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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
10/03/2010 |
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Data da última atualização: |
11/03/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SIQUEIRA, L. G. B.; TORRES, C. A. A.; SOUZA, E. D.; MONTEIRO JUNIOR, P. L. J.; ARASHIRO, E. K. N.; CAMARGO, L. S. A.; FERNANDES, C. A. C.; VIANA, J. H. M. |
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Afiliação: |
LUIZ GUSTAVO BRUNO SIQUEIRA, CPAC; C. A. A. TORRES, UNIVERSIDADE FEDERAL DE VIÇOSA; E. D. SOUZA, CNPGL; P. L. J. MONTEIRO JUNIOR, CNPGL; E. K. N. ARASHIRO, CNPGL; L. S. A. CAMARGO, CNPGL; C. A. C. FERNANDES, UNIVERSIDADE DE ALFENAS; J. H. M. VIANA, CNPGL. |
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Título: |
Pregnancy rates and corpus luteum-related factors affecting pregnancy establishment in bovine recipients synchronized for fixed-time embryo transfer. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Theriogenology, v. 72, p. 949-958, 2009. |
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Idioma: |
Português |
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Conteúdo: |
The objective was to investigate the influence of corpora lutea physical and functional characteristics on pregnancy rates in bovine recipients synchronized for fixed-time embryo transfer (FTET). Crossbred (Bos taurus taurus x Bos taurus indicus) nonlactating cows and heifers (n=259) were treated with the following protocol: 2mg estradiol benzoate (EB) plus an intravaginal progesterone device (CIDR 1.9g progesterone; Day 0); 400 IU equine chorionic gonadotropin (eCG; Day 5); prostaglandin F(2alpha) (PGF(2alpha)) and CIDR withdrawal (Day 8); and 1mg EB (Day 9). Ovarian ultrasonography and blood sample collections were performed on Day 17. Of the 259 cattle initially treated, 197 (76.1%) were suitable recipients; they received a single, fresh, quality grade 1 or 2 in vivo-derived (n=90) or in vitro-produced (n=87) embryo on Day 17. Pregnancy rates (23 d after embryo transfer) were higher for in vivo-derived embryos than for in vitro-produced embryos (58.8% vs. 31.0%, respectively; P<0.001). Mean (+/-SD) plasma progesterone (P(4)) concentration was higher in cattle that became pregnant than that in nonpregnant cattle (5.2+/-5.0 vs. 3.8+/-2.4 ng/mL; P=0.02). Mean pixel values (71.8+/-1.3 vs. 71.2+/-1.1) and pixel heterogeneity (14.8+/-0.3 vs. 14.5+/-0.5) were similar between pregnant and nonpregnant recipients (P>0.10). No significant relationship was detected between pregnancy outcome and plasma P(4), corpus luteum area, or corpus luteum echotexture. Embryo type, however, affected the odds of pregnancy. In conclusion, corpus luteum-related traits were poor predictors of pregnancy in recipients. The type of embryo, however, was a major factor affecting pregnancy outcome. MenosThe objective was to investigate the influence of corpora lutea physical and functional characteristics on pregnancy rates in bovine recipients synchronized for fixed-time embryo transfer (FTET). Crossbred (Bos taurus taurus x Bos taurus indicus) nonlactating cows and heifers (n=259) were treated with the following protocol: 2mg estradiol benzoate (EB) plus an intravaginal progesterone device (CIDR 1.9g progesterone; Day 0); 400 IU equine chorionic gonadotropin (eCG; Day 5); prostaglandin F(2alpha) (PGF(2alpha)) and CIDR withdrawal (Day 8); and 1mg EB (Day 9). Ovarian ultrasonography and blood sample collections were performed on Day 17. Of the 259 cattle initially treated, 197 (76.1%) were suitable recipients; they received a single, fresh, quality grade 1 or 2 in vivo-derived (n=90) or in vitro-produced (n=87) embryo on Day 17. Pregnancy rates (23 d after embryo transfer) were higher for in vivo-derived embryos than for in vitro-produced embryos (58.8% vs. 31.0%, respectively; P<0.001). Mean (+/-SD) plasma progesterone (P(4)) concentration was higher in cattle that became pregnant than that in nonpregnant cattle (5.2+/-5.0 vs. 3.8+/-2.4 ng/mL; P=0.02). Mean pixel values (71.8+/-1.3 vs. 71.2+/-1.1) and pixel heterogeneity (14.8+/-0.3 vs. 14.5+/-0.5) were similar between pregnant and nonpregnant recipients (P>0.10). No significant relationship was detected between pregnancy outcome and plasma P(4), corpus luteum area, or corpus luteum echotexture. Embryo type, however, affec... Mostrar Tudo |
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Palavras-Chave: |
Ecotextura; Ultrassonografia. |
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Thesagro: |
Corpo lúteo; Gado de corte; Transferência de embrião. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02520naa a2200265 a 4500
001 1660594
005 2010-03-11
008 2009 bl --- 0-- u #d
100 1 $aSIQUEIRA, L. G. B.
