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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
22/07/2025 |
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Autoria: |
REID, R. L. |
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Título: |
Studies on th carbohydrate metabolism of sheep. XI. The role adrenals in ovine pregnancy toxaemia. |
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Ano de publicação: |
1960 |
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Fonte/Imprenta: |
Australian Journal of Agricultural Research, v. 11, n. 3, p. 364-382, 1960. |
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DOI: |
10.1071/AR9600364 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Plasma cortisol levels in fed and fasted non-pregnant and in undernourished pregnant ewes were consistently less than 1.5 µg per 100 ml. Most values were considerably above this level in 20 field cases of pregnancy toxaemia, 31 of 52 values being greater than 3 µg per 100 ml. These levels must be regarded as abnormally high in sheep. Pregnancy toxaemia was induced in two experiments by fasting after a period of severe under nutrition and in two by fasting previously well-nourished ewes in the presence of severe psychological stresses. The onset of clinical signs was associated with marked increases above normal in plasma cortisol. In three experiments involving a total of 23 previously well-nourished ewes, 11 of which carried twins or triplets, only one mild case of pregnancy toxaemia was induced by complete fasting in late pregnancy for up to 6 days, in the absence of any additional environmental stress. Pregnancy toxaemia was readily induced in 24 of 38 ewes in three experiments when severe psychological stresses accompanied fasting in late pregnancy. Adrenal hypertrophy, indicating sustained adrenal hyperactivity, was most pronounced in field cases of pregnancy toxaemia induced primarily by sustained under nutrition. Fresh adrenal weights (total of two adrenals) averaged 6.7 g compared to 3.8 g in normal non-pregnant ewes. Mean plasma cortisol levels in ewes with pregnancy toxaemia were significantly correlated with fresh adrenal weight. The suggestions that abnormalities of carbohydrate and fat metabolism in ewes with pregnancy toxaemia are those of adrenal steroid diabetes, and that cerebral depression may be largely a consequence of a cortisol-induced inhibition of glucose utilization, are discussed in the light of the probable metabolic effects of cortisol in the undernourished pregnant ewe. MenosAbstract: Plasma cortisol levels in fed and fasted non-pregnant and in undernourished pregnant ewes were consistently less than 1.5 µg per 100 ml. Most values were considerably above this level in 20 field cases of pregnancy toxaemia, 31 of 52 values being greater than 3 µg per 100 ml. These levels must be regarded as abnormally high in sheep. Pregnancy toxaemia was induced in two experiments by fasting after a period of severe under nutrition and in two by fasting previously well-nourished ewes in the presence of severe psychological stresses. The onset of clinical signs was associated with marked increases above normal in plasma cortisol. In three experiments involving a total of 23 previously well-nourished ewes, 11 of which carried twins or triplets, only one mild case of pregnancy toxaemia was induced by complete fasting in late pregnancy for up to 6 days, in the absence of any additional environmental stress. Pregnancy toxaemia was readily induced in 24 of 38 ewes in three experiments when severe psychological stresses accompanied fasting in late pregnancy. Adrenal hypertrophy, indicating sustained adrenal hyperactivity, was most pronounced in field cases of pregnancy toxaemia induced primarily by sustained under nutrition. Fresh adrenal weights (total of two adrenals) averaged 6.7 g compared to 3.8 g in normal non-pregnant ewes. Mean plasma cortisol levels in ewes with pregnancy toxaemia were significantly correlated with fresh adrenal weight. The suggestions that abn... Mostrar Tudo |
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Thesagro: |
Metabolismo; Nutrição; Ovino. |
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Thesaurus Nal: |
Carbohydrate metabolism; Dietary carbohydrate; Poisoning; Ruminant nutrition; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02535naa a2200229 a 4500
001 1523223
005 2025-07-22
008 1960 bl uuuu u00u1 u #d
024 7 $a10.1071/AR9600364$2DOI
100 1 $aREID, R. L.
