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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
23/05/1997 |
Data da última atualização: |
23/05/1997 |
Autoria: |
VALLE, E. R. do; CRUZ, L. C.; KESLER, D. J. |
Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS). |
Título: |
Gonadotropin-releasing hormone enchances the calving rate of beef females administered Norgestomet and alfaprostol for estrus syncronization. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Journal of Animal Science, Champaign, v.75, n.4, p.897-903, Apr. 1997. |
Idioma: |
Inglês |
Notas: |
CNPGC. |
Conteúdo: |
One hundred fify beef heifers and 403 beef cows suckling calves were adminstered norgestomet implants (8 d) and alfaprostol, a PGF analogue, approximately 28 h before implant removal. Thirty hours after implant removal, females were administered either GnRH via injection, GnRH via implantation, or no GnRH, The dosage of GnRH was 250 ug. and implants prolong the induced LH surge. Ovulation response, incidence of short cycles, and calving rate were analyzed as 2 x 2 x3 completely randomized factorial design with female (heifers and cows), estrous cycles (with or without), and GnRH as the main effects. There were no interactions (P>.10), and becouse heifers and cows had responses that did not differ (P>.25), the were summarized togesther. Females with estrous cycles had a higher (P <.05) ovulation response, fewer (P <.01) calving rate than females without estrous cycles. Gonadotropin-releasing hormone treatment increasede the ovulation response (P v.01) and the calving rate (P <.05), and these responses were not affected (P >.10) by the method of GnRH administration. Based on these data, the increased ovolation response to GnRH may account for 29% of the increase in calving rate observed in the GnRH-treated females. In summary, in norgestomet and alfaprostol-synchronized females, GnRH enhanced calving rate regardless of how it was administered. This increase was due to more than an increased ovulation rate. |
Palavras-Chave: |
Beef cow; Bovino de corte; GnRH; Novilha; Oestrus syncronization; Partuition rate; Synthetic homones. |
Thesagro: |
Hormônio; Progesterona; Prostaglandina; Reprodução; Sincronização do Cio; Taxa de Natalidade; Vaca. |
Thesaurus Nal: |
beef cattle; calving rate; norgestomet; progesterone; prostaglandins; reproduction; steers. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02573naa a2200409 a 4500 001 1321584 005 1997-05-23 008 1997 bl uuuu u00u1 u #d 100 1 $aVALLE, E. R. do 245 $aGonadotropin-releasing hormone enchances the calving rate of beef females administered Norgestomet and alfaprostol for estrus syncronization. 260 $c1997 500 $aCNPGC. 520 $aOne hundred fify beef heifers and 403 beef cows suckling calves were adminstered norgestomet implants (8 d) and alfaprostol, a PGF analogue, approximately 28 h before implant removal. Thirty hours after implant removal, females were administered either GnRH via injection, GnRH via implantation, or no GnRH, The dosage of GnRH was 250 ug. and implants prolong the induced LH surge. Ovulation response, incidence of short cycles, and calving rate were analyzed as 2 x 2 x3 completely randomized factorial design with female (heifers and cows), estrous cycles (with or without), and GnRH as the main effects. There were no interactions (P>.10), and becouse heifers and cows had responses that did not differ (P>.25), the were summarized togesther. Females with estrous cycles had a higher (P <.05) ovulation response, fewer (P <.01) calving rate than females without estrous cycles. Gonadotropin-releasing hormone treatment increasede the ovulation response (P v.01) and the calving rate (P <.05), and these responses were not affected (P >.10) by the method of GnRH administration. Based on these data, the increased ovolation response to GnRH may account for 29% of the increase in calving rate observed in the GnRH-treated females. In summary, in norgestomet and alfaprostol-synchronized females, GnRH enhanced calving rate regardless of how it was administered. This increase was due to more than an increased ovulation rate. 650 $abeef cattle 650 $acalving rate 650 $anorgestomet 650 $aprogesterone 650 $aprostaglandins 650 $areproduction 650 $asteers 650 $aHormônio 650 $aProgesterona 650 $aProstaglandina 650 $aReprodução 650 $aSincronização do Cio 650 $aTaxa de Natalidade 650 $aVaca 653 $aBeef cow 653 $aBovino de corte 653 $aGnRH 653 $aNovilha 653 $aOestrus syncronization 653 $aPartuition rate 653 $aSynthetic homones 700 1 $aCRUZ, L. C. 700 1 $aKESLER, D. J. 773 $tJournal of Animal Science, Champaign$gv.75, n.4, p.897-903, Apr. 1997.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registros recuperados : 34 | |
10. | | VALLE, E. R. do; CRUZ, L. C.; KESLER, D. J. inducao e sincronizacao de cio em vacas de corte utilizando-se da desmama temporaria, "norgestomet", pgf2a e gnrh. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 23., 1986, Campo Grande, Anais... Campo Grande : SBZ, 1986. p.373. CNPGC.Biblioteca(s): Embrapa Gado de Corte. |
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15. | | CRUZ, L. C. J. da; BODDEY, R. M.; ALVES, B. J. R.; JANTALIA, C. P.; URQUIAGA, S. Balanço carbono-nitrogênio no sistema solo-planta de genótipos de capim-elefante de alta produção de biomassa para fins energéticos. In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 13., 2013, Seropédica Ciência, saúde e esporte: caderno de resumos... Seropédica: Embrapa Agrobiologia, 2013.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agrobiologia. |
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16. | | MELO, R. F. de; ANJOS, J. B. dos; PEREIRA, L. A.; BRITO, L. T. de L.; CRUZ, L. C. Barragem subterrânea: tecnologia alternativa de adaptação às mudanças climáticas para agricultura familiar. In: SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 3., 2011, Juazeiro. Experiências para mitigação e adaptação. Petrolina: Embrapa Semiárido, 2011. 1 CD-ROM. (Embrapa Semiárido. Documentos, 239).Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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17. | | CRUZ, L. C. J. da; ZATORRE, N. P.; FRANCHINI, J. C.; BERBARA, R. L. L.; BODDEY, R. M. Efeito do manejo do solo e das sequências de cultivo na concentração de carbono nos macroagregados do solo. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa: SBCS, 2010. 4 p. Trab. 847. 1 CD-ROM. FERTBIO 2010.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Agrobiologia. |
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18. | | CRUZ, L. C. J. da; ZATORRE, N. P.; FRANCHINI, J. C.; BERBARA, R. L. L.; BODDEY, R. M. Efeito do manejo do solo e das sequências de cultivo na concentração de carbono nos macroagregados do solo. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa: SBCS, 2010. 4 p. Trab. 847. 1 CD-ROM. FERTBIO 2010.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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19. | | VALLE, E. R. do; CRUZ, L. C.; CMARIK, G. F.; OTT, R. S.; PETERSON, L. A.; KESLER, D. J. The effect of gnrh and its method of administration on ovulation response, corpus luteum function and fertility of beef heifers synchronized with norgestomet and pgf2a. Journal of Animal Science, Champaign, v.63, suppl 1, p.132-133, 1986. CNPGC.Biblioteca(s): Embrapa Gado de Corte. |
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Registros recuperados : 34 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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