[Relative growth of physiques in laboratory-bred cynomolgus monkeys: a longitudinal study during the first 6 years of life].
Physical growth was studied longitudinally in laboratory-bred cynomolgus monkeys (Macaca fascicularis) aged from birth to 6.0 years in females and to 6.5 years in males. An allometric formula was applied to morphometrical growth data and the relative growth of each morphological site to anterior trunk length was analyzed. The growth patterns of all of the measurement sites in females and most of the sites in males showed monophasic allometry; while those of head length, head breadth and morphological upper face length in males were judged to show diphasic allometry. The growth patterns of morphological total face length, upper arm length and lower arm length in some males showed diphasic allometry. Morphological measurements with negative allometry were head length, head breadth, morphological total face length, total head height, biacrominal breadth hand length and foot length, while the other morphological measurements revealed isometry in both sexes. However, the values of the relative growth coefficient to anterior trunk length were larger in males than in females, except for in the case of biiliac breadth. These differences in growth patterns may cause the morphological differences between genders after sexual maturation in this primate species.
Yoshida
T
T
Tsukuba Primate Center for Medical Science, National Institute of Health, Ibaraki, Japan.
Shimizu
T
T
Cho
F
F
Goto
N
N
D000367:Age Factors; D000818:Animals; D000830:Animals, Laboratory; D000886:Anthropometry; D005260:Female; D008137:Longitudinal Studies; D008252:Macaca fascicularis / Q000033:anatomy & histology / Q000254:growth & development*; D008297:Male