Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits
- Autores
- Rios, Juan Manuel; Barceló, Gonzalo F.; Narváez, Cristobal; Maldonado, Karin; Sabat, Pablo
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Specific fatty acids (FA) such as unsaturated (UFA) and saturated (SFA) fatty acids contained in foods are key factors in the nutritional ecology of birds. By means of a field and experimental approach, we evaluated the effect of diet on the activity of three esterases involved in FA hydrolysis; carboxylesterase (CE: 4-NPA-CE and a-NA-CE) and butyrylcholinesterase, in two South American passerines: the omnivorous rufous-collared sparrow (Zonotrichia capensis) and the granivorous common diuca-finch (Diuca diuca). The activity of the three esterases was measured in the intestines of freshly caught individuals over two distinct seasons and also after a chronic intake of a UFA-rich or SFA-rich diet in the laboratory. In turn, we assessed the feeding responses of the birds choosing amongst diets contrasting in the kind of specific FA (UFA- vs. SFA-treated diets). During summer, field CE activities (4-NPA-CE and a-NA-CE) in the small intestine were higher in the rufous-collared sparrow (25.3 ± 3.3 and 81.4 ± 10.8 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (10.0 ± 3.0 and 33.9 ± 13.1 µmol min−1 g tissue−1, respectively). Two hour feeding trial test indicated that both species exhibited a clear preference for UFA-treated diets. On average, the rufous-collared sparrow consumed 0.46 g 2 h−1 of UFA-rich diets and 0.12 g 2 h−1 of SFA-rich diets. In turn, the consumption pattern of the common diuca-finch averaged 0.73 and 0.16 g 2 h−1 for UFA-rich and SFA-rich diets, respectively. After a month of dietary acclimation to UFA-rich and SFA-rich diets, both species maintained body mass irrespective of the dietary regime. Additionally, the intestinal 4-NPA-CE activity exhibited by birds fed on a UFA-rich or SFA-rich diet was higher in the rufous-collared sparrow (39.0 ± 5.3 and 44.2 ± 7.3 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (13.3 ± 1.9 and 11.2 ± 1.4 µmol min−1 g tissue−1, respectively). Finally, the intestinal a-NA-CE activity exhibited by the rufous-collared sparrow was about two times higher when consuming an UFA-rich diet. Our results suggest that the rufus-collared sparrow exhibits a greater capacity for intestinal FA hydrolysis, which would allow it to better deal with fats from different sources.
Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad de Chile; Chile
Fil: Barceló, Gonzalo F.. Universidad de Chile; Chile
Fil: Narváez, Cristobal. Universidad de Chile; Chile
Fil: Maldonado, Karin. Universidad de Chile; Chile
Fil: Sabat, Pablo. Universidad de Chile; Chile. Pontificia Universidad Católica de Chile; Chile - Materia
-
Birds
Butyrylcholinesterase
Carboxylesterase
Fatty Acids
Food Habits - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/32013
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spelling |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habitsRios, Juan ManuelBarceló, Gonzalo F.Narváez, CristobalMaldonado, KarinSabat, PabloBirdsButyrylcholinesteraseCarboxylesteraseFatty AcidsFood Habitshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Specific fatty acids (FA) such as unsaturated (UFA) and saturated (SFA) fatty acids contained in foods are key factors in the nutritional ecology of birds. By means of a field and experimental approach, we evaluated the effect of diet on the activity of three esterases involved in FA hydrolysis; carboxylesterase (CE: 4-NPA-CE and a-NA-CE) and butyrylcholinesterase, in two South American passerines: the omnivorous rufous-collared sparrow (Zonotrichia capensis) and the granivorous common diuca-finch (Diuca diuca). The activity of the three esterases was measured in the intestines of freshly caught individuals over two distinct seasons and also after a chronic intake of a UFA-rich or SFA-rich diet in the laboratory. In turn, we assessed the feeding responses of the birds choosing amongst diets contrasting in the kind of specific FA (UFA- vs. SFA-treated diets). During summer, field CE activities (4-NPA-CE and a-NA-CE) in the small intestine were higher in the rufous-collared sparrow (25.3 ± 3.3 and 81.4 ± 10.8 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (10.0 ± 3.0 and 33.9 ± 13.1 µmol min−1 g tissue−1, respectively). Two hour feeding trial test indicated that both species exhibited a clear preference for UFA-treated diets. On average, the rufous-collared sparrow consumed 0.46 g 2 h−1 