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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
28/01/2016 |
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Data da última atualização: |
09/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
INACIO, C. T.; CHALK, P. M. |
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Afiliação: |
CAIO DE TEVES INACIO, CNPS; PHILLIP M. CHALK, UNIVERSITY OF MELBOURNE. |
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Título: |
Principles and limitations of stable isotopes in differentiating organic and conventional foodstuffs: 2. Animal products. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Critical Reviews in Food Science and Nutrition, v. 57, n. 1, p. 181-196, 2017. |
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DOI: |
https://doi.org/10.1080/10408398.2014.887056 |
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Idioma: |
Inglês |
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Conteúdo: |
In this review, we examine the variation in stable isotope signatures of the lighter elements (2H, 13C, d15N, d18O, 34S) of tissues and excreta of domesticated animals, the factors affecting the isotopic composition of animal tissues and whether stable isotopes may be used to differentiate organic and conventional modes of animal husbandry. The main factors affecting the d13C signatures of livestock are the C3 / C4 composition of the diet, the relative digestibility of the diet components, metabolic turnover, tissue and compound specificity, growth rate and animal age. 15N signatures of sheep and cattle products have been related mainly to diet signatures, which are quite variable among farms and between years. Although few data exist, a minor influence in 15N signatures of animal products was attributed to N losses at the farm level, whereas stocking rate showed divergent findings. Correlations between mode of production and 2H and d18O have not been established, and only in one case of an animal product was d34S a satisfactory marker for mode of production. While many data exist on diet-tissue isotopic discrimination values among domesticated animals, there is a paucity of data which allow a direct and statistically-verifiable comparison of the differences in the isotopic signatures of organically- and conventionally-grown animal products. The few comparisons are confined to beef, milk and egg yolk, with no data for swine or lamb products. 13C appears to be the most promising isotopic marker to differentiate organic and conventional production systems when maize (C4) is present in the conventional animal diet. However, 13C may be unsuitable under tropical conditions where C4 grasses are abundant, and where grass-based husbandry is predominant in both conventional and organic systems. At the present time there is no universal analytical method that can be applied to differentiate organic and conventional animal products. MenosIn this review, we examine the variation in stable isotope signatures of the lighter elements (2H, 13C, d15N, d18O, 34S) of tissues and excreta of domesticated animals, the factors affecting the isotopic composition of animal tissues and whether stable isotopes may be used to differentiate organic and conventional modes of animal husbandry. The main factors affecting the d13C signatures of livestock are the C3 / C4 composition of the diet, the relative digestibility of the diet components, metabolic turnover, tissue and compound specificity, growth rate and animal age. 15N signatures of sheep and cattle products have been related mainly to diet signatures, which are quite variable among farms and between years. Although few data exist, a minor influence in 15N signatures of animal products was attributed to N losses at the farm level, whereas stocking rate showed divergent findings. Correlations between mode of production and 2H and d18O have not been established, and only in one case of an animal product was d34S a satisfactory marker for mode of production. While many data exist on diet-tissue isotopic discrimination values among domesticated animals, there is a paucity of data which allow a direct and statistically-verifiable comparison of the differences in the isotopic signatures of organically- and conventionally-grown animal products. The few comparisons are confined to beef, milk and egg yolk, with no data for swine or lamb products. 13C appears to be the most promis... Mostrar Tudo |
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Palavras-Chave: |
Criação animal; Dieta animal; Isótopos estáveis. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02594naa a2200181 a 4500
001 2035412
005 2021-11-09
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/10408398.2014.887056$2DOI
100 1 $aINACIO, C. T.
245 $aPrinciples and limitations of stable isotopes in differentiating organic and conventional foodstuffs$b2. Animal products.$h[electronic resource]
260 $c2017
520 $aIn this review, we examine the variation in stable isotope signatures of the lighter elements (2H, 13C, d15N, d18O, 34S) of tissues and excreta of domesticated animals, the factors affecting the isotopic composition of animal tissues and whether stable isotopes may be used to differentiate organic and conventional modes of animal husbandry. The main factors affecting the d13C signatures of livestock are the C3 / C4 composition of the diet, the relative digestibility of the diet components, metabolic turnover, tissue and compound specificity, growth rate and animal age. 15N signatures of sheep and cattle products have been related mainly to diet signatures, which are quite variable among farms and between years. Although few data exist, a minor influence in 15N signatures of animal products was attributed to N losses at the farm level, whereas stocking rate showed divergent findings. Correlations between mode of production and 2H and d18O have not been established, and only in one case of an animal product was d34S a satisfactory marker for mode of production. While many data exist on diet-tissue isotopic discrimination values among domesticated animals, there is a paucity of data which allow a direct and statistically-verifiable comparison of the differences in the isotopic signatures of organically- and conventionally-grown animal products. The few comparisons are confined to beef, milk and egg yolk, with no data for swine or lamb products. 13C appears to be the most promising isotopic marker to differentiate organic and conventional production systems when maize (C4) is present in the conventional animal diet. However, 13C may be unsuitable under tropical conditions where C4 grasses are abundant, and where grass-based husbandry is predominant in both conventional and organic systems. At the present time there is no universal analytical method that can be applied to differentiate organic and conventional animal products.
653 $aCriação animal
653 $aDieta animal
653 $aIsótopos estáveis
700 1 $aCHALK, P. M.
773 $tCritical Reviews in Food Science and Nutrition$gv. 57, n. 1, p. 181-196, 2017.
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Embrapa Solos (CNPS) |
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| Registros recuperados : 31 | |
| 1. |  | CHALK, P. M. From production to consumption: tracing C, N, and S dynamics in brazilian agroecosystems using stable isotopes. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 9, p. 1039-1050, set. 2016. Título em português: Da produção ao consumo: traçando a dinâmica de C, N e S nos agroecossistemas brasileiros com uso de isótopos estáveis.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 14. | | INACIO, C. de T.; MAGALHÃES, A. M. T.; SOUZA, P. O.; CHALK, P. M.; URQUIAGA, S. The relative isotopic abundance (delta13C, delta15N) during composting of agricultural wastes in relation to compost quality and feedstock. Isotopes in Environmental and Health Studies, v. 54, n. 2, p. 185-195, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Solos. |
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| 17. | | UNKOVICH, M.; HERRIDGE, D.; PEOPLES, M. CADISCH, G.; BODDEY, R.; GILLER, K.; ALVES, B.; CHALK, P. Measuring plant-associate nitrogen fixation in agricultural systems. Canberra: ACIAR, 2008 240p. (ACIAR Monograph, 136) PARCERIA: ACIAR| Tipo: Autoria/Organização/Edição de Livros |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 18. | | INACIO, C. de T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. Nitrogen isotopic composition of n-sources, vegetables and soil from two organic farming systems. In: NITROGEN WORKSHOP: THE NITROGEN CHALLENGE: BUILDING A BLUEPRINT FOR NITROGEN USE EFFICIENCY AND FOOD SECURITY, 18., 2014, Lisboa. Resumo... Lisboa: Instituto Superior de Agronomia, CEER: Biosystens Engineering; Évora: Nacional de Ivestigação Agrícola e Veterinária; Viena: International Nitrogen Initiative, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| 19. | | INACIO, C. T.; URQUIAGA, S.; CHALK, P. M.; ALVES, B. J. R. Nitrogen loss (NH3, N2O) patterns in bench-scale composting. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 4., 2015, Rio de Janeiro. Anais... Brasília, DF: Embrapa, 2015.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 31 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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