Dassis, M.; Rodríguez, D.H.; Ieno, E.N.; Denuncio, P.E.; Loureiro, J.; Davis, R.W. "Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)" (2014) Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology. 168:63-68
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Bio-energetic models used to characterize an animal's energy budget require the accurate estimate of different variables such as the resting metabolic rate (RMR) and the heat increment of feeding (HIF). In this study, we estimated the in air RMR of wild juvenile South American fur seals (SAFS; Arctocephalus australis) temporarily held in captivity by measuring oxygen consumption while at rest in a postabsorptive condition. HIF, which is an increase in metabolic rate associated with digestion, assimilation and nutrient interconversion, was estimated as the difference in resting metabolic rate between the postabsorptive condition and the first 3.5h postprandial. As data were hierarchically structured, linear mixed effect models were used to compare RMR measures under both physiological conditions. Results indicated a significant increase (61%) for the postprandial RMR compared to the postabsorptive condition, estimated at 17.93±1.84 and 11.15±1.91mL O2 min-1kg-1, respectively. These values constitute the first estimation of RMR and HIF in this species, and should be considered in the energy budgets for juvenile SAFS foraging at-sea. © 2013 Elsevier Inc.


Documento: Artículo
Título:Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
Autor:Dassis, M.; Rodríguez, D.H.; Ieno, E.N.; Denuncio, P.E.; Loureiro, J.; Davis, R.W.
Filiación:Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CONICET, Funes 3350, 7600 Mar del Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Rivadavia 1917, PB, C1033AAJ Ciudad Autónoma de Buenos Aires, Argentina
Highland Statistics Ltd., P.O. Box 82, Av. Escandinavia 72, 03130, Spain
Fundación Mundo Marino, Avenida Décima N 157, 6-7105 San Clemente del Tuyú, Argentina
Department of Marine Biology, Texas A andM University at Galveston, 200 Seawolf Parkway, Ocean and Coastal Studies Building, Galveston, TX 77553, United States
Idioma: Inglés
Palabras clave:Arctocephalus australis; Energetics; Fur seals; Heat increment of feeding; Linear mixed effect models; Resting metabolic rate; air; article; bioenergy; controlled study; digestion; foraging; heat increment of feeding; juvenile animal; male; metabolic rate; nonhuman; nutrient; oxygen consumption; postprandial state; rest; resting metabolic rate; seal
Página de inicio:63
Página de fin:68
Título revista:Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology
Título revista abreviado:Comp. Biochem. Physiol. A Mol. Integr. Physiol.


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---------- APA ----------
Dassis, M., Rodríguez, D.H., Ieno, E.N., Denuncio, P.E., Loureiro, J. & Davis, R.W. (2014) . Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis). Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology, 168, 63-68.
---------- CHICAGO ----------
Dassis, M., Rodríguez, D.H., Ieno, E.N., Denuncio, P.E., Loureiro, J., Davis, R.W. "Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)" . Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology 168 (2014) : 63-68.
---------- MLA ----------
Dassis, M., Rodríguez, D.H., Ieno, E.N., Denuncio, P.E., Loureiro, J., Davis, R.W. "Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)" . Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology, vol. 168, 2014, pp. 63-68.
---------- VANCOUVER ----------
Dassis, M., Rodríguez, D.H., Ieno, E.N., Denuncio, P.E., Loureiro, J., Davis, R.W. Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis). Comp. Biochem. Physiol. A Mol. Integr. Physiol. 2014;168:63-68.