title: Effects of photoperiod and age on reproductive organs and serum LH in the male rat.
mesh_terms: D000367:Age Factors; D000818:Animals; D001835:Body Weight; D002369:Castration; D005837:Genitalia, Male / Q000502:physiology*; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D009929:Organ Size; D010775:Photic Stimulation; D010870:Pineal Gland / Q000033:anatomy & histology; D010902:Pituitary Gland / Q000033:anatomy & histology; D011467:Prostate / Q000502:physiology; D011863:Radioimmunoassay; D051381:Rats; D012669:Seminal Vesicles / Q000502:physiology; D013737:Testis / Q000502:physiology
chemical_list: D007986:Luteinizing Hormone