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Bioacoustics article: Behaviour 141-2

Subject: Bioacoustics article: Behaviour 141-2
From: Reeflab <>
Date: Wed, 17 Mar 2004 10:24:46 -0800
 Kapusta J & H Szentgyorgyi 2004. Ultrasonic responses of CBA pups to the
 odour of genetically different mice. Behaviour 141: 157-167.
 Abstract: Mouse pups that are separated from the nest and exposed to cold
 temperature emit ultrasonic calls. These signals are perceived by
 conspecifics and play an important communicative role in mother-offspring
 interaction. Newborn mice are able to modify ultrasonic calls in response to
 different olfactory cues. Three-day-old CBA-strain mouse pups produced fewer
 sounds in contact with bedding of adult CBA mice than when exposed to
 genetically unrelated cues of C57BL and DBA adult animals. The pulses were
 also significantly shorter in the presence of odour of CBA mice than when
 exposed to another strain. Newborns emitted the shortest signals when in
 contact with urine of CBA virgin females, but there were no differences in
 vocalizations in response to odours from intact, castrated, and
 testosterone-treated castrated CBA males. These results confirm that CBA
 pups can distinguish the odour of their genotype. The paper also presents
 the first evidence that CBA pups discriminate the sex of adult animals and
 that the chemosignals recognized by pups are secreted with urine but are not

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