Experimental Animals
Online ISSN : 1881-7122
Print ISSN : 1341-1357
ISSN-L : 0007-5124
Original
Prolactin Levels and Maternal Behavior Induced by Ultrasonic Vocalizations of the Rat Pup
Haruo HASHIMOTOToru R. SAITOSen-ichi FURUDATEKazuaki W. TAKAHASHI
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JOURNAL FREE ACCESS

2001 Volume 50 Issue 4 Pages 307-312

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Abstract

The relationship among ultrasonic vocalization (USV), prolactin and maternal behavior was investigated in lactating rat mothers and their pups. The lactating mother had a cannula inserted into the external jugular vein, and was exposed to USVs emitted from a pup immediately. Changes of prolactin and maternal behavior were determined. Prolactin increased dramatically during exposure to USVs, when maternal search, retrieving and nest building behavior appeared significantly. These results suggested that the relationship among USV, prolactin and maternal behavior was included in communication between lactating mother and pup.

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© 2001 Japanese Association for Laboratory Animal Science
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