Complete sex reversal of fish is accomplished routinely in aquaculture practices by exposing fish to exogenous sex steroids during gonadal differentiation. A variety of environmental chemicals are also active at sex steroid receptors and theoretically possess the potential to alter normal sexual differentiation in fish. However, in controlled environmental chemical exposures to date, only parti...

Among the animals which science has neglected domestic water buffalo serves as an outstanding example Ahmad, et al. [1]). Scarce information is available regarding sex differentiation of fetus in buffaloes. (Ranjbar [2]) reported that could be distinguished at 56 days (C-R length, 3-4 cm) gestation Iranian buffalo.

During embryogenesis, incubation temperature and the hormonal environment influence gonadal differentiation of some reptiles, including all crocodilians. Current evidence suggests that aromatase, the enzyme that converts androgens to estrogens, has a role in sexual differentiation of species that exhibit temperature-dependent sex determination (TSD). During the temperature-sensitive period (TSP...