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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: |
09/06/2025 |
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Autoria: |
THORBURN, G. D.; SCNEIDER, W. |
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Título: |
The progesterone concentration in the plasma of the goat during the oestrus cycle and pregnancy. |
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Ano de publicação: |
1972 |
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Fonte/Imprenta: |
Journal Endocrinology, v. 52, n. 1, p. 23-36, Jan. 1972. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Progesterone concentrations in the peripheral plasma of goats were measured by a protein-binding assay. The mean concentration was extremely low on the day of oestrus (0·2 ng/ml) and was not significantly different from that found in anoestrous or ovariectomized animals. The concentration increased to a maximum of 4 ng/ml on about day 10 of the 21-day cycle, and decreased rapidly during the last 3 days of the cycle. Plasma progesterone concentration during early pregnancy (2·5?3·5 ng/ml) was similar to the luteal phase value and remained steady from day 8 to day 60. Between days 60 and 70 there was a secondary increase in progesterone concentration which was maintained at this increased level (4·5?5·5 ng/ml) until just before parturition. In twin-bearing animals, the secondary increase was greater. Progesterone concentration decreased rapidly during the 1?2 days preceding parturition, but the concentration was still quite high on the day of parturition (1·25 ng/ml). The progesterone concentration in peripheral plasma was markedly increased during anaesthesia and the operation. After bilateral ovariectomy of the pregnant goat, peripheral progesterone concentration fell rapidly from 9 to 2·5 ng/ml during the first ½ h and then more slowly during the next 5?6 h. The animals aborted 36?48 h later. A consistent positive arterio?venous difference for progesterone was observed across the pregnant uterus in two unanaesthetized goats. These results indicate that the ovary is the main site of progesterone production in the pregnant goat and that production by the placenta is small and unlikely to influence the level of this hormone in the maternal circulation. MenosAbstract: Progesterone concentrations in the peripheral plasma of goats were measured by a protein-binding assay. The mean concentration was extremely low on the day of oestrus (0·2 ng/ml) and was not significantly different from that found in anoestrous or ovariectomized animals. The concentration increased to a maximum of 4 ng/ml on about day 10 of the 21-day cycle, and decreased rapidly during the last 3 days of the cycle. Plasma progesterone concentration during early pregnancy (2·5?3·5 ng/ml) was similar to the luteal phase value and remained steady from day 8 to day 60. Between days 60 and 70 there was a secondary increase in progesterone concentration which was maintained at this increased level (4·5?5·5 ng/ml) until just before parturition. In twin-bearing animals, the secondary increase was greater. Progesterone concentration decreased rapidly during the 1?2 days preceding parturition, but the concentration was still quite high on the day of parturition (1·25 ng/ml). The progesterone concentration in peripheral plasma was markedly increased during anaesthesia and the operation. After bilateral ovariectomy of the pregnant goat, peripheral progesterone concentration fell rapidly from 9 to 2·5 ng/ml during the first ½ h and then more slowly during the next 5?6 h. The animals aborted 36?48 h later. A consistent positive arterio?venous difference for progesterone was observed across the pregnant uterus in two unanaesthetized goats. These results indicate that the ovary i... Mostrar Tudo |
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Thesagro: |
Cabra; Caprino; Ciclo Estral; Endocrinologia; Hormônio Animal; Prenhez; Progesterona; Reprodução. |
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Thesaurus Nal: |
Abortion (animals); Goats; Pregnancy; Progesterone; Protein binding; Thin layer chromatography. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02533naa a2200301 a 4500
001 1522178
005 2025-06-09
008 1972 bl uuuu u00u1 u #d
100 1 $aTHORBURN, G. D.
245 $aThe progesterone concentration in the plasma of the goat during the oestrus cycle and pregnancy.$h[electronic resource]
260 $c1972
520 $aAbstract: Progesterone concentrations in the peripheral plasma of goats were measured by a protein-binding assay. The mean concentration was extremely low on the day of oestrus (0·2 ng/ml) and was not significantly different from that found in anoestrous or ovariectomized animals. The concentration increased to a maximum of 4 ng/ml on about day 10 of the 21-day cycle, and decreased rapidly during the last 3 days of the cycle. Plasma progesterone concentration during early pregnancy (2·5?3·5 ng/ml) was similar to the luteal phase value and remained steady from day 8 to day 60. Between days 60 and 70 there was a secondary increase in progesterone concentration which was maintained at this increased level (4·5?5·5 ng/ml) until just before parturition. In twin-bearing animals, the secondary increase was greater. Progesterone concentration decreased rapidly during the 1?2 days preceding parturition, but the concentration was still quite high on the day of parturition (1·25 ng/ml). The progesterone concentration in peripheral plasma was markedly increased during anaesthesia and the operation. After bilateral ovariectomy of the pregnant goat, peripheral progesterone concentration fell rapidly from 9 to 2·5 ng/ml during the first ½ h and then more slowly during the next 5?6 h. The animals aborted 36?48 h later. A consistent positive arterio?venous difference for progesterone was observed across the pregnant uterus in two unanaesthetized goats. These results indicate that the ovary is the main site of progesterone production in the pregnant goat and that production by the placenta is small and unlikely to influence the level of this hormone in the maternal circulation.
