Predator odour and its impact on male fertility and reproduction in Phodopus campbelli hamsters

Citation
Ny. Vasilieva et al., Predator odour and its impact on male fertility and reproduction in Phodopus campbelli hamsters, NATURWISSEN, 87(7), 2000, pp. 312-314
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Multidisciplinary,Multidisciplinary
Journal title
NATURWISSENSCHAFTEN
ISSN journal
0028-1042 → ACNP
Volume
87
Issue
7
Year of publication
2000
Pages
312 - 314
Database
ISI
SICI code
0028-1042(200007)87:7<312:POAIIO>2.0.ZU;2-Z
Abstract
This study investigated the influence of cat urine odour in suppressing dev elopment and fertility in Campbell's hamster males. Exposure to this odour from postnatal day 11 until day 45 (sexual maturation) resulted in reduced sex organ weights, reduced testosterone levels and in an increase in abnorm alities of the synaptonemal complex in both sex chromosomes and autosomes. Subsequent breeding experiments revealed a significant decrease in litter s ize. All these data indicate a severe effect of predator odour on the breed ing success of potential prey species. It is assumed that these effects are caused by the sulphurous compounds in the urine; however, the underlying m echanisms are not yet known.