RATs lecture quiz #2 Flashcards
Rat scientific name
Rattus Norvegicus
Rat bones
Open epiphysis
Rat lungs lobes
One left lobe and four small right lobes
Eye gland
Harderian gland
Eye gland secretes
Porphyrin called “chromodacryorrhea”
Liver lobes
4: Median, L lateral, R lateral and caudate
Average weight
300g - 400g
Average lifespan
2 1/2 yrs to 3 1/2 yrs
Reach puberty
65 - 110 days, breed around 3 months
Females are
Polyestrus (not seasonal)
Weaning
19 - 21 days
Gestation
19 - 21 days
Litter
6 - 12 pups
Hairless until
7 - 10 days
Blind, eyes closed
7 - 14 days
Deaf
3 - 5 days
Vaginal plug lasts
12 - 24 hours
Non fertile mating results in
psudeopregnancy that lasts 5 - 10 days
Ideal temp
68 - 72F (acceptable 64 - 79f)
Humidity
40% - 60% ideal
Food intake
5g/100g body weight a day
Water intake
13 - 20ml/100g body weight a day
Feed make up
20-25% protein and 4% fat
Pneumocystic carinii
mycotic
Diag at necropsy with lung tissue exam using silver stain or serology
Trimethoprim-sulfa suppresses, but doesn’t cure.
Lice
Polyplay spinulosa
skin irritation, anemia
permethrin dust
Tapeworms
Rodentolepis nana
Diag by fecal flotation, smear or id in small intestines
zoonotic
Praziquantel, strict sanitation
Pinworms
Syphacia muris, S. obvelata and A. tetraptera
not ordinary symptoms, but sometimes alter hema values and imm response perianal tape diag
management practices, ivermectin
Dermatophytosis (Ringworm)
Trichophyton mentagrophytes
skin lesions or asymptomatic
treat with antifungal????
Ringtail
syndrome caused by low humidity (<20%0
annular constrictions of tail - distal to constriction, tail may become necrotic or edematous
Zymbal’s gland tumors
behind ear - invasive, but not metatastic
mammary tumors
neoplasia usually benign fibroadenomas
surgical removal is feasable and good prognosis.
IDIR
rotavirus
yellow stool
zoonitic
no treatment but supportive care
Sialodacryoadentitis virus and rat coronavirus
inflammation of salivary gland and lacrimal gland
eye squinting swelling of ventral cervical region,
Burnout technique