Insemination package of sperm and other compounds produced by the male to facilitate transfer of sperm to the site of fertilization
An ejaculate is composed of male genetic material housed within sperm cells and fluids containing chemical compounds that improve male fertilization success. Sperm is produced in the testes and travels out of the male’s body through a system of ducts connected to the accessory reproductive glands (ARGs). The accessory reproductive glands add fluids to the ejaculate for sperm nourishment and protection while inside the female reproductive tract.
Spermatogenesis, or the process of sperm production, occurs within microscopic tubules within the testicles. Mature sperm cells develop from spermatogonia, the undifferentiated male germ cell, and are matured and stored within the male reproductive tract prior to ejaculation. Sperm cells are haploid, meaning they contain only half of the genetic material...
- Gage, M. J., Stockley, P., & Parker, G. A. (1995). Effects of alternative male mating strategies on characteristics of sperm production in the Atlantic salmon (Salmo salar): Theoretical and empirical investigations. Philosophical Transactions of the Royal Society B: Biological Sciences, 350, 391–399.CrossRefGoogle Scholar
- Parker, G. A., & Pizzari, T. (2010). Sperm competition and ejaculate economics. Biological Reviews, 85(4), 897–934.Google Scholar