CIRCADIAN BIORHYTHM OF HEART BEAT FREQUENCY IN BROILER CHICKS
Abstract
Due to the structural vicinity and of the synaptic connections of the pineal gland with diencephalon formations, the involvement of the latter in the modulation of the diurnal and nocturnal variations of the organism is possible. In birds, the involvement of the pineal gland in the correlation of the circadian variations of the circadian rhythm was shown by many authors (Binkley, S. et al., 2000, Cain, J. et al., 1999). We monitored for 12 days the early display of this relation surveying day-old broiler chicks.a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
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