650 $aAbortion (animals)
650 $aGoats
650 $aPregnancy
650 $aProgesterone
650 $aProtein binding
650 $aThin layer chromatography
650 $aCabra
650 $aCaprino
650 $aCiclo Estral
650 $aEndocrinologia
650 $aHormônio Animal
650 $aPrenhez
650 $aProgesterona
650 $aReprodução
700 1 $aSCNEIDER, W.
773 $tJournal Endocrinology$gv. 52, n. 1, p. 23-36, Jan. 1972.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 10 | |
| 2. |  | MENTGES, M. I.; REICHERT, J. M.; ROSA, D. P. da; VIEIRA, D. A.; ROSA, V. T. da; REINERT, D. J. Propriedades físico-hídricas do solo e demanda energética de haste escarificadora em Argissolo compactado. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 3, p. 315-321, mar. 2010 Título em inglês: Soil physicohydric properties and chisel energy demand in a compacted Alfisol.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | ZENI, R.; ROSA. D. P. da; PESINI, F.; FINCATTO, D.; BAMBERG, A. L.; MARTINAZZO, R.; SILVEIRA, C. A. P. Desenvolvimento de aveia branca em diferentes manejos fisicos e quimicos em nitossolo. In: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: [anales]. Cusco: Sociedade Latinoamericana de la Sciencia del Suelo: Sociedade Peruana de la Sciencia del Suelo, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 4. | | ROSA, D. P. da; REICHERT, J. M.; MENTGES, M. I.; ROSA, V. T. da; VIEIRA, D. A.; REINERT, D. J. Demanda de tração e propriedades físicas de um Argissolo em diferentes manejos e intensidades de tráfego. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 1, p. 118-126, jan. 2012. Título em inglês: Draught requirement and physical properties in a Hapludalf at different management and traffic intensity levels.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | ROSA, D. P. da; REICHERT, J. M.; SATTLER, A.; REINERT, D. J.; MENTGES, M. I.; VIEIRA, D. A. Relação entre solo e haste sulcadora de semeadora em Latossolo escarificado em diferentes épocas. Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 43, n. 3, p. 395-400, mar. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Trigo; Embrapa Unidades Centrais. |
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| 6. | | NAVROSKI, M. C.; PEREIRA, M. de O.; BORSOI, G. A.; KALIL FILHO, A. N.; NASCIMENTO, B.; ROSA, D. P. da. Tolerância ao frio e características silviculturais do cedro-australiano no sul do Brasil. Pesquisa Florestal Brasileira, Colombo, v. 37, n. 89, p. 47-54, jan./mar. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Florestas. |
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| 7. | | ROSA, V. T. da; ROSA, D. P. da; SATTLER, A.; MENTGES, M. I.; VIEIRA, D. A.; REICHERT, J. M.; REINERT, D. J. Alteração da condutividade hidráulica saturada do solo em áreas com diferentes níveis de tráfego de máquinas e prazos de adoção do sistema plantio direto. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais: anais. Rio de Janeiro: UFRRJ: Embrapa Solos; Seropédica: Embrapa Agrobiologia, 2008. 4 p.| Biblioteca(s): Embrapa Trigo. |
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| 8. | | REICHERT, J. M.; ROSA, V. T. da; VOGELMANN, E. S.; ROSA, D. P. da; HORN, R.; REINERT, D. J.; SATTLER, A.; DENARDIN, J. E. Conceptual framework for capacity and intensity physical soil properties affected by short and long-term (14 years) continuous no-tillage and controlled traffic. Soil & Tillage Research, Amsterdam, v. 158, p. 123-136, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Trigo. |
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| 9. | | ROSA, D. P. da; ROSA, V. T. da; REICHERT, J. M.; REINERT, D. J.; SATTLER, A.; MENTGES, M. I.; VIEIRA, D. A. Evolução da compressibilidade de um latossolo argiloso sob semeadura direta. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileiro. Porto Alegre: SBCS, Núcleo Regional Sul: UFRGS, 2007. 1 CD-ROM. 5 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Trigo. |
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| 10. | | TERRA, L. A.; SCHWAB, S.; TEIXEIRA, K. R. dos S.; ARAUJO, J. L. S. de; CHAVES, M. S.; FREITAS, H. R. B. de; CRIVELARO, A. L. R.; NUNES, A. B. de C.; SANTOS, C. M. dos; ROSA, D. P. da S.; PADILHA, D. da S.; SILVA, E. da; MENDES, V. S.; FARINELLI, L.; CRUZ, L. M.; BALDANI, J. I. Draft genome sequence of Nitrospirillum amazonense strain CBAmC, a nitrogen fixer and plant growth promoter isolated from sugarcane, reveal bacterial potential benefits to cane culture In: INTERNATIONAL PGPR WORKSHOP, 10., Liége, 2015. Program and abstract book. Liége: Université de Liége, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 10 | |
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