Rattus

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Author:
kris10leejmu
ID:
195569
Filename:
Rattus
Updated:
2013-01-26 22:16:23
Tags:
Exotic Animals One
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Description:
Exotic Animals
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  1. What are the different types of rats?
    • Sprague-Dawley
    • Wistar
    • Long-Evans (hooded rat) - most common pets
  2. Rats are the _____ most used research animal.
    2nd
  3. Are rats just a large mouse?
    no
  4. What kind of research are rats typically used for?
    psychological research
  5. Do rats fight when they are together?
    no
  6. Do rats have a gall bladder?
    no
  7. What happens to albino rats as they age and why?
    they turn yellow due to sebaceous glands 
  8. What happens to incisors as rats age?
    turn orange
  9. What is the average life span of a rat?
    about 3 years
  10. How are rats like horses?
    they are hind gut fermenters
  11. How can we tell the difference between males and females in rats?
    • males anogenital distance is longer
    • may also see testicles in males when they are older
  12. When do rats reach puberty?
    6 - 8 weeks
  13. Where is the Gambian rat from and what is the problem with this rat?
    • it is from Africa
    • involved in the spread of monkey pox...transmitted monkey box to prairie dogs
  14. At what age do we start breeding rats?
    3 months old
  15. Are rats continuously polyestrus?
    yes
  16. Do rats experience postpartum estrus?
    yes
  17. How long is gestation in rats?
    21 days
  18. How many are in a litter of rats?
    6 - 12
  19. When do rats open their eyes after being born?
    7 - 14 days
  20. When are rats weaned?
    3 weeks
  21. What do we do if a rat is experiencing dystocia?
    • lubricate a dosing needle and stick it in the vulva...the lubricant will get on the baby that is stuck and help make it slippery to slide out
    • if this doesn't work then a C-section will have to be performed
  22. How do we restrain rats?
    • grab over neck and shoulders
    • thumb and forefinger on both sides of mandible
    • hold tail and hind legs with other hand
    • mesh gloves are used in labs
  23. Should we scruff rats?
    no
  24. Can we put an E-collar on a rat?
    yes
  25. Where are the different places to collect blood in a rat?
    • lateral tail vein
    • ventral tail artery
    • orbital sinus (anesthetize)
    • vena cava (anesthetize)
    • cardiac puncture
  26. Which is the most common place to collect blood from a rat?
    lateral tail vein
  27. What do we use to collect blood in rats?
    heparinized syringe or capillary tubes
  28. What are different routes of medicating rats?
    • oral route
    • SQ
    • IP
  29. How do we medicate a rat IP?
    • head down
    • right caudal quadrant
    • needle at 20 degree angle to skin
  30. Are respiratory diseases common in rats?
    yes
  31. What are some different causes of respiratory diseases in rats?
    • mycoplasma pulmonis
    • sendaii virus
    • strep pneumonia
    • corynebacterium kutscheri
  32. When do we see acute pneumonia in rats and what causes it?
    • in young rats
    • due to strep
  33. What are the clinical signs of acute pneumonia in rats?
    • dyspnea
    • snuffling
    • abdominal breathing
    • may see purulent exudate
    • may see sudden death
  34. What are the common cause of chronic respiratory disease in rats?
    mycoplasma pulmonis
  35. What are the clinical signs of a chronic respiratory disease in a rat?
    • snuffling
    • discharge
    • hunched posture
    • roughened coat
    • red tears
    • head tilt
  36. In addition to respiratory diseases, what are some other common diseases in rats?
    • ulcerative dermatitis - scratching/staph infection
    • mammary fibroadenomas
    • overgrown incisors
    • chronic nephrosis - older rats
    • sialodacryoadenitis
    • chromodacryorrhea
    • ring tail
    • wounds/abscesses
  37. What is Sialodacryoadenitis?
    contagious viral disease in rats
  38. What are the clinical signs of sialodacryoadenitis?
    • swelling of cervical region
    • increased size of salivary gland and nodes
  39. Is there a treatment for sialodacryoadenitis?  How long does it take for rats to recover?
    • no treatment
    • 10 - 30 days
  40. What is Chromodacryorrhea?
    • red tears
    • secretions from harderian gland
    • see dried blood at nares
  41. What happens to chromodacryorrhea under a wood's lamp?
    will fluoresce
  42. What causes chromodacryorrhea?
    acute onset of stress
  43. When do we see ring tail in rats?
    in weaning rats
  44. What causes ring tail in rats?
    • humidity below 50%
    • avasular necrosis
  45. How do we treat wounds/abscesses in rats?
    • lance, drain, flush
    • hot pack
    • antibiotics
  46. Do rats make good pets?
    yes

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