most wanted: Rodentology


February 20, 2014

Rodentology is the study or science of rodents. A rodentologist investigates pests and creates a behavioral profile to assist and predict their characteristics. The nefarious house mouse, Mus domesticus, is in the Order Rodentia (meaning to gnaw) and Family Muridae (meaning mouse). Physiological data is essential to a rodentologist when creating a pest profile.

  • Adult weight: 18 to 40 grams
  • Dorsal pelage: white; grey; light brown; black
  • Ventral pelage: light coloration
  • Life span: one to three years
  • Heart rate: 300 to 600+/min
  • Blood volume: 5 to 6 ml/100 grams body weight (gbw)
  • Respiratory rate: 150 to 170/min
  • Urine output: 0.5 to 1.0 ml/day
  • Water per day: 15 ml/100 gbw
  • Food per day: 15 g/100 gbw
  • Puberty: five to eight weeks
  • Oestrous cycle: polyoesterus (each cycle four to five days)
  • Gestation: 19 to 21 days
  • Average litter: four to 12 pups
  • Birth weight: 1.0 to 1.5 g
  • Weaning age: three to four weeks
  • Postpartum oestrus: within 24 hours (fertile)
  • Mammae: five pairs

The masticating house mouse has dentition of 16 teeth (one incisor and three molars per quadrant) with a diastema (prominent space) separating the incisors, which grow continuously, from the molars. pmp


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