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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
09/11/2006 |
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Data da última atualização: |
13/06/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VICENTE, W.; BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MACHADO, R.; BARUSELLI, P. S.; ALENCAR, M. M. de; BINELLI, M. |
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Afiliação: |
MARCO AURELIO C MEIRA BERGAMASCHI, CPPSE; ROGERIO TAVEIRA BARBOSA, CPPSE/SÃO CARLOS, SP.; RUI MACHADO, CPPSE; MAURICIO MELLO DE ALENCAR, CPPSE. |
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Título: |
Effects of equine chrionic gonadotrophin (eCG) on corpus luteum development and progesterone concentrations in Nelore cows. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: WORLD BUIATRICS CONGRESS, 24., 2006, Nice, France. Proceedings... Nice: Société Française de Buiatrie French Buiatrics Association, 2006. |
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Idioma: |
Português |
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Conteúdo: |
This trial aimed to test eCG as an enhancer of the luteal function, as well as to evaluate the ability of eCG to delay or prevent luteolysis mechanism. A group of 32 mature, synchronized (CRESTAR@), lactating Nelore (Bos taurus indicus) cows were randomly allotted to receive either 400 lU of eCG at implant withdrawal (GeCG; n=16) or remain as contrais (GC; n=16). Ultrasound per rectum evaluation of avaries was conducted daily, from implant rem oval up to the following ovulation (a complete estrous cycle). Simultaneously, blood samples were taken to determine plasmatic concentration of progesterone ([P4]). Data were analyzed by GLM of the SAS program. GeCG showed non-significant (P>.05) higher volume of corpus luteum (CL) from day 3 after synchronized ovulation up to lhe rest of lhe luteal phase. In addition, eCG promoted a longer lasting growing period of lhe CL without changing its growing rale (P>.05) as compared to GC. As a result, CI maximum volume was reached later (9.2:t .47 days) and achieved a larger dimension (6927.5:t 405.86 mm3) for GeCG than occurred for GC (respectively, 7.7:t .47 days and 5437.8:t 405.86 mm3). The peak of [P4] was observed at lhe same time for both groups (11.3 t .59 and 11.4 t .59 days for GeCG and GC, respectively). However, maximum [P4] was higher (P<.O5) for GeCG (8.2 t .64 ng/mL) than Gc (6.4 t .64 ng/mL). Luteolysis also took place at lhe same time (P>.O5) for both groups (17.3 t .45 to GeCG and 17.1 t .45 days of lhe estrous cycle to GC). As a consequence, estrous cycle length did not differ (P>.O5) between treated (21.8 t .57 days) and non-treated cows (21.4 t .57 days). In summary, eCG not only increased CL dimension but also optimized [P4] over the luteal phase ofthe estrous cycle. Therefore, eCG given at implant removal provided a luteotrophic effect, but it was not capable to delay luteolysis. MenosThis trial aimed to test eCG as an enhancer of the luteal function, as well as to evaluate the ability of eCG to delay or prevent luteolysis mechanism. A group of 32 mature, synchronized (CRESTAR@), lactating Nelore (Bos taurus indicus) cows were randomly allotted to receive either 400 lU of eCG at implant withdrawal (GeCG; n=16) or remain as contrais (GC; n=16). Ultrasound per rectum evaluation of avaries was conducted daily, from implant rem oval up to the following ovulation (a complete estrous cycle). Simultaneously, blood samples were taken to determine plasmatic concentration of progesterone ([P4]). Data were analyzed by GLM of the SAS program. GeCG showed non-significant (P>.05) higher volume of corpus luteum (CL) from day 3 after synchronized ovulation up to lhe rest of lhe luteal phase. In addition, eCG promoted a longer lasting growing period of lhe CL without changing its growing rale (P>.05) as compared to GC. As a result, CI maximum volume was reached later (9.2:t .47 days) and achieved a larger dimension (6927.5:t 405.86 mm3) for GeCG than occurred for GC (respectively, 7.7:t .47 days and 5437.8:t 405.86 mm3). The peak of [P4] was observed at lhe same time for both groups (11.3 t .59 and 11.4 t .59 days for GeCG and GC, respectively). However, maximum [P4] was higher (P<.O5) for GeCG (8.2 t .64 ng/mL) than Gc (6.4 t .64 ng/mL). Luteolysis also took place at lhe same time (P>.O5) for both groups (17.3 t .45 to GeCG and 17.1 t .45 days of lhe estrous cycle to GC)... Mostrar Tudo |
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Palavras-Chave: |
Chrionic gonadotrophin; Nelore cows; progesterone concentrations. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39032/1/PROCIMACMB2006.00097.pdf
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Marc: |
LEADER 02707nam a2200229 a 4500
001 1047600
005 2023-06-13
008 2006 bl uuuu u00u1 u #d
100 1 $aVICENTE, W.
