The effects of photoperiod on testes in rat: a morphometric and immunohistochemical study. Kus I, Akpolat N, Oner H, Ayar A, Pekmez H, Ozen O, Sarsilmaz M. Journal Article 2003; 24(3-4): 209-214 PubMed PMID: 14523359 Keywords: Animals, Immunohistochemistry, Leydig Cells:physiology, Luminescent Measurements, Male, Organ Size:physiology, Photoperiod, Rats, Rats, Wistar, Seminiferous Tubules:anatomy & histology, Testis:anatomy & histology, Testosterone:blood,. Citation OBJECTIVE: The aim of this study was to examine the effects of photoperiod on testes in rat. DESIGN: For this purp..... Read abstract