245 $aPregnancy rates and corpus luteum-related factors affecting pregnancy establishment in bovine recipients synchronized for fixed-time embryo transfer.
260 $c2009
520 $aThe objective was to investigate the influence of corpora lutea physical and functional characteristics on pregnancy rates in bovine recipients synchronized for fixed-time embryo transfer (FTET). Crossbred (Bos taurus taurus x Bos taurus indicus) nonlactating cows and heifers (n=259) were treated with the following protocol: 2mg estradiol benzoate (EB) plus an intravaginal progesterone device (CIDR 1.9g progesterone; Day 0); 400 IU equine chorionic gonadotropin (eCG; Day 5); prostaglandin F(2alpha) (PGF(2alpha)) and CIDR withdrawal (Day 8); and 1mg EB (Day 9). Ovarian ultrasonography and blood sample collections were performed on Day 17. Of the 259 cattle initially treated, 197 (76.1%) were suitable recipients; they received a single, fresh, quality grade 1 or 2 in vivo-derived (n=90) or in vitro-produced (n=87) embryo on Day 17. Pregnancy rates (23 d after embryo transfer) were higher for in vivo-derived embryos than for in vitro-produced embryos (58.8% vs. 31.0%, respectively; P<0.001). Mean (+/-SD) plasma progesterone (P(4)) concentration was higher in cattle that became pregnant than that in nonpregnant cattle (5.2+/-5.0 vs. 3.8+/-2.4 ng/mL; P=0.02). Mean pixel values (71.8+/-1.3 vs. 71.2+/-1.1) and pixel heterogeneity (14.8+/-0.3 vs. 14.5+/-0.5) were similar between pregnant and nonpregnant recipients (P>0.10). No significant relationship was detected between pregnancy outcome and plasma P(4), corpus luteum area, or corpus luteum echotexture. Embryo type, however, affected the odds of pregnancy. In conclusion, corpus luteum-related traits were poor predictors of pregnancy in recipients. The type of embryo, however, was a major factor affecting pregnancy outcome.
650 $aCorpo lúteo
650 $aGado de corte
650 $aTransferência de embrião
653 $aEcotextura
653 $aUltrassonografia
700 1 $aTORRES, C. A. A.
700 1 $aSOUZA, E. D.
700 1 $aMONTEIRO JUNIOR, P. L. J.
700 1 $aARASHIRO, E. K. N.
700 1 $aCAMARGO, L. S. A.
700 1 $aFERNANDES, C. A. C.
700 1 $aVIANA, J. H. M.
773 $tTheriogenology$gv. 72, p. 949-958, 2009.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
27/10/2010 |
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Data da última atualização: |
18/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CECCON, G.; ROCHA, L. M. P.; FONSECA, I. C.; NETO, A. L. N.; SEREIA, R. C. |
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Afiliação: |
GESSI CECCON, CPAO; LEONARDO MELO PEREIRA DA ROCHA, CNPMS; ISLAINE C. FONSECA, BOLSISTA; UFGD; RODRIGO C. SEREIA, UFGD. |
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Título: |
Avaliação de cultivares de milho na safra 2009/2010, em Dourados, MS. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 28.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA DO CARTUCHO, 4., 2010, Goiânia. Potencialidades, desafios e sustentabilidade: resumos expandidos... Sete Lagoas: ABMS, 2010. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Genótipos. |
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Thesagro: |
Produtividade; Zea Mays. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/25307/1/0087.pdf
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Marc: |
LEADER 00716nam a2200193 a 4500
001 1865417
005 2018-07-18
008 2010 bl uuuu u00u1 u #d
100 1 $aCECCON, G.
245 $aAvaliação de cultivares de milho na safra 2009/2010, em Dourados, MS.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE MILHO E SORGO, 28.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA DO CARTUCHO, 4., 2010, Goiânia. Potencialidades, desafios e sustentabilidade: resumos expandidos... Sete Lagoas: ABMS$c2010
300 $c1 CD-ROM.
650 $aProdutividade
650 $aZea Mays
653 $aGenótipos
700 1 $aROCHA, L. M. P.
700 1 $aFONSECA, I. C.
700 1 $aNETO, A. L. N.
700 1 $aSEREIA, R. C.
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Embrapa Milho e Sorgo (CNPMS) |
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