exotics Flashcards
what is the skeletal formula for a cat
C7 T13 L7 S3 Cd20+-
what is the skeletal formula for a dog
C7 T13 L7 S3 Cs 20-+
what is the skeletal formula for a rabbit
C7 T12-13 L7 S4 Cd16
what is the skeletal formula for a guinea pig
C7 T13-14 L6 S2-3 Cd4-6
compare the rat skeletal formula to a dog
the dogs skeletal formula is C7 T13 L7 S3 Cd20-+ whereas the rats formula is C7 T13 L6 S4 Cd27-31. the dog and rat have the same Cervical and Thoracic vertebrae but the dog has one more lumbar vertebrae but one less sacral vertebrae, the rat has more Cd vertebrae than the dog
what is the purpose of the craniofacial hinge that is found in the head of a bird
it’s found between the upper beak and the skull. it increases mobility of the beak during feeding
what is the pygostylr of a bird
the causally placed fused vertebrae which support for tail feathers and rudder
what is the function of the coracoid bone in the avian skeleton
the coracoid is a stout strong bone that connects the cranial edge of the sternum to the shoulder joint complex
what is the function of the keel in birds
for muscle attachment (pectoral) to aid strong flight muscles
what are pneumatic bones
hollow bones which can be fused together to create a lighter body weight for flight and allow gas exchange using air sacs
why is the avian neck longer and more flexible than a mammals
to allow preening (flexibility), aids in flight and these animals may head bob when they walk or during courtship
Explain the significance of vitamin C in relation to guinea pig nutrition?
Guinea pigs are unable to synthesise vitamin C (1). This means they must be provided a dietary source of vitamin C (1) the failure to achieve the required levels of vitamin C can result in a condition called scurvy
State the difference between rabbit and a guinea pig in the dental formula both formulas clearly must be identified within the answer?
Rabbit dental formula is 2033/1023 = 28 in total and guinea pig
dental formula is 1013/1013 = 20 in total.
State the difference between rabbit and canine dentition.
Rabbits have open rooted teeth whereas canines are closed rooted
(1) with no continuous growth (1)
Rabbits naturally wear down teeth via lateral movements of the mandible (1), this is not seen in canines as they do not naturally wear down their teeth as they have permanent teeth once the deciduous fall out (1).
Rabbits have a diastema in place of canines (1).
Describe four main housing requirements for rabbits.
Adequate space to allow for natural behaviours, ideally 3 hops from end to end (1) or 6ft long, 2f high, 2ft deep (1).
- Made of sturdy material to prevent digging or chewing leading to escape (1) or rotting due to urine (1).
- Have space for sleep area, food area and toilet area (1).
- Protection from predators and adverse weather (1).
Describe five factors that contribute to malocclusion of rabbit’s teeth.
Poor diet, lack of hay and vegetables.
- Will hide symptoms as they gre a prey species so owners may not realise until it’s too late.
- Lack of gnawing materials- teeth are open rooted and constantly growing so without being able to gnaw on objects they won’t be naturally wearing them down to counteract the growth.
Neglect- owners not paying enough attention and therefore not noticing soon enough.
- Genetics- poor teeth conformation.
Describe five factors that contribute to malocclusion of rabbit’s teeth.
Poor diet, lack of hay and vegetables.
- Will hide symptoms as they gre a prey species so owners may not realise until it’s too late.
- Lack of gnawing materials- teeth are open rooted and constantly growing so without being able to gnaw on objects they won’t be naturally wearing them down to counteract the growth.
Neglect- owners not paying enough attention and therefore not noticing soon enough.
- Genetics- poor teeth conformation.
One of the most common medical diseases seen in rabbits is ileus or gut stasis.
a) Define the term Ileus.
b) Describe what factors could contribute to a rabbit developing Ileus?
One of the most common medical diseases seen in rabbits is ileus or gut stasis.
a) Define the term Ileus. (2, half marks awarded)
Ileus is a condition of the gastrointestinal tract (0.5), it happens when digestion stalls (0.5), muscular contractions of the stomach are reduced (0.5), and the food backs up in the intestines causing blockage (0.5) and bacterial flora in the digestive tract becomes unbalanced (0.5).
b) Stress or pain can lead to inappetence or prolonged anorexia. (1)
Dental disease such as malocclusion can prevent the rabbit from eating leading to ileus. (1)
Occlusions from foreign material such as hairballs. (1)
An incorrect diet can lead to ileus due to the rabbit’s inability to digest the food or lack of fibre.
Identify the key differences of digestion in rabbits compared to canines.
Rabbits are monogastric herbivores meaning they are hindgut fermenters (1).
Digestion begins during mastication via enzymes secreted by the salivary glands (1). These enzymes are found throughout the digestive tract and continue to break down food (1).
State three supportive feeding methods for tortoises in practice.