of UFA-rich diets and 0.12 g 2 h−1 of SFA-rich diets. In turn, the consumption pattern of the common diuca-finch averaged 0.73 and 0.16 g 2 h−1 for UFA-rich and SFA-rich diets, respectively. After a month of dietary acclimation to UFA-rich and SFA-rich diets, both species maintained body mass irrespective of the dietary regime. Additionally, the intestinal 4-NPA-CE activity exhibited by birds fed on a UFA-rich or SFA-rich diet was higher in the rufous-collared sparrow (39.0 ± 5.3 and 44.2 ± 7.3 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (13.3 ± 1.9 and 11.2 ± 1.4 µmol min−1 g tissue−1, respectively). Finally, the intestinal a-NA-CE activity exhibited by the rufous-collared sparrow was about two times higher when consuming an UFA-rich diet. Our results suggest that the rufus-collared sparrow exhibits a greater capacity for intestinal FA hydrolysis, which would allow it to better deal with fats from different sources.Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad de Chile; ChileFil: Barceló, Gonzalo F.. Universidad de Chile; ChileFil: Narváez, Cristobal. Universidad de Chile; ChileFil: Maldonado, Karin. Universidad de Chile; ChileFil: Sabat, Pablo. Universidad de Chile; Chile. Pontificia Universidad Católica de Chile; ChileSpringer Heidelberg2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32013Sabat, Pablo; Maldonado, Karin; Narváez, Cristobal; Barceló, Gonzalo F.; Rios, Juan Manuel; Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits; Springer Heidelberg; Journal of Comparative Physiology B: Biochemical, Systems and Environmental Physiology; 184; 6; 7-2014; 729-7390174-15781432-136XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00360-014-0832-1info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00360-014-0832-1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:24Zoai:ri.conicet.gov.ar:11336/32013instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:42:24.915CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
title |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
spellingShingle |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits Rios, Juan Manuel Birds Butyrylcholinesterase Carboxylesterase Fatty Acids Food Habits |
title_short |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
title_full |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
title_fullStr |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
title_full_unstemmed |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
title_sort |
Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits |
dc.creator.none.fl_str_mv |
Rios, Juan Manuel Barceló, Gonzalo F. Narváez, Cristobal Maldonado, Karin Sabat, Pablo |
author |
Rios, Juan Manuel |
author_facet |
Rios, Juan Manuel Barceló, Gonzalo F. Narváez, Cristobal Maldonado, Karin Sabat, Pablo |
author_role |
author |
author2 |
Barceló, Gonzalo F. Narváez, Cristobal Maldonado, Karin Sabat, Pablo |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Birds Butyrylcholinesterase Carboxylesterase Fatty Acids Food Habits |
topic |
Birds Butyrylcholinesterase Carboxylesterase Fatty Acids Food Habits |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Specific fatty acids (FA) such as unsaturated (UFA) and saturated (SFA) fatty acids contained in foods are key factors in the nutritional ecology of birds. By means of a field and experimental approach, we evaluated the effect of diet on the activity of three esterases involved in FA hydrolysis; carboxylesterase (CE: 4-NPA-CE and a-NA-CE) and butyrylcholinesterase, in two South American passerines: the omnivorous rufous-collared sparrow (Zonotrichia capensis) and the granivorous common diuca-finch (Diuca diuca). The activity of the three esterases was measured in the intestines of freshly caught individuals over two distinct seasons and also after a chronic intake of a UFA-rich or SFA-rich diet in the laboratory. In turn, we assessed the feeding responses of the birds choosing amongst diets contrasting in the kind of specific FA (UFA- vs. SFA-treated diets). During summer, field CE activities (4-NPA-CE and a-NA-CE) in the small intestine were higher in the rufous-collared sparrow (25.3 ± 3.3 and 81.4 ± 10.8 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (10.0 ± 3.0 and 33.9 ± 13.1 µmol min−1 g tissue−1, respectively). Two hour feeding trial test indicated that both species exhibited a clear preference for UFA-treated diets. On average, the rufous-collared sparrow consumed 0.46 g 2 h−1 of UFA-rich diets and 0.12 g 2 h−1 of SFA-rich diets. In turn, the consumption