Melatonin biosynthesis and regulation in reproduction

Abstract excerpt

Melatonin, a neuroendocrine hormone widely present in animals, is a derivative of tryptophan secreted by the pineal gland. This hormone regulates animal circadian rhythms and can affect reproductive performance in many ways; for example, melatonin levels change in response to sunshine duration changes, which can inhibit or promote reproductive performance. In juvenile animals, melatonin inhibits estrus, whereas...

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