of strongyle eggs

Question 3

Obeliscoides cunculi

Answer 3

Rabbit
Site: Stomach
Superfamily: Trichostrogyloidea
Unique features: Can undergo hypobiosis

Question 4

Trichostrongylus retortaeformis

Answer 4

Rabbit
Site: Small instestine
Superfamily: Trichostrogyloidea
Unique features: 16-32 blatomeres in the typlical strongyle egg

Question 5

Trichostrongylus calcaratus

Answer 5

Site: Small intestine
Superfamily: Trichostrogyloidea
Unique features: very small, 7.0 mm long
Rabbit

Question 6

Nematodirus leporis

Answer 6

Site: Small intestine
Superfamily: Trichostrogyloidea
Unique features: in the intesine worms wrap around villi and look like cotton wool grossly
Rabbit

Question 7

Cittotaenia ctenoides

Answer 7

Site: Small intestine
Superfamily: Anoplocephalidae
IH: oribatid mites
Unique features: rabbit is DH

Question 8

Cittotaenia denticulata

Answer 8

Site: Small intestine
Superfamily: Anoplocephalidae
IH: oribatid mites
Unique features:Differs from C. ctenoide by having wider scolex (0.8 mm) and no neck
DH: rabbit

Question 9

Cittotaenia pectinata

Answer 9

Site: Small intestine
Superfamily: Anoplocephalidae
IH: oribatid mites
Unique features: Differs from C. ctenoide by having smaller scolex (0.25 mm) and a short neck

Question 10

Trichuris leporis

Answer 10

Site: Large intestine
Superfamily: Trichuroidea
Unique features: small- males 1.9-2.1 cm; females- 1.7-2.1 cm

Question 11

Passalurus ambiguus

Answer 11

Site: cecum, colon
Superfamily: Oxyuroidea
Unique features: Largest of pinworm eggs
Treatment: Fenbendazole 50mg/kg x5 day

Question 12

Dermatoxys veligera

Answer 12

Site: cecum
Superfamily: Oxyuroidea
Unique features: do not attached to the mucosa but L4 may cause ulceration

Question 13

What are the largest and smallest rabbit Eimeria oocysts?

Answer 13

Largest: Eimeria irresidua
Smallest: *Eimeria exigua *(same size as neutrophil)**

Question 14

Entamoeba cuniculi

Answer 14

Site: cecum
Family: Entamoebaidae
Unique features: not pathogenic

Question 15

Retortamonas cuniculi

Answer 15

Site: cecum
Family: Retortamonadorididae
Unique features: not pathogenic

Question 16

Callodium hepatica

Answer 16

Site: Liver
Superfamily: Trichuroidea
Unique features: not pathogenic

Question 17

Taenia serialis

Answer 17

Site: Liver & SQ connective tissue
Family: Taeniidae
Unique features: cysticercus in rabbit
Final host: Canids

Question 18

Eimeria stiedae

Answer 18

Site: Liver and biles ducts
Family: Eimeriidae
Unique features: sporocysts liberated in small intestine and migate to liver via portal veins

Question 19

Pelecitus scapiceps

Answer 19

Site: Synovial sheaths of the feet
Superfamily: Filaroidea
IH: Mosquitoes
Unique features: Generally, non pathogenic . Usually found at necropsy with adult worms seen in the connective tissue surrounding the tendons. Microfilariae in th eblood

Question 20

Psoroptes cunicului

Answer 20

Common name: Ear canker mite
Site: Ears
Superfamily: Psoriptidae
Unique features: Also can infect sheep and goats

Question 21

Cheyletiella parasitivorax

Answer 21

Common name: Rabbit fur mite
Site: Dorsum above the tail and neck
Family: Cheyletidae
Unique features: Can transmit myxomatosis virus mechanically
Treatment: Pyrethrin, dichlovos- environment; Ivermectin (systemic) or Selamectin spot on.

Question 22

Leporacarus gibbus

Answer 22

Common name: Rabbit Fur Mite
Site: Skin - back and abdomen
Order: Astigmata
Unique feature: Non-burrowing & the Chirodiscoides caviae (guinea pig mite) of rabbits

Question 23

Spilopsyllus caniculi

Answer 23

Common name: Rabbit flea
Site: Ears!
Order: Siphonaptera
Unique feature: Distribution is related to skin temperature
Vector: non-pathogenic Trypanosoma nabiasi
Treatment: Imidacloprid

Question 24

Lucilia sericata

Answer 24

Common name: Sheep blow fly, Greenbottle
Site: Skin- myaisis
Order: Calliphoridae
Tx: Prevention- pour on cyromazine

Question 25

Strongyloides cuniculi

Answer 25

Common name: threadworm Site: small intestine Superfamily: Rhabditoidea Unique features: transmitted percutaneous and transmammary