Reports

Prolactin in the Postpartum Rat: Synthesis and Release in the Absence of Suckling Stimulation

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Science  07 Mar 1969:
Vol. 163, Issue 3871, pp. 1083-1084
DOI: 10.1126/science.163.3871.1083

Abstract

Postpartum female rats deprived of suckling stimulation while being kept continuously with pups nonetheless suspended ovarian cyclicity for an average of 16 days and responded to uterine trauma by forming deciduomata. These results show that the extramammary stimulation afforded by young is alone capable of sustaining prolactin output from the adenohypophysis of the postpartum rat.