Modulatory roles of melatonin on respiratory and heart rates and their circadian rhythmicity in donkeys (Equus asinus) subjected to packing during the hot-dry season
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In mammals a central circadian clock is located in the suprachiasmatic nuclei of the hypothalamus, which regulates the innate physiological rhythms to the ambient 24-h light-dark cycle. Melatonin is an essential component of circadian rhythm. The study aimed t... ...
