title: Testosterone and sex related physical characteristics during the maturation of the male Japanese quail (coturnix coturnix japonica).
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D002988:Cloaca / Q000502:physiology; D003370:Coturnix; D008297:Male; D009929:Organ Size; D012725:Sexual Behavior; D012741:Sexual Maturation; D013091:Spermatogenesis; D013737:Testis / Q000033:anatomy & histology / Q000098:blood supply; D013739:Testosterone / Q000097:blood*; D014680:Veins
chemical_list: D013739:Testosterone