Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island

Deuterium-labeled water was used to measure changes in the proximate body composition during the lactation period and after weaning in southern elephant seal pups at King George Island, South Shetland Islands, Antarctica. During the lactation period (23.0 ± 1.4 days) pups gained a mean of 4.9 ± 0.5...

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Autores principales: Carlini, A.R., Panarello, H.O., Marquez, M.E.I., Daneri, G.A., Soave, G.E.
Formato: JOUR
Materias:
biochemical composition
body condition
energetics
lactation
pinniped
weaning
Antarctica
King George Island
South Shetland Islands
elephant
Mammalia
Mirounga leonina
Phocidae
Pinnipedia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_07224060_v23_n6_p437_Carlini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_07224060_v23_n6_p437_Carlini
record_format dspace
spelling todo:paper_07224060_v23_n6_p437_Carlini2023-10-03T15:36:57Z Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island Carlini, A.R. Panarello, H.O. Marquez, M.E.I. Daneri, G.A. Soave, G.E. biochemical composition body condition energetics lactation pinniped weaning Antarctica King George Island South Shetland Islands elephant Mammalia Mirounga leonina Mirounga leonina Phocidae Pinnipedia Deuterium-labeled water was used to measure changes in the proximate body composition during the lactation period and after weaning in southern elephant seal pups at King George Island, South Shetland Islands, Antarctica. During the lactation period (23.0 ± 1.4 days) pups gained a mean of 4.9 ± 0.5 kg/day (n = 7). Of the total mass gain (112 ± 8 kg), 38% was water, 48% was fat, and 11% was protein. This represented an increase in total body gross energy of 2437 ± 145 MJ. The proportion of body mass represented by fat was less than 2% at birth, increasing to 35 ± 2% at weaning. We followed the pups during a mean period of 36 ± 3 days after weaning. During this period, pups had a mean loss of 1.21 ± 0.10 kg/day (n = 7) comprising 39% water, 48% fat, and 12% protein. The energy cost over this period was 952 ± 168 MJ, which represented, on average, 39% of the total energy gained during the suckling period. Fil:Panarello, H.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07224060_v23_n6_p437_Carlini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic biochemical composition
body condition
energetics
lactation
pinniped
weaning
Antarctica
King George Island
South Shetland Islands
elephant
Mammalia
Mirounga leonina
Mirounga leonina
Phocidae
Pinnipedia
spellingShingle biochemical composition
body condition
energetics
lactation
pinniped
weaning
Antarctica
King George Island
South Shetland Islands
elephant
Mammalia
Mirounga leonina
Mirounga leonina
Phocidae
Pinnipedia
Carlini, A.R.
Panarello, H.O.
Marquez, M.E.I.
Daneri, G.A.
Soave, G.E.
Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
topic_facet biochemical composition
body condition
energetics
lactation
pinniped
weaning
Antarctica
King George Island
South Shetland Islands
elephant
Mammalia
Mirounga leonina
Mirounga leonina
Phocidae
Pinnipedia
description Deuterium-labeled water was used to measure changes in the proximate body composition during the lactation period and after weaning in southern elephant seal pups at King George Island, South Shetland Islands, Antarctica. During the lactation period (23.0 ± 1.4 days) pups gained a mean of 4.9 ± 0.5 kg/day (n = 7). Of the total mass gain (112 ± 8 kg), 38% was water, 48% was fat, and 11% was protein. This represented an increase in total body gross energy of 2437 ± 145 MJ. The proportion of body mass represented by fat was less than 2% at birth, increasing to 35 ± 2% at weaning. We followed the pups during a mean period of 36 ± 3 days after weaning. During this period, pups had a mean loss of 1.21 ± 0.10 kg/day (n = 7) comprising 39% water, 48% fat, and 12% protein. The energy cost over this period was 952 ± 168 MJ, which represented, on average, 39% of the total energy gained during the suckling period.
format JOUR
author Carlini, A.R.
Panarello, H.O.
Marquez, M.E.I.
Daneri, G.A.
Soave, G.E.
author_facet Carlini, A.R.
Panarello, H.O.
Marquez, M.E.I.
Daneri, G.A.
Soave, G.E.
author_sort Carlini, A.R.
title Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
title_short Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
title_full Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
title_fullStr Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
title_full_unstemmed Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
title_sort energy gain and loss during lactation and postweaning in southern elephant seal pups (mirounga leonina) at king george island
url http://hdl.handle.net/20.500.12110/paper_07224060_v23_n6_p437_Carlini
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