pattern of the common diuca-finch averaged 0.73 and 0.16 g 2 h−1 for UFA-rich and SFA-rich diets, respectively. After a month of dietary acclimation to UFA-rich and SFA-rich diets, both species maintained body mass irrespective of the dietary regime. Additionally, the intestinal 4-NPA-CE activity exhibited by birds fed on a UFA-rich or SFA-rich diet was higher in the rufous-collared sparrow (39.0 ± 5.3 and 44.2 ± 7.3 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (13.3 ± 1.9 and 11.2 ± 1.4 µmol min−1 g tissue−1, respectively). Finally, the intestinal a-NA-CE activity exhibited by the rufous-collared sparrow was about two times higher when consuming an UFA-rich diet. Our results suggest that the rufus-collared sparrow exhibits a greater capacity for intestinal FA hydrolysis, which would allow it to better deal with fats from different sources. Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad de Chile; Chile Fil: Barceló, Gonzalo F.. Universidad de Chile; Chile Fil: Narváez, Cristobal. Universidad de Chile; Chile Fil: Maldonado, Karin. Universidad de Chile; Chile Fil: Sabat, Pablo. Universidad de Chile; Chile. Pontificia Universidad Católica de Chile; Chile |
description |
Specific fatty acids (FA) such as unsaturated (UFA) and saturated (SFA) fatty acids contained in foods are key factors in the nutritional ecology of birds. By means of a field and experimental approach, we evaluated the effect of diet on the activity of three esterases involved in FA hydrolysis; carboxylesterase (CE: 4-NPA-CE and a-NA-CE) and butyrylcholinesterase, in two South American passerines: the omnivorous rufous-collared sparrow (Zonotrichia capensis) and the granivorous common diuca-finch (Diuca diuca). The activity of the three esterases was measured in the intestines of freshly caught individuals over two distinct seasons and also after a chronic intake of a UFA-rich or SFA-rich diet in the laboratory. In turn, we assessed the feeding responses of the birds choosing amongst diets contrasting in the kind of specific FA (UFA- vs. SFA-treated diets). During summer, field CE activities (4-NPA-CE and a-NA-CE) in the small intestine were higher in the rufous-collared sparrow (25.3 ± 3.3 and 81.4 ± 10.8 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (10.0 ± 3.0 and 33.9 ± 13.1 µmol min−1 g tissue−1, respectively). Two hour feeding trial test indicated that both species exhibited a clear preference for UFA-treated diets. On average, the rufous-collared sparrow consumed 0.46 g 2 h−1 of UFA-rich diets and 0.12 g 2 h−1 of SFA-rich diets. In turn, the consumption pattern of the common diuca-finch averaged 0.73 and 0.16 g 2 h−1 for UFA-rich and SFA-rich diets, respectively. After a month of dietary acclimation to UFA-rich and SFA-rich diets, both species maintained body mass irrespective of the dietary regime. Additionally, the intestinal 4-NPA-CE activity exhibited by birds fed on a UFA-rich or SFA-rich diet was higher in the rufous-collared sparrow (39.0 ± 5.3 and 44.2 ± 7.3 µmol min−1 g tissue−1, respectively) than in the common diuca-finch (13.3 ± 1.9 and 11.2 ± 1.4 µmol min−1 g tissue−1, respectively). Finally, the intestinal a-NA-CE activity exhibited by the rufous-collared sparrow was about two times higher when consuming an UFA-rich diet. Our results suggest that the rufus-collared sparrow exhibits a greater capacity for intestinal FA hydrolysis, which would allow it to better deal with fats from different sources. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/32013 Sabat, Pablo; Maldonado, Karin; Narváez, Cristobal; Barceló, Gonzalo F.; Rios, Juan Manuel; Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits; Springer Heidelberg; Journal of Comparative Physiology B: Biochemical, Systems and Environmental Physiology; 184; 6; 7-2014; 729-739 0174-1578 1432-136X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/32013 |
identifier_str_mv |
Sabat, Pablo; Maldonado, Karin; Narváez, Cristobal; Barceló, Gonzalo F.; Rios, Juan Manuel; Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits; Springer Heidelberg; Journal of Comparative Physiology B: Biochemical, Systems and Environmental Physiology; 184; 6; 7-2014; 729-739 0174-1578 1432-136X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00360-014-0832-1 info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00360-014-0832-1 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Springer Heidelberg |
publisher.none.fl_str_mv |
Springer Heidelberg |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613336677744640 |
score |
13.070432 |