Reptiles Flashcards
What should enclosures be made of?
Synthetic nonporous material, sealed wood, plexiglass
What size should enclosures be?
Larger the better, vertical for arboreal species, horizontal for terrestial species
What should the temperature be?
85-95 degrees for tropical and desert lizards with a basking light reaching no more than 100-105 degrees
What humidity should it be?
80-90 for tropical
30-50% for desert
Why is UVB lighting important?
necessary for vitamin d synthesis and calcium absorption
What do herbivore lizards eat?
grasses, leaves, vegetables, and fruit
What type of diet should herbivore lizards have?
moderate to high fiber and moderate to low fat and protein
What should be fed as a protein source?
Alfalfa in moderation
What should you never feed herbivore lizards?
Dog or cat food
What is toxic to herbivore lizards?
parsley, spinach, and chives
What do carnivores eat?
Prey, small mammals, birds, or other reptiles
What type of diet should carnivores be fed?
High protein diet with moderate fat and low fibeer
How should you feed carnivores immature rodents?
Coated with calcium supplement
Why should you avoid feeding live prey?
may cause injury to the reptile
What do insectivore lizards eat?
crickets, mealworms, and was worms
How should you prepare insects?
Must be fed a nutrient rich diet for up to 2 days
Why should you do gut loading?
Insects do not provide enough nutrition without gut loading
What do omnivore lizards eat?
Plant and prey items; combination of items you feed the other types of lizards
How should you give water to reptiles?
Depending on the species, dish, misting, or dripping system
How to restrain a lizard?
Restrain head first to prevent bite; secure the head by placing the index finger and thumb around the base of the mandible. Use free hand to hold rear legs and tail; do not hold tail
What is a calming trick for lizards?
Some species will calm down with both eyes covered due to vagal stimulation
What are the venipuncture sites of lizards?
- Ventral coccygeal (tail)
- Jugular
- Ventral abdominal
How to restrain chelonians?
Grasp both sides of the shell then restrain head by grasping base of skull at the mandible with index finger and thumb
Venipuncture sites of chelonians?
- Jugular
- Subcarapacial venous sinus
- Dorsal coccygeal
What is the main defense of snakes?
Bites and constriction
How do you restrain snakes?
Grasp head at level of mandible support body with the other hand
What is a major medication toxic to chelonians and debilitated snakes?
Ivermectin
What does ivermectin cause in chelonians?
Neurologic deficits and often death
What is metabolic bone disease?
Malnutrition and lack of exposure to UVB light leads to decreased sythensis of vitamin d3
Why is vitamin D3 essential?
Calcium absorption and metabolism
What are the clinical signs of metabolic bone disease?
weakness
lethargy
stunted growth
muscle fasciculations
abnormal gait or posture
fractures
soft mandible or rubber jaw
What happens if you dont treat metabolic bone disease?
It is fatal
What are two renal/urethral diseases lizards can have?
renal disease and bladder stones
What is gout?
Elevated levels of uric acid in the blood lead to insoluble uric acid crystals in tissues
What parasites can lizards get?
- Ticks amd mites
- Worms
- Protozoa
- Blood parasites
What are the types of worms lizards can get?
trematodes (flukes)
cestodes (tapeworm)
nematodes (roundworm)
Oxyurids (pinworms)
What type of protozoa do lizards get?
Entamoeba invadens and cryptosporidium
What does entamoeba cause?
Severe GI disease
What happens with cryptosporidium
Does not often respond to therapy and is fatal
What is unique about blood parasites in lizards?
Does not cause disease but rarely can cause anemia
What is unique about oxyurids in reptiles?
Believed to be commensal and are often present without causing disease
What is a zoonotic disease of reptiles?
Salmonella
What are the 3 viruses lizards can get?
- Adenovirus
- West Nile Virus
- Herpes Virus
What does adenovirus cause in lizards?
neurologic, poor body condition, death; no treatment available
What species of lizard is west nile virus discovered in?
Crocodile
What does herpes virus in lizards cause?
wart like growth on the skin, stomatitis, disease in the liver, lung or spleen. No treatment available
What happens to snakes with inappropriate feeding or exercise?
Malnutrition or obesity
What parasites do snakes get?
- Ticks and snake mites
- Crytosporidium
- Coccidian
- Entamoeba
What do snake mites lead to?
anemia
What does cryptosporidium cause in snakes?
Asymptomatic carrier or GI problems
Can abx help with cryptosporidium
May reduce shedding
How do you treat coccidian parasties in snakes?
Sulfonamides
What are the clinical signs of entamoeba invadens?
hemorrhagic diarrhea
dehydration
muscle wasting
death
What type of bacterial infections do snakes get?
Mostly gram negative but sometimes gram positive
What fungal infection can snakes get?
Fungal dermatitis associated with bad husbandry
What is inclusion body disease?
Suspect retrovirus that causes neurologic disease, weight loss, abnormal shedding and secondary infections
What is the treatment for inclusion body disease?
None
How is inclusion body disease transmitted?
Suspect snake mites
What are the 3 viruses snakes get?
- Herpes virus
- Adenovirus
- Paramyxovirus
What does herpes virus cause in snakes?
lesions in liver, pancreas, kidney, and adrenal cortex
What is the tx for herpes virus in snakes?
none
What does adenovirus cause in snakes?
liver damage
What are the clinical signs of paramyxovirus?
nasal discharge
pus and blood tinged discharge from glottis
neurologic disease
How is paramyxovirus transmitted?
contaminated respiratory secretions
What is the treatment for paramyxovirus?
No tx
Can snakes get cancer?
yes
What are the zoonotic diseases of snakes?
Salmonella and campylobacter
Can humans get infested with the common snake mite?
They can get bit but the mite will not stay on humans
What are the 6 diseases common in chelonians?
- hypovitaminosis a
- Metabolic bone disease
- Hepatic lipadosis
- Accelerate growth or early maturity
- gout
- zoonotic disease
Why is hypovitaminosis a?
Vitamin a deficiency resulting in degeneration of epithelial surfaces
What causes gout showing an increased production of uric acid?
ingestion of excessive protein
What causes gout showing a decreased production of uric acid?
dehydration or kidney disease
What is hepatic lipadosis in chelonians?
- Normal physiologic process during hibernation or egg formation but can be pathologic in obese or anorexic chelonians
What are the clinical signs of pathologic hepatic lipadosis?
obesity
lethargy
weight loss
infertility
abnormal feces
anorexia
What causes accelerated growth in chelonians?
juveniles or hatchlings that are fed high protein diets
What does accelerated growth in chelonians cause?
renal disease
skeletal deformities
high mortality
What are 8 zoonotic diseases carried by chelonians?
- Salmonella
- Mycobacterium
- Camplyobacter
- Chlamydia
- Yersinia
- Vibrio
- Aeromonas
- Escherichia