Milk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil

dc.creatorCaon, Glauco da Silva
dc.creatorSecchi, Eduardo Resende
dc.creatorCapp, Edison
dc.creatorKucharski, Luiz Carlos Rios
dc.date2011-01-21T05:59:02Z
dc.date2008
dc.identifier0025-3154
dc.identifierhttp://hdl.handle.net/10183/27462
dc.identifier000719153
dc.descriptionMilk 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.
dc.formatapplication/pdf
dc.languageeng
dc.relationJournal of the Marine Biological Association of the United Kingdom. Cambridge, Inglaterra. Vol. 88, no.6 (Sept. 2008), p. 1099-1101
dc.rightsOpen Access
dc.subjectMilk composition
dc.subjectMinerals
dc.subjectContaminants
dc.subjectFranciscana
dc.subjectPontoporia blainvillei
dc.subjectBrazil
dc.subjectPontoporia blainvillei
dc.subjectGolfinhos : Fisiologia animal
dc.subjectLeite
dc.subjectContaminantes
dc.subjectRio Grande do Sul
dc.titleMilk composition of franciscana dolphin (Pontoporia blainvillei) from Rio Grande do Sul, southern Brazil
dc.typeArtigo de periódico
dc.typeEstrangeiro


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