Exotics (Basics Y1/2) Flashcards
What is the Dental Formulae of a rabbit?
I2/1 C0/0 P3/2 M3/3
What is the normal HR of a rabbit?
150-300bpm
What s the normal RR of a rabbit?
30-60bpm (nasal breather)
What is the normal temp of a rabbit?
38.5-40oC
What is the age of sexual maturity for a rabbit?
16w
How long is rabbit gestation?
30-33d
What is the tidal volume for a rabbit?
4-6ml/kg
Where are the venipuncture sites in a rabbit? (4)
Jugular
Lateral Saphenous
Cephalic
Marginal Ear vein
How do rabbits digest food?
Hindgut fermentation
DO have gall bladdr
Rabbits are Caecotrophs. True or false?
True
What is absorbed accross the caecal wall?
VFAs
Which nervous system innervates the fusus ocli?
ANS
How do rabbits excrete excess Ca?
In urine as calcium carbonate
Where do rabbits obtain dietary protein?
Bacteria in Caecal Pellet
What is special about rabbit neutrophils?
Cytoplasm stains pink-red (called heterophils)
What is the life expectancy of a mouse?
1-2.5y
What is the life expectancy of a rat?
3y
What is the life expectancy of a hamster?
1.5-2y
What is the life expectancy of a guinea pig?
4-7y
What is the life expectancy of a chinchilla?
10-15y
What is the dental formula for a guinea pig?
I1/1 C0/0 P1/1 M3/3
What is the dental formula for a mouse?
I1/1 C0/0 P0/0 M3/3
Describe the growth of rodent teeth.
ANELODONT
ARADICULAR
Rodents do not need starving before surgery. True or False?
True - fast gut transit time makes this unecessary
At what age do rodents reach sexual maturity?
6-8w
How do you sex a rodent?
Ano-genital distance: female close, boys far.
What are the 4 phases of a rat oestrus cycle? How can you tell?
Proestrus
Estrus
Metestrus
Diestrus
CYTOLOGY
Rodents have a high SA:BW ratio. What are they therefore susceptible to?
Dehydration
Hypoglycaemia
Hypothermia
When are rats most active?
at night - nocturnal
Where may the mammary tissue on a female rat be found?
From axilla to groin: 6 pairs of glands
What is special about the mouth of a hamster?
Cheek pouches which extend to scapulae.
Where do gerbils have a sebaceous gland?
Ventral midline - LARGE
What must one be wary of when handling a gerbil?
SLOUGH TAIL if you grab it at tip or middle!
What must be fed to guinea pigs constantly and why?
VITAMIN C! scurvy can develop in 4d!!
how many mammary glands do guinea pigs have and where?
1 pair - inguinal area
how many mammary glands do chinchillas have and where?
2 thoracic, 1 inguinal pair
Describe the heart chambers found in reptiles.
3 chambers:
- 2 atria
- 1 common ventricle.
Which gland can control metabolism in reptiles?
Pineal - responds to light
What is the role of UVA for the reptile?
Reproductive trigger
What is the role of UVB for the reptile?
Vitamin D conversion
What are the 4 triggers of hibernation?
Temperature
Photoperiod
Food Supply
body Size
Why is a reptile skeleton slower to heal than that of a mammal?
Lack Haversian system
What is the optimal Ca:P ratio for a reptile?
2:1
Which disease of reptiles can develop with an incorrect Ca:P ratio?
Metabolic Bone Dz
What is special about reptilian blood?
Nucleated
Which tube should be used when taking a blood sample from a reptile and why?
Lithium Heparin
EDTA lyses reptilian blood
What is the major anatomical difference between mammalian and reptilian respiratory systems?
No diaphragm in reptiles!!
Which reptiles possess a bladder?
Chelonians
Some lizards
How can you determine the sex of most reptiles?
Genotyping!!
What controls skin shedding in reptiles?
Thyroid gland
What are the names for the two halves of a tortoise shell?
Carapace
Plastron
Where are the tow venipuncture sites on the toroise?
Jugular
Dorsal Coccygeal
Why are chelonia difficult to anesthetise?
Can switch to anaerobic metabolism
Why are chelonians prone to pneumonia?
No Diaphragm so can’t cough
Where are the kidneys located on a chelonian?
Under caudal carapace
Describe the morphology of a female plastron. (chelonian)
Convex/Flat
Describe the morphology of a male plastron. (chelonian)
Concave
In the lizard, which spinal vertebrae do not have ribs?
Cervical
What are the venipuncture sites on the lizard?
Ventral coccygeal vein
Axillary venous plexus
Which organs can be found in the cranial 1/3 of the snake?
Heart, Trachea, Oesophagus, Thyroid, Lung
Which organs can be found in the middle 1/3 of the snake?
Stomach, liver, lung, spleen, pancreas
Which organs can be found in the caudal 1/3 of the snake?
intestine, kidney, gonads
How does a snake open its jaw so wide?
No mandibular symphysis
No middle ear cavity
Loose Articulation
Where are the venipuncture sites in a snake?
Ventral coccygeal
Cardiac
Dorsal Palatine
At what age do snakes reach sexual maturity?
1-5y
What is the lifespan of a ferret?
6-10y
How should a ferret be handled?
Support under rump (long spine)
What is the permanent dentition of a ferret?
I3/3 C1/1 P3/3 M1/2
What diet should ferrets be fed?
Meat - OBLIGATE CARNIVORE
how does the biochem of a ferret with kidney Dz differ from dog/cat?
Urea rises. Creatinine does not!
Why are ferrets susceptible to heat exhaustion?
No sweat glands
Why is anal gland surgery pointless in the ferret?
Most of smell is from sebaceous glands
What is the best indicator of CV performance in the ferret?
Urine output
What are the 2 venipuncture sites in the ferret?
Cephalic Vein
Jugular Vein
When do ferrets hit puberty?
6-9m
What is special about ferret oestrus?
Reflex ovulators - failure to breed results in continual high oestrogen exposure, BM supp and death
What endocrine disease is common in ferrets? How does it present?
Adrenal disease - alopecia
What is the cause of adrenal disease in ferrets?
neutering females removes feedback inhibition.
LH continually stimulates adrenals –> hyperplasia
How can we prevent adrenal disease in ferrets?
Keep Jill with vasectomised hob
GnRH depot