245 $aStudies on th carbohydrate metabolism of sheep. XI. The role adrenals in ovine pregnancy toxaemia.$h[electronic resource]
260 $c1960
520 $aAbstract: Plasma cortisol levels in fed and fasted non-pregnant and in undernourished pregnant ewes were consistently less than 1.5 µg per 100 ml. Most values were considerably above this level in 20 field cases of pregnancy toxaemia, 31 of 52 values being greater than 3 µg per 100 ml. These levels must be regarded as abnormally high in sheep. Pregnancy toxaemia was induced in two experiments by fasting after a period of severe under nutrition and in two by fasting previously well-nourished ewes in the presence of severe psychological stresses. The onset of clinical signs was associated with marked increases above normal in plasma cortisol. In three experiments involving a total of 23 previously well-nourished ewes, 11 of which carried twins or triplets, only one mild case of pregnancy toxaemia was induced by complete fasting in late pregnancy for up to 6 days, in the absence of any additional environmental stress. Pregnancy toxaemia was readily induced in 24 of 38 ewes in three experiments when severe psychological stresses accompanied fasting in late pregnancy. Adrenal hypertrophy, indicating sustained adrenal hyperactivity, was most pronounced in field cases of pregnancy toxaemia induced primarily by sustained under nutrition. Fresh adrenal weights (total of two adrenals) averaged 6.7 g compared to 3.8 g in normal non-pregnant ewes. Mean plasma cortisol levels in ewes with pregnancy toxaemia were significantly correlated with fresh adrenal weight. The suggestions that abnormalities of carbohydrate and fat metabolism in ewes with pregnancy toxaemia are those of adrenal steroid diabetes, and that cerebral depression may be largely a consequence of a cortisol-induced inhibition of glucose utilization, are discussed in the light of the probable metabolic effects of cortisol in the undernourished pregnant ewe.
650 $aCarbohydrate metabolism
650 $aDietary carbohydrate
650 $aPoisoning
650 $aRuminant nutrition
650 $aSheep
650 $aMetabolismo
650 $aNutrição
650 $aOvino
773 $tAustralian Journal of Agricultural Research$gv. 11, n. 3, p. 364-382, 1960.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 80 | |
| 8. |  | COELHO, E. F.; SANTOS, D. L.; SIMOES, W. L. Irrigação de fruteiras tropicais (abacaxizeiro, bananeira, mamoeiro e mangueira). In: PAOLINELLI, A.; DOURADO NETO, D.; MANTOVANI, E. C. (Ed.). Diferentes abordagens sobre agricultura irrigada no Brasil: técnica e cultura. Piracicaba: ESALQ-USP, 2021. cap. 21, p. 429-460.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
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| 9. | | ALBUQUERQUE, S. G. de; SANTOS, D. C. dos. Palma-forrageira. In: KIILL, L. H. P.; MENEZES, E. A. (Ed.). Espécies vegetais exóticas com potencialidades para o semi-árido brasileiro. Petrolina: Embrapa Semi-Árido: Brasília, DF: Embrapa Informação Tecnológica, 2005. cap. 3, p. 91-127.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
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| 10. | | SANTOS, D. C. C. dos; VIRGÍNIO, J.; DAMASCENO, I. C.; GARZIERA, L.; SILVA, G. B. da; SANTOS, D.; PARANHOS, B. A. J. Armazenamento de ovos de Ceratitis capitata (Diptera: Tephritidae) à baixa temperatura. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 11. | | SILVA NETO, A. M. da; BRAVO, I. S. J.; SANTOS, D.; DAMASCENO, I.; SANTOS, D.; VIRGÍNIO, J.; PARANHOS, B. A. J.; NASCIMENTO, A. S. do. Efeito da exposição permanente a luminosidade versus foto período sobre a produção e qualidade dos ovos em criação massal de Ceratitis capitata. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 17. | | DAMASCENO, I. C.; SANTOS, D.; BARBOSA, G.; GARZIERA, L.; PARANHOS, B. A. J. Controle de qualidade de machos estéreis de Ceratitis capitata, linhagem Vienna 8-TSL, liberados no Vale do São Francisco. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 18. | | SANTOS, D. M. dos; PEREIRA FILHO, I. A.; LEMOS, J. W. V.; ALBUQUERQUE, M. M. de. Comparacao de sistemas de controle de ervas daninhas nas culturas de milho e feijao, isoladas e consorciadas. In: REUNIÃO SOBRE CULTURAS CONSORCIADAS NO NORDESTE, 1., 1983, Teresina. Anais... Teresina: EMBRAPA-UEPAE de Teresina, 1983. v. 1, p. 22.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 19. | | SILVA, A. de S.; SANTOS, D. N. dos; BRITO, L. T. de L. O Nordeste e a convivência com o semi-árido. In: SILVA, A. de S.; SILVA, C. M. M. de S.; FAY, E. F.; BRITO, L. T. de L. Construção de cisternas domiliciares no Haiti: a experiência do semi-árido brasileiro ao povo haitiano - relatório técnico final. Petrolina: Embrapa Semi-Árido: Agência Brasileira de Cooperação, 2008. p. 7-20. 1 CD-ROM.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
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| 20. | | CASTRO, R.; NASCIMENTO, A.; DAMASCENO, I.; ANDRADE, K.; SANTOS, D.; LOPES, F.; PARANHOS, B. A. J.; MORELLI, R. Ataque e desenvolvimento de Ceratitis capitata (Diptera: Tephritidae) em diferentes estágios de maturação de manga "Tommy". In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação : anais. Viçosa, MG: UFV, 2008. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 80 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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