title: Pinealectomy and photoperiod influence testicular development in the Djungarian hamster.
mesh_terms: D000818:Animals; D006224:Cricetinae; D005837:Genitalia, Male / Q000033:anatomy & histology / Q000254:growth & development*; D008027:Light; D008297:Male; D009929:Organ Size; D010870:Pineal Gland / Q000502:physiology*; D012741:Sexual Maturation; D013737:Testis / Q000254:growth & development