Tempt to eat by providing varied diet.
Gavage feeding.
Oesophagostomy tube.
Describe the key differences between the feline and avian skeleton.
A description of any of the following:
• Instead of forelegs the birds have wings (1)
• Adapted with reduced number of bones (1)
• Fusion of some bones compared to felines (1)
• Thinner bones. Internal bony braces maintain strength (1)
• Hollow bones filled with air spaces (1)
• Air sacs extend into some bones (1)
• Keel adapted for muscle attachments for flight in avians compared to felines.
• Birds have a keratinised beak no teeth (1), which is lighter than the feline jaw and associated dentition. (1)
• Synsacrum is fused in avians to support landing, this is not the case with felines.
• Uncinate process on ribs for muscle attachments and aid respiration.
State the preferred vein for intravenous injections in Iguanas.
Jugular or lateral coccygeal fein
- A juvenile Iguana has been admitted to the hospital for observation.
a) Please explain why temperature is one of the most important husbandry considerations for hospitalised reptiles.
b) Describe how a vivarium should be set up to ensure that an Iguana is housed at the correct temperature. (9 marks)
a) Iguanas are poikilothermic (1)- which means their body temperature varies in line with that of their surroundings (1)
Iguanas have a preferred optimum body temperature (1), this is the temperature at which physiological processes, e.g. immunogenics digestion and reproduction occur (1).
Low temperatures siow down digestion (1) and healing (1)
b) The vivarium should be set up with a ceramic or infrared bulb (1) to provide a stable background temperature (1).
There should be no way for the Iguana to injure itself by being able to access the bulb directly i.e. it should be guarded (1).
There should be a temperature gradient within the vivarium i.e. a warm and a cool side (1).
A basking area (or hot spot) should be provided too (1).
The temperature within the vivarium should be controlled by a thermostat (1).
The temperature should be monitored daily using a thermometer (1).
Temperature should be reduced at night-time. (1) Exact temperatures will vary between species (1)
Describe the anatomical differences in the structure of the reproductive anatomy of a female dog compared to a female rabbit.
The rabbit has 2 uterine horns which open into the vagina each with a separate cervix, the rabbit has no uterine body.
- the rabbit is an induced ovulatory whereas the dog is a spontaneous exulater.
- The gestation length of a rabbit is 28-32 days whereas the dog is 58-68days.
The male rabbit has no es penis, the dog does.
- The male rabbit has bulberethral glands, the dog doesn’t have these.
Describe the anatomical differences in the structure of the reproductive anatomy of a male dog compared to a male bird.
- The male bird has a pair of testes connected to the cloaca, whereas canines don’t have a cloaca.
- The testes lie inside the body whereas in canines they can lie outside the body in the scrotum.
- The bird has a phallus which forms into a groove when mating, the canine has a penis which is inserted into the vagina.
Female- - Birds produce eggs, mammals don’t
- Birds have a single ovary and oviduct whereas a dog has 2 ovaries and oviducts
Describe the anatomical differences in the structure of the reproductive anatomy of a male dog compared to a male lizard.
male-
-The lizard has paired hemipenes, the dog doesn’t have this.
The female lizard lays eggs, the dog doesn’t.
- Females have paired ovaries and oviducts which enter. into the uredeum of the cloaca, dogs don’t have a cloaca.
Lizards don’t have a uterus
- Don’t have a cervix, mammals do
Describe the anatomical differences in the structure of the reproductive anatomy of a male dog compared to a male chelonia.
Male chelonians have a cloaca which is where the penis is when at rest, when it is enlarged it is projected through the vent, whereas male dogs do not have a cloaca and their penis is held within the prepuce.
Male chelonian testes are attached to the cranioventral pole of the kidneys within the chelonian’s abdomen, whereas male dog’s testes are held in the epididymis.
Describe the anatomical differences in the structure of the digestive system of a female cat to a female rabbit.
The rabbit is a monogastric herbivore, this means they are hind gut fermenters.
Rabbits have a long GI tract whereas felines have a shorter Gl tract as they are carnivores meaning they don’t need a specialised digestive system as their digestion is made up from mechanical and enzymatic.
Rabbits grind their food laterally whereas dogs chew their food horizontally.
- Cats digestion starts with the salivary glands softening their food and these are found continuously throughout the digestive system and break food down.
- Rabbits use their cheek teeth mixed with saliva to break down their food.
- the rabbit has a well-developed caecum whereas the cats caecum is very short.
- Rabbits will also carry out caecotrophy which is the action of eating the caecotrophy to gain any lost nutrients, the cat doesn’t do this.
Rabbits have open rooted teeth whereas cats have closed rooted teeth.
Rabbits naturally wear down their teeth by lateral movements of the jaw, felines have permanent teeth.
Rabbits have a diastema instead of canine teeth. Rabbit teeth are chisel shaped and felines are pointed.