Pup Growth Rates and Breeding Female Weight Changes in Two Populations of Captive Bred Degus (<i>Octodon degus</i>), a Precocial Caviomorph Rodent

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dc.contributor.authorLong, C. V.
dc.contributor.authorEbensperger, L. A.
dc.date.accessioned2025-01-21T00:04:10Z
dc.date.available2025-01-21T00:04:10Z
dc.date.issued2010
dc.description.abstractContents
dc.description.abstractCaviomorph rodents are renowned for comparatively long gestations and producing relatively precocious offspring. The degu (Octodon degus) is one such caviomorph, originating in central Chile and providing communal pup care within wild groups. Reported are pup growth data for two populations of captive bred degus in Britain and Chile (representing wild populations), for the first time analysing pup development over the postpartum and weaning period in detail. Pups in both colonies were found to be similarly precocial at birth as assessed by open eyes and presence of full body hair. Degu pups in the British colonies put on weight at a rate of 2-3 g/day, while pups in the Chilean colonies put on weight at a rate of 1-2 g/day over the first 14 days. At birth, individual neonates weighed 5 +/- 1% of maternal mass for the British sample and 6 +/- 0.5% for the Chilean sample. Sexual dimorphism occurred in the weight and growth rates of pups in both samples, despite the lack of sexual dimorphism in adults of the species. Data for breeding female weight changes were also analysed, providing the first reported observations for this crucial period. Pregnant female weight gain was found to vary over the course of gestation, and post partum weight changes varied significantly between breeding females in accordance with litter size.
dc.fechaingreso.objetodigital2025-04-23
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1439-0531.2009.01470.x
dc.identifier.eissn1439-0531
dc.identifier.issn0936-6768
dc.identifier.urihttps://doi.org/10.1111/j.1439-0531.2009.01470.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95495
dc.identifier.wosidWOS:000284429900042
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final982
dc.pagina.inicio975
dc.revistaReproduction in domestic animals
dc.rightsacceso restringido
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titlePup Growth Rates and Breeding Female Weight Changes in Two Populations of Captive Bred Degus (<i>Octodon degus</i>), a Precocial Caviomorph Rodent
dc.typeartículo
dc.volumen45
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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