Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)

During lactation, both the nutritional and energetic requirements of suckling change gradually. These changes normally are accompanied by modifications in chemical composition of the milk. We investigated the temporal course of milk composition during lactation in a precocial caviomorph rodent, the...

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Autores principales:	VELOSO,CLAUDIO, KENAGY,G.J.
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2005
Materias:	degu precocial lactation energy lipids milk composition
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200008
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spelling	oai:scielo:S0716-078X20050002000082014-08-12Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)VELOSO,CLAUDIOKENAGY,G.J. degu precocial lactation energy lipids milk composition During lactation, both the nutritional and energetic requirements of suckling change gradually. These changes normally are accompanied by modifications in chemical composition of the milk. We investigated the temporal course of milk composition during lactation in a precocial caviomorph rodent, the "degu" (Octodon degus) under laboratory condition. Female degus were kept in laboratory during gestation and lactation and fed with commercial food pellets. Milk was collected at three stages of lactation: early (days 5-8, n = 12), middle (days 15-21, n = 7) and late (days 26-40, n = 6), and analyzed for protein, carbohydrates, lipids, ash, total solids and energy. On average, carbohydrates decreased from 3.1 ± 0.3 % (early) to 1.1 ± 0.3 % (late) during lactation; lipids, protein, ash, total solids and energy remained about the same. Lipids, the main component of the milk, were 17.3 % and protein remained near 4.4 %. Over lactation, total energy concentration of milk remained near 4.0 kJ mL-1. The maintenance of milk composition during lactation may be related to the initially high energetic and nutritional requirements associated with a precocial reproductive modeinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.78 n.2 20052005-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200008en10.4067/S0716-078X2005000200008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	degu precocial lactation energy lipids milk composition
spellingShingle	degu precocial lactation energy lipids milk composition VELOSO,CLAUDIO KENAGY,G.J. Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
description	During lactation, both the nutritional and energetic requirements of suckling change gradually. These changes normally are accompanied by modifications in chemical composition of the milk. We investigated the temporal course of milk composition during lactation in a precocial caviomorph rodent, the "degu" (Octodon degus) under laboratory condition. Female degus were kept in laboratory during gestation and lactation and fed with commercial food pellets. Milk was collected at three stages of lactation: early (days 5-8, n = 12), middle (days 15-21, n = 7) and late (days 26-40, n = 6), and analyzed for protein, carbohydrates, lipids, ash, total solids and energy. On average, carbohydrates decreased from 3.1 ± 0.3 % (early) to 1.1 ± 0.3 % (late) during lactation; lipids, protein, ash, total solids and energy remained about the same. Lipids, the main component of the milk, were 17.3 % and protein remained near 4.4 %. Over lactation, total energy concentration of milk remained near 4.0 kJ mL-1. The maintenance of milk composition during lactation may be related to the initially high energetic and nutritional requirements associated with a precocial reproductive mode
author	VELOSO,CLAUDIO KENAGY,G.J.
author_facet	VELOSO,CLAUDIO KENAGY,G.J.
author_sort	VELOSO,CLAUDIO
title	Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
title_short	Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
title_full	Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
title_fullStr	Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
title_full_unstemmed	Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
title_sort	temporal dynamics of milk composition of the precocial caviomorph octodon degus (rodentia: octodontidae)
publisher	Sociedad de Biología de Chile
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200008
work_keys_str_mv	AT velosoclaudio temporaldynamicsofmilkcompositionoftheprecocialcaviomorphoctodondegusrodentiaoctodontidae AT kenagygj temporaldynamicsofmilkcompositionoftheprecocialcaviomorphoctodondegusrodentiaoctodontidae
_version_	1718439573697069056

Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)

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