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Abstract:

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.

Registro:

Documento: Artículo
Título:Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island
Autor:Carlini, A.R.; Panarello, H.O.; Marquez, M.E.I.; Daneri, G.A.; Soave, G.E.
Filiación:Departamento de Ciencias Biologicas, Instituto Antártico Argentino, Cerrito 1248, (1010) Buenos Aires, Argentina
Inst. Geocronologia Geologia I., Pabellón INGEIS, Ciudad Universitaria, (1248) Buenos Aires, Argentina
Museo Argentino de Cie. Naturales, B. Rivadavia (MACNBR), Div. Mastozoología, Av. Angel Gallardo 470, (1405) Buenos Aires, Argentina
Depto. Cientifico Zoologia V., Fac. de Ciencias Naturales y Museo, Paseo del Bosque S/N, (1900) La Plata, Argentina
Palabras clave:biochemical composition; body condition; energetics; lactation; pinniped; weaning; Antarctica; King George Island; South Shetland Islands; elephant; Mammalia; Mirounga leonina; Mirounga leonina; Phocidae; Pinnipedia
Año:2000
Volumen:23
Número:6
Página de inicio:437
Página de fin:440
DOI: http://dx.doi.org/10.1007/s003000050465
Título revista:Polar Biology
Título revista abreviado:Polar Biol.
ISSN:07224060
CODEN:POBID
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n6_p437_Carlini

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Citas:

---------- APA ----------
Carlini, A.R., Panarello, H.O., Marquez, M.E.I., Daneri, G.A. & Soave, G.E. (2000) . Energy gain and loss during lactation and postweaning in southern elephant seal pups (Mirounga leonina) at King George Island. Polar Biology, 23(6), 437-440.
http://dx.doi.org/10.1007/s003000050465
---------- CHICAGO ----------
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" . Polar Biology 23, no. 6 (2000) : 437-440.
http://dx.doi.org/10.1007/s003000050465
---------- MLA ----------
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" . Polar Biology, vol. 23, no. 6, 2000, pp. 437-440.
http://dx.doi.org/10.1007/s003000050465
---------- VANCOUVER ----------
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. Polar Biol. 2000;23(6):437-440.
http://dx.doi.org/10.1007/s003000050465