Reproductive Physiology Mechanisms in Bony Fish

Document Type : scientific research article

Abstract

Reproduction includes hormonal regulated processes, such as the growth and maturity of the reproductive organs and reproductive cells, the production of functional reproductive cells (eggs and sperms) that can engage in fertilization to survive an event type Are important. Therefore, reproductive tissues should be produced during embryonic development, and the growth and reproductive maturity of the reproductive cells should be performed after sexual maturity. Fish may use a lot of reproductive strategies that are: livestock (internal fertilization, maternal embryo development, and maternal nutrients for fetal growth), live birth (fertilization) Inner, the mother of yolk eggs suggests that these eggs are egg-laying eggs in the tube), and in the laying (external fertilization, the embryo develops out of the mother's body). In the present paper, various types of reproductive mechanisms of bone marrow production, including the activation of the pituitary-pituitary axis during puberty, gonadotropin releasing hormones, pituitary gland, gonadotropins, Steroidization, spermatogenesis process, oocyte development process, oocyte growth, oocyte yellowing and oocyte maturation process.

Keywords


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