Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/27462 |
Resumo: | Milk is the only external energy source for mammals in their early stages of life. Its composition varies during lactation in baleen whales and pinnipeds, while only descriptive studies are available for odontocetes. The aim of this work was to identify the components of the milk of franciscana, Pontoporia blainvillei, from southern Brazil. Samples were manually collected from lactating females (N = 5) incidentally caught in the gill-net fishery. The amount of fat, protein, carbohydrate, mineral and trace metal content, and caloric value of the samples were estimated. Milk of the franciscana dolphin presented mean fat, protein and carbohydrate concentrations similar to those described for other coastal species. A significant increase in fat concentration was observed in winter months, with a higher energy density. Potassium was the mineral found in higher amounts. Zinc, mercury and copper were detected in low concentrations. Due to different habitat conditions along the species distribution, the presence of a highly seasonal reproductive period and inter-population genetic variability, studies on milk composition in other areas is recommended. |
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Caon, Glauco da SilvaSecchi, Eduardo ResendeCapp, EdisonKucharski, Luiz Carlos Rios2011-01-21T05:59:02Z20080025-3154http://hdl.handle.net/10183/27462000719153Milk is the only external energy source for mammals in their early stages of life. Its composition varies during lactation in baleen whales and pinnipeds, while only descriptive studies are available for odontocetes. The aim of this work was to identify the components of the milk of franciscana, Pontoporia blainvillei, from southern Brazil. Samples were manually collected from lactating females (N = 5) incidentally caught in the gill-net fishery. The amount of fat, protein, carbohydrate, mineral and trace metal content, and caloric value of the samples were estimated. Milk of the franciscana dolphin presented mean fat, protein and carbohydrate concentrations similar to those described for other coastal species. A significant increase in fat concentration was observed in winter months, with a higher energy density. Potassium was the mineral found in higher amounts. Zinc, mercury and copper were detected in low concentrations. Due to different habitat conditions along the species distribution, the presence of a highly seasonal reproductive period and inter-population genetic variability, studies on milk composition in other areas is recommended.application/pdfengJournal of the Marine Biological Association of the United Kingdom. Cambridge, Inglaterra. Vol. 88, no.6 (Sept. 2008), p. 1099-1101Pontoporia blainvilleiGolfinhos : Fisiologia animalLeiteContaminantesRio Grande do SulMilk compositionMineralsContaminantsFranciscanaPontoporia blainvilleiBrazilMilk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern BrazilEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000719153.pdf000719153.pdfTexto completo (inglês)application/pdf78413http://www.lume.ufrgs.br/bitstream/10183/27462/1/000719153.pdf2c2a2d7c5e10c04cd2a1bafc1e413efaMD51TEXT000719153.pdf.txt000719153.pdf.txtExtracted Texttext/plain14382http://www.lume.ufrgs.br/bitstream/10183/27462/2/000719153.pdf.txtd54291cda9c214499fe52a931ab1aeb3MD52THUMBNAIL000719153.pdf.jpg000719153.pdf.jpgGenerated Thumbnailimage/jpeg1896http://www.lume.ufrgs.br/bitstream/10183/27462/3/000719153.pdf.jpg4b725a9e70d71a2836a6e50532691828MD5310183/274622021-05-26 04:31:51.081737oai:www.lume.ufrgs.br:10183/27462Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-26T07:31:51Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
title |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
spellingShingle |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil Caon, Glauco da Silva Pontoporia blainvillei Golfinhos : Fisiologia animal Leite Contaminantes Rio Grande do Sul Milk composition Minerals Contaminants Franciscana Pontoporia blainvillei Brazil |
title_short |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
title_full |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
title_fullStr |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
title_full_unstemmed |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
title_sort |
Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil |
author |
Caon, Glauco da Silva |
author_facet |
Caon, Glauco da Silva Secchi, Eduardo Resende Capp, Edison Kucharski, Luiz Carlos Rios |
author_role |
author |
author2 |
Secchi, Eduardo Resende Capp, Edison Kucharski, Luiz Carlos Rios |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Caon, Glauco da Silva Secchi, Eduardo Resende Capp, Edison Kucharski, Luiz Carlos Rios |
dc.subject.por.fl_str_mv |
Pontoporia blainvillei Golfinhos : Fisiologia animal Leite Contaminantes Rio Grande do Sul |
topic |
Pontoporia blainvillei Golfinhos : Fisiologia animal Leite Contaminantes Rio Grande do Sul Milk composition Minerals Contaminants Franciscana Pontoporia blainvillei Brazil |
dc.subject.eng.fl_str_mv |
Milk composition Minerals Contaminants Franciscana Pontoporia blainvillei Brazil |
description |
Milk is the only external energy source for mammals in their early stages of life. Its composition varies during lactation in baleen whales and pinnipeds, while only descriptive studies are available for odontocetes. The aim of this work was to identify the components of the milk of franciscana, Pontoporia blainvillei, from southern Brazil. Samples were manually collected from lactating females (N = 5) incidentally caught in the gill-net fishery. The amount of fat, protein, carbohydrate, mineral and trace metal content, and caloric value of the samples were estimated. Milk of the franciscana dolphin presented mean fat, protein and carbohydrate concentrations similar to those described for other coastal species. A significant increase in fat concentration was observed in winter months, with a higher energy density. Potassium was the mineral found in higher amounts. Zinc, mercury and copper were detected in low concentrations. Due to different habitat conditions along the species distribution, the presence of a highly seasonal reproductive period and inter-population genetic variability, studies on milk composition in other areas is recommended. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2011-01-21T05:59:02Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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http://hdl.handle.net/10183/27462 |
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0025-3154 |
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000719153 |
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http://hdl.handle.net/10183/27462 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of the Marine Biological Association of the United Kingdom. Cambridge, Inglaterra. Vol. 88, no.6 (Sept. 2008), p. 1099-1101 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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