Influence of month of birth on the serum hormone concentrations and weights of the accessory sex organs and testes during maturation of the male laboratory rat.
D000375:Aging; D000818:Animals; D001835:Body Weight; D036861:Delivery, Obstetric / Q000662:veterinary; D005837:Genitalia, Male / Q000254:growth & development*; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D009929:Organ Size; D011388:Prolactin / Q000097:blood*; D051381:Rats; D012621:Seasons; D013737:Testis / Q000254:growth & development*; D013739:Testosterone / Q000097:blood*
D013739:Testosterone; D011388:Prolactin; D007986:Luteinizing Hormone