HomePhilippine Journal of Veterinary Medicinevol. 40 no. 1 (2003)

External Characteristics, Biochemical Profile and Organ Weights of the Philippine Wild Mouse (Mus musculus castaneus)

Rea Victoria P. Anunciado | Garlyn C. De Chavez | Takao Namikawa

Discipline: Veterinary Medicine



A total of 24 Philippine wild mice (juveniles: 5 males and 7 females; adults: 7 males and 3 females were captured and their morphology, serum biochemistry and organ weights were investigated. In the juveniles, body weight, head and body length, hind foot and ear length were greater in males than in females. Statistically significant difference in juveniles was noted only in the hind foot length (P=0.03). In the adults, tail length and ratio, and ear length of males were greater compared to females.  Statistically significant difference in adults between sexes was observed in head and body length (P=0.03). Glucose levels in the adult male and female mice (114-126 mg/dl) were lower compared with juveniles of both sexes (142-166 mg/dl). Cholesterol levels in the juvenile male and female mice (125-149 mg/dl) were lower compared with the adults of both sexes (161-182 mg/dl). Triglyceride levels in juveniles (66-89 mg/dl) were also lower compared with adults (112-170 mg/dl). Liver of adult females were significantly heavier compared with adult males (P=0.009). This study provides the preliminary characterization of the Philippine wild mouse, and will be of value in future studies on this animal species.