Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar

The Weddell seal (Leptonychotes weddellii Lesson, 1826) has in common with other antarctic phocids, a lactation characterized by high rates of nutrients and energy transfer. The study of the variations in the milk composition contributes to the knowledge about this particular model of lactation and...

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Autores principales:	Márquez,María E, Carlini,Alejandro R, Baroni,Andrea V, Ronayne de Ferrer,Patricia A
Lenguaje:	Spanish / Castilian
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2008
Materias:	Antarctic pinnipeds milk protein energy content lactation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000100016
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spelling	oai:scielo:S0718-195720080001000162008-07-21Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminarMárquez,María ECarlini,Alejandro RBaroni,Andrea VRonayne de Ferrer,Patricia A Antarctic pinnipeds milk protein energy content lactation The Weddell seal (Leptonychotes weddellii Lesson, 1826) has in common with other antarctic phocids, a lactation characterized by high rates of nutrients and energy transfer. The study of the variations in the milk composition contributes to the knowledge about this particular model of lactation and allows the acquisition of basic information for veterinary medical studies. The present study shows the preliminary results of the analyses of the variations in milk fat and protein levels from four females sampled sequentially along lactation at Laurie Island, South Orkney Islands during the 2002 breeding season. Important inter individual variations were observed among the sampled females, but a similar pattern along time which showed: a) an increasing trend for fat levels during the first half of the lactation period (13.04 to 61.25 g 100 g-1), and then maintaining high values (41.21 to 48.88 g 100 g-1) from this point until the end of suckling, and b) total protein levels fluctuated within a narrow range (8.10 to 11.74 g 100 g-1) along the period. Fat and protein values are similar to those reported for other phocids, allowing for the rapid growth and the formation of the blubber to protect the pup and assure its survivalinfo:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.43 n.1 20082008-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000100016es10.4067/S0718-19572008000100016
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Antarctic pinnipeds milk protein energy content lactation
spellingShingle	Antarctic pinnipeds milk protein energy content lactation Márquez,María E Carlini,Alejandro R Baroni,Andrea V Ronayne de Ferrer,Patricia A Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
description	The Weddell seal (Leptonychotes weddellii Lesson, 1826) has in common with other antarctic phocids, a lactation characterized by high rates of nutrients and energy transfer. The study of the variations in the milk composition contributes to the knowledge about this particular model of lactation and allows the acquisition of basic information for veterinary medical studies. The present study shows the preliminary results of the analyses of the variations in milk fat and protein levels from four females sampled sequentially along lactation at Laurie Island, South Orkney Islands during the 2002 breeding season. Important inter individual variations were observed among the sampled females, but a similar pattern along time which showed: a) an increasing trend for fat levels during the first half of the lactation period (13.04 to 61.25 g 100 g-1), and then maintaining high values (41.21 to 48.88 g 100 g-1) from this point until the end of suckling, and b) total protein levels fluctuated within a narrow range (8.10 to 11.74 g 100 g-1) along the period. Fat and protein values are similar to those reported for other phocids, allowing for the rapid growth and the formation of the blubber to protect the pup and assure its survival
author	Márquez,María E Carlini,Alejandro R Baroni,Andrea V Ronayne de Ferrer,Patricia A
author_facet	Márquez,María E Carlini,Alejandro R Baroni,Andrea V Ronayne de Ferrer,Patricia A
author_sort	Márquez,María E
title	Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
title_short	Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
title_full	Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
title_fullStr	Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
title_full_unstemmed	Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar
title_sort	variaciones de los niveles de grasa y proteína en la leche de la foca de weddell (leptonychotes weddellii lesson, 1826) en la isla laurie, antártica: estudio preliminar
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000100016
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Variaciones de los niveles de grasa y proteína en la leche de la foca de Weddell (Leptonychotes weddellii Lesson, 1826) en la isla Laurie, Antártica: estudio preliminar

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