245 $aEffects of equine chrionic gonadotrophin (eCG) on corpus luteum development and progesterone concentrations in Nelore cows.$h[electronic resource]
260 $aIn: WORLD BUIATRICS CONGRESS, 24., 2006, Nice, France. Proceedings... Nice: Société Française de Buiatrie French Buiatrics Association$c2006
520 $aThis trial aimed to test eCG as an enhancer of the luteal function, as well as to evaluate the ability of eCG to delay or prevent luteolysis mechanism. A group of 32 mature, synchronized (CRESTAR@), lactating Nelore (Bos taurus indicus) cows were randomly allotted to receive either 400 lU of eCG at implant withdrawal (GeCG; n=16) or remain as contrais (GC; n=16). Ultrasound per rectum evaluation of avaries was conducted daily, from implant rem oval up to the following ovulation (a complete estrous cycle). Simultaneously, blood samples were taken to determine plasmatic concentration of progesterone ([P4]). Data were analyzed by GLM of the SAS program. GeCG showed non-significant (P>.05) higher volume of corpus luteum (CL) from day 3 after synchronized ovulation up to lhe rest of lhe luteal phase. In addition, eCG promoted a longer lasting growing period of lhe CL without changing its growing rale (P>.05) as compared to GC. As a result, CI maximum volume was reached later (9.2:t .47 days) and achieved a larger dimension (6927.5:t 405.86 mm3) for GeCG than occurred for GC (respectively, 7.7:t .47 days and 5437.8:t 405.86 mm3). The peak of [P4] was observed at lhe same time for both groups (11.3 t .59 and 11.4 t .59 days for GeCG and GC, respectively). However, maximum [P4] was higher (P<.O5) for GeCG (8.2 t .64 ng/mL) than Gc (6.4 t .64 ng/mL). Luteolysis also took place at lhe same time (P>.O5) for both groups (17.3 t .45 to GeCG and 17.1 t .45 days of lhe estrous cycle to GC). As a consequence, estrous cycle length did not differ (P>.O5) between treated (21.8 t .57 days) and non-treated cows (21.4 t .57 days). In summary, eCG not only increased CL dimension but also optimized [P4] over the luteal phase ofthe estrous cycle. Therefore, eCG given at implant removal provided a luteotrophic effect, but it was not capable to delay luteolysis.
653 $aChrionic gonadotrophin
653 $aNelore cows
653 $aprogesterone concentrations
700 1 $aBERGAMASCHI, M. A. C. M.
700 1 $aVICENTE, W. R. R.
700 1 $aBARBOSA, R. T.
700 1 $aMACHADO, R.
700 1 $aBARUSELLI, P. S.
700 1 $aALENCAR, M. M. de
700 1 $aBINELLI, M.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
24/10/2012 |
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Data da última atualização: |
24/10/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SANTOS, C. M. dos; ROUWS, L. F. M.; BALDANI, J. I.; SCHWAB, S. |
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Afiliação: |
UEZO; LUC FELICIANUS MARIE ROUWS, CNPAB; JOSE IVO BALDANI, CNPAB; STEFAN SCHWAB, CNPAB. |
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Título: |
Desenvolvimento de estratégias independentes de cultivo para a análise da microbiota endofítica de cana-de-açúcar visando exploração agrobiotecnológica |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 12., 2012. Economia verde, sustentabilidade e erradicação da pobreza: caderno de resumos. Seropédica: Embrapa Agrobiologia, 2012. |
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Idioma: |
Português |
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Palavras-Chave: |
Endófitos; Enriqueciemnto celular; Microbiota. |
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Categoria do assunto: |
-- |
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URL: |
https://www.ojs.cnpab.embrapa.br/index.php/scjd/article/view/1386/314
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Marc: |
LEADER 00730nam a2200169 a 4500
001 1937843
005 2012-10-24
008 2012 bl uuuu u01u1 u #d
100 1 $aSANTOS, C. M. dos
245 $aDesenvolvimento de estratégias independentes de cultivo para a análise da microbiota endofítica de cana-de-açúcar visando exploração agrobiotecnológica$h[electronic resource]
260 $aIn: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 12., 2012. Economia verde, sustentabilidade e erradicação da pobreza: caderno de resumos. Seropédica: Embrapa Agrobiologia$c2012
653 $aEndófitos
653 $aEnriqueciemnto celular
653 $aMicrobiota
700 1 $aROUWS, L. F. M.
700 1 $aBALDANI, J. I.
700 1 $aSCHWAB, S.
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Embrapa Agrobiologia (CNPAB) |
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