Milk composition of free-living yellow-pine chipmunks (<i>Tamias amoenus</i>)

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dc.contributor.authorVeloso, C
dc.contributor.authorPlace, NJ
dc.contributor.authorKenagy, GJ
dc.date.accessioned2025-01-21T01:09:46Z
dc.date.available2025-01-21T01:09:46Z
dc.date.issued2003
dc.description.abstractMilk is the sole food source of mammals during early postnatal development, and its composition may be modified to meet changing nutritional and energetic demands from birth to weaning. These demands are especially acute in small mammals that breed in highly seasonal environments. We investigated the temporal course of milk composition during lactation in free-living yellow-pine chipmunks, Tamias amoenus, a small altricial omnivorous rodent that produces a single annual litter immediately after emerging from hibernation. Over the course of lactation the total energy concentration of milk increased more than two-fold, to approximately 13 kJ ml(-1). The main component of the milk was lipids, which increased from 10 to 30% of total milk content by wet mass. Proteins increased from approximately 5 to 10%, whereas carbohydrates remained low, at 4-5%. The progressive augmentation of milk energy content during lactation contributes to the increased demands of rapid growth in this altricial species. (C) 2002 Elsevier Science Inc. All rights reserved.
dc.fuente.origenWOS
dc.identifier.eissn1531-4332
dc.identifier.issn1095-6433
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96618
dc.identifier.wosidWOS:000181525500016
dc.issue.numero2
dc.language.isoen
dc.pagina.final392
dc.pagina.inicio387
dc.revistaComparative biochemistry and physiology a-molecular & integrative physiology
dc.rightsacceso restringido
dc.subjectchipmunks
dc.subjectenergetics
dc.subjectgrowth
dc.subjectlactation
dc.subjectlipids
dc.subjectmilk composition
dc.subjectnutrition
dc.subjectTamias
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.titleMilk composition of free-living yellow-pine chipmunks (<i>Tamias amoenus</i>)
dc.typeartículo
dc.volumen134
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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