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I am Richard
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“Melatonin fed daily to anoestrus goats eight hours before darkness
while maintained in a room with 16 hours light per day resulted in a 50 %
decrease in prolactin levels after 23 days. Twenty-two days after a four hour
reduction in light the prolactin levels in both control and melatonin treated ewes
decreased to 5 % of the initial levels. These results confirmed in goats that one of
the earliest physiological responses to short daylength was a precipitous drop in
plasma prolactin (Walton et al., 1980) and that showed that exogenous melatonin
could replicate this response.”
while maintained in a room with 16 hours light per day resulted in a 50 %
decrease in prolactin levels after 23 days. Twenty-two days after a four hour
reduction in light the prolactin levels in both control and melatonin treated ewes
decreased to 5 % of the initial levels. These results confirmed in goats that one of
the earliest physiological responses to short daylength was a precipitous drop in
plasma prolactin (Walton et al., 1980) and that showed that exogenous melatonin
could replicate this response.”
