?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Placenta+on+pups'+skin+accelerates+onset+of+maternal+behaviour+in+non-pregnant+rats&rft.creator=Kristal%2C+Dr.+Mark+B.&rft.creator=Whitney%2C+J.F.&rft.creator=Peters%2C+L.+C.&rft.subject=Behavioral+Neuroscience&rft.subject=Animal+Behavior&rft.description=Previous+research+has+indicated+that+virgin+rats+(Rattus+norvegicus)+behave+maternally+(sensitize)+more+rapidly+if+kept+in+close+proximity+with+pups.+Since+both+parturient+rats+and+a+large+percentage+of+virgin+rats+avidly+consume+placenta%2C+we+tested+whether+placenta+and+amnionic+fluid%2C+applied+to+the+skin+of+the+stimulus+pups%2C+would+draw+the+female+adults+into+closer+contact+with+the+pups+and+therefore+hasten+the+onset+of+maternal+behaviour.+The+results+indicated+that+the+procedure+indeed+shortened+the+maternal+sensitization+latency.+Furthermore%2C+this+effect+was+not+due+to+the+wetness+of+the+pups%2C+to+the+presence+of+placenta+in+the+cage%2C+or+to+the+adults+having+previously+ingested+placenta.+Other+attractive+ingestibles+applied+to+the+pups'+skin+produced+intermediate%2C+but+not+significant%2C+shortening+of+the+maternal+sensitization+latency.&rft.publisher=Animal+Behaviour+Society&rft.date=1981&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5785%2F1%2Fab.pdf&rft.identifier=++Kristal%2C+Dr.+Mark+B.+and+Whitney%2C+J.F.+and+Peters%2C+L.+C.++(1981)+Placenta+on+pups'+skin+accelerates+onset+of+maternal+behaviour+in+non-pregnant+rats.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5785%2F