In this study, 149 samples of this species were investigated during the period from November 2009 to October 2010 in Musa estuary. After studding morphological and histological characteristics of gonad specimen; they were prepared through histological method. Samples were prepared through usual histological method and studied under light microscope.According to the results, the maturity stages of male Liza macrolepis were separated to six different successive stages. These stages were as follow: stage I, the testes were small in size and contained the spermatogonia which were only cellular components. In stage II (maturing virgin), the spermatogonia and primary spermatocytes were visible. In stage III (developing, intensive spermatogenesis was occurred and the primary and the secondary spermatocytes were the most visible cells during this stage. In stage IV (developed), cells of all stages of spermatogenesis were observed.In stage V, the testes were filled with sperms. In stage VI, residual spermatozoa and the spermatogonia were visible in the testes.

Prevalence of abortion is higher in women with autoimmune thyroid disease. In the majority of cases, however, no abnormality of thyroid function is detected despite the high levels of antithyroid antibodies. The direct influence of such harmful autoantibodies in female Reproductive organs may serve a role in pregnancy loss. In this study, expression of thyroglobulin in the Reproductive tissues of cycling mice has been evaluated. Stages of estrous cycle were determined by cellular morphology and ratio of epithelial cells to leukocytes in vaginal smear of Balb/C mice. At each phase, the mice were sacrificed and their uterus, ovary and fallopian tubes were removed. Expression of thyroglobulin-specific transcript in endometrium was investigated by two sets of primers using reverse transcriptase-polymerase chain reaction (RT-PCR). In addition, expression of thyroglobulin in Reproductive tissues was assessed by immunohistochemistry and dot blot analysis. The results showed that thyroglobulin mRNA is not expressed in endometrial tissue of Balb/C mice at any stage of estrous cycle. Immunohistochemical analysis also confirmed that thyroglobulin or its cross reactive-antigens are not expressed at the protein level in the female Reproductive organs. The results showed that thyroglobulin was not expressed in the Reproductive organs of female mice. It is plausible that antithyroglobulin antibodies could interact with newly-generated antigens during placentation and pregnancy.