Abstract
Reproductive activity is coordinated by the interaction between the hypothalamic-pituitary-gonadal (HPG) axis, hormone secretion and neuronal stimuli. The gonadotrophic hormones, among other pituitary hormones, act in the gonads through the bloodstream so that gametogenesis and secretion of gonadal hormones are maintained in a proper way to propitiate reproduction. It is known that altera…