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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
06/05/1998 |
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Data da última atualização: |
27/03/2017 |
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Autoria: |
DeNIRO, M. J.; EPSTEIN, S. |
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Título: |
Influence of diet on the distribution of carbon isotopes in animals. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Geochimica et Cosmochimica Acta, v.42, p.495-506, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
The influence of diet on the distribution of carbon isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant carbon isotopic composition. The isotopic composition of the whole body of an animal reflects the isotopic composition of its diet, but the animal is on average enriched in...about 1% relative to the diet. In three of the four cases examined, the 13C enrichment of the whole body relative to the diet is balanced by a 13C depletion of the respired CO2. The isotopic relationships between the whole bodies of animals and their diets are similar for different species raised on the same diet and for the same species raised on different diets. However, the 13C values of whole bodies of individuals of a species raised on the same diet may differ by up to 2%. The relationships between the 13C 12C ratio of a tissue and the 13C/12C ratio of the diet depends both on the trype of tissue and on the nature of the diet. Many of the isotopic relationships among the major biochemical fractions, namely the lipid, carbohydrate and protein fractions, are qualitatively preseved as diet carbon is incorporated into the animal. However the different between the 13C values of a biochemical fraction in an animal and in its diet may be as large as 3%. The 13C values of the biochemical components collagen, chitin and the insoluble organic fractions of shells, all of which are often preserved in fossil material are related to the isotopic composition of the diet. MenosThe influence of diet on the distribution of carbon isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant carbon isotopic composition. The isotopic composition of the whole body of an animal reflects the isotopic composition of its diet, but the animal is on average enriched in...about 1% relative to the diet. In three of the four cases examined, the 13C enrichment of the whole body relative to the diet is balanced by a 13C depletion of the respired CO2. The isotopic relationships between the whole bodies of animals and their diets are similar for different species raised on the same diet and for the same species raised on different diets. However, the 13C values of whole bodies of individuals of a species raised on the same diet may differ by up to 2%. The relationships between the 13C 12C ratio of a tissue and the 13C/12C ratio of the diet depends both on the trype of tissue and on the nature of the diet. Many of the isotopic relationships among the major biochemical fractions, namely the lipid, carbohydrate and protein fractions, are qualitatively preseved as diet carbon is incorporated into the animal. However the different between the 13C values of a biochemical fraction in an animal and in its diet may be as large as 3%. The 13C values of the biochemical components collagen, chitin and the insoluble organic fractions of shells, all of which are often preserved in fossil material are related to the isotopic composition of... Mostrar Tudo |
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Palavras-Chave: |
Carbon isotopes; Distribuicao; Distribution. |
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Thesagro: |
Animal; Carbono; Dieta. |
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Thesaurus Nal: |
diet. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02064naa a2200217 a 4500
001 1792358
005 2017-03-27
008 1978 bl --- 0-- u #d
100 1 $aDeNIRO, M. J.
245 $aInfluence of diet on the distribution of carbon isotopes in animals.
260 $c1978
520 $aThe influence of diet on the distribution of carbon isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant carbon isotopic composition. The isotopic composition of the whole body of an animal reflects the isotopic composition of its diet, but the animal is on average enriched in...about 1% relative to the diet. In three of the four cases examined, the 13C enrichment of the whole body relative to the diet is balanced by a 13C depletion of the respired CO2. The isotopic relationships between the whole bodies of animals and their diets are similar for different species raised on the same diet and for the same species raised on different diets. However, the 13C values of whole bodies of individuals of a species raised on the same diet may differ by up to 2%. The relationships between the 13C 12C ratio of a tissue and the 13C/12C ratio of the diet depends both on the trype of tissue and on the nature of the diet. Many of the isotopic relationships among the major biochemical fractions, namely the lipid, carbohydrate and protein fractions, are qualitatively preseved as diet carbon is incorporated into the animal. However the different between the 13C values of a biochemical fraction in an animal and in its diet may be as large as 3%. The 13C values of the biochemical components collagen, chitin and the insoluble organic fractions of shells, all of which are often preserved in fossil material are related to the isotopic composition of the diet.
650 $adiet
650 $aAnimal
650 $aCarbono
650 $aDieta
653 $aCarbon isotopes
653 $aDistribuicao
653 $aDistribution
700 1 $aEPSTEIN, S.
773 $tGeochimica et Cosmochimica Acta$gv.42, p.495-506, 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
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