Rabbits Flashcards
Give the order and family to which rabbits belong
Lagomorph, Leporidae
To what genus to hares belong?
Lepus
What is the genus and species name for domesticated rabbit?
Oryctolagus cuniculus
Where is the sacculus rotundus located?
ileocecal junction
What is the functional attribute of the vermiform appendix and GALT in general
maturation of IgM+ B cells
Which immunoglobulin are rabbits lacking compared to most other species
IgD
The watanabe heritable hyperlipidemia rabbit is deficient in which cholesterol receptors?
LDL
Where are the “peg” teeth located and what function do they serve
directly caudal to the maxillary incisors. used to bite and sheer
how many canine teeth do rabbits have?
0
Give some other common names used to describe cecotrophs?
soft pellets, night feces
consumed directly form anus, rich in Vit B etc, nutritional benefit
What causes rabbit urine to be cloudy ?
high levels of ammonium magnesium phosphate and calcium carbonate precipitates
Describe the anatomic difference in urethral orifice of male and female rabbits
Buck- round
Doe- slit-like
T or F. The doe has a bicornuate uterus with a common cervix?
F. The uterus is bicornuate with two separate cervices
T or F. The doe has a hemochorial placenta
T
What is a pseudoeosinophil or heterophil in a rabbit
Normal neutrophil in a rabbit, it has characteristic red granules so it looks like an eosinophil.
What is typical life span of a rabbit?
5-7 years
Typical breeding age, puberty, for a rabbit is?
5-7months of age
Does are induced ovulaters with ovulation occurring approximately how many hours post copulation?
10-13hr
What is the typical gestation period of the rabbit?
30-32day (1 month)
Pseudopregnancy is common in rabbits. T or F
T. Ovulation may be included by many different things and a retained corpus luteum will maintain progesterone levels for 15-17 days, giving the appearance of pregnancy
What is the common term for parturition in rabbits?
kindling
What is the AWA requirement for space(floor and height)to house a rabbit that 2-4kg?
3.0sqft of floor space and 14inches height
What are common methods to control pasteurellosis in rabbitries?
- test and cull
- c-section rederivation
- enrofloxacin treatment
What is the etiologic agent of Tyzzers disease in rabbits?
Clostridium piliforme
Serologic screening can be used for definitive diagnosis of C. piliforme. T or F
F. Not sufficient for definitive diagnosis but a useful screening tool to keep potential carriers or infected animals out of colony
What is the etiologic agent for the disease known as iota enterotoxemia
Clostridium spiroforme (helically coiled clostridium)
What is the “gold standard” test for diagnosis of C. difficile?
cytotoxin assay for C difficile toxin B
What protein does the eae gene of EPEC encode? It is involved with the induction, attaching and effacing lesions in the intestine.
intimin
What is the cause of rabbit syphilis (vent disease, cuniculosis)
Treponema paraluiscuniculi
What are the clinical signs associated with Treponema paraluiscuniculi?
Erythematous macules/papules, erosions, crusts or ulcers on the vulva or prepuce (or anus, face, mouth nose)
To what viral family does the etiologic agent of myxomatosis belong?
Poxviridae, leporipoxvirus
What are the typical lesions present with myxomatosis?
edema around the face and genitals, mucinous skin lesions and tumors
How is myxoma virus transmitted?
arthropod vectors (fleas mosquitos) and directly
How is myxoma virus diagnosed
PCR, serology, culture of virus from affected tissues
What other antigentically related (to myxoma virus) leporipoxvirus caused fibromatosis in rabbits
Rabbit (Shope) fibroma virus
T or F. Rotavirus (a member of the reovirus family) is common in domestic rabbits.
T. Should be include on diff dx of diarrhea in rabbits
To what genus does the etiologic agent of Rabbit Hemorrhagic Disease belong
Genus- Lagovirus
Calicivirus
Rabbit Hemorraghic fever virus
What is the common pathology and cause of death associated with Rabbit Hemorrhagic Fever?
Periportal hepatic necrosis
Generally die of DIC (usually sudden death without clinical signs, but could see anorexia, depression, epistaxis
What is the etiologic agent of hepatic coccidiosis in rabbits
Eimeria stiedae
What are common clinical signs of infection with eimeria stiedae in rabbits
hepatomegaly
grossly- liver is enlarged with multifocal yellow/white lesions of varying size
How can Eimeria stiedea be diagnosed in live rabbit
fecal exam (float or concentration)
T or F. Encephalitazoon cuniculi infection can include signs of renal failure as well as motor paralysis.
T. Though the disease is usually latent, but can show signs of motor paralysis, convulsions, tremors, torticolis, coma and kidney failure
What is the common route of transmission of encephalitazoon cuniculi?
horizontal by direct contact or environmental contamination (ingestion of infected urine)
Typical pathologic lesions of E. cuniculi include:
granulomatous encephalitis, multiple white pinpoint lesions on the kidneys, organisms floating free in the tubules of the kidneys
T or F. E. cuniculi is really detectable in tissues using H and E stain
F. It does not stain well with H and E. Better to use Giemsa, Gram or Goodpastures
Give the genus and species name of the rabbit pinworm
Passalurus ambiguus
Name 2 media that would be suitable for culturing Microsporum canis from crusting skin lesions on a rabbit
Sabouraud dextrose or DTM (dermatophyte test media)
What cells are targeted by the funds Pneumoncystis oryctolagi
The organisms attach to Type 1 epithelial alveolar cells
Trichobezoar has been reported as an incidental finding at necropsy in what percentage of rabbits
21%
What is the most frequent site of traumatic veterbral fracture in a rabbit, most commonly induced by struggling during restraint.
7th Lumbar vertebrae (L7), caudal articular processes
What rabbit strain was used to sequence and publish the entire rabbit genome in 2004?
Thorbecke (partially inbred, obtained from Covance)
What are 2 possible causes of hydrocephalous in a rabbit?
- inherited (single autosomal recessive gene hy/hy
- hypovitaminosis A in pregnant does
Name the species of rabbit and type of inheritance for buphthalmia.
Common in NZW, autosomal recessive with incomplete penetrance. bu/bu newborns usually have normal intraocular pressures at birth by demonstrate elevated IOP at 1-3months. Disease accompanied by many physiological and structural changes (corneal edema, vaculariiry, thickening of Descmets membrane, etc)
T or F. The primary defect in inherited mandibular prognathism in rabbits is a shortened maxilla
T. The maxilla is short compared to a normal length mandible. Main clinical concern is malocclusion requiring identification and constant trimming of teeth
What is the most common age and leg affected in rabbits with splay leg
kits 3-4 weeks old, right rear
What enzyme/gene allows rabbits to consume diets containing belladonna compounds?
Atropine esterase produced by the gene Est-2F. Rabbits will inactive atropine administered for therapeutic purposes.
What effect does Complement 6 (C6) deficiency have on atherosclerosis in rabbits
protects agains diet induced atherosclerosis
T or F. C8 alpha-gamma deficiency is always associated with dwarfism?
T
What are the key characteristics of the Watanabe-heritable hyperlipidemic rabbit (WHHL)?
aortic atherosclerosis by 5 months of age, xanthomas to digital joints, elevation serum cholesterol and beta-lipoprotein
What is the most common tumor in aged female rabbits
endometrial (uterine) adenocarcinoma, malignant often metastasizing to liver lungs etc
