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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
29/12/2011 |
Data da última atualização: |
21/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SUDANO, M. J.; LANDIM-ALVARENGA, F. da C.; SARTORI, R.; MACHADO, R. |
Afiliação: |
MATEUS JOSÉ SUDANO, UNESP/BOTUCATU; FERNANDA DA CRUZ LANDIM ALVARENGA, UNESP/BOTUCATU; ROBERTO SARTORI, USP-ESALQ; RUI MACHADO, CPPSE. |
Título: |
Reuse of norgestomet implants in an eCG-based superovulation protocol administered to Nelore (Bos taurus indicus) cows. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Livestock Science, v. 141, n. 2-3, p. 207-212, nov. 2011. |
DOI: |
https://doi.org/10.1016/j.livsci.2011.06.003 |
Idioma: |
Inglês |
Conteúdo: |
This study assessed the reuse of norgestomet implants in Nelore cows thatwere superstimulated with eCG. In a crossover design trial, eight cows were randomly divided into two experimental groups and twice superstimulated: Group 1 ? half of the cows received a new norgestomet implant and 2 mg estradiol benzoate (EB) on Day 0; Group 2 ? remaining cows received two once-used norgestomet implants and 2 mg EB also on Day 0. On Day 4 all cows received a single dose of 2000 IU eCG, and on Day 6 cows were treated with two doses of PGF2α 12 h apart. Ovulation was induced with 12.5mg pLH 12 h after implant withdrawal (on Day 7), and fixedtime artificial inseminations were carried out 12 and 24 h later. Seven days after pLH injection embryos were recovered and blood samples were taken to determine circulating progesterone. Ultrasound examinations were performed at pLH administration and at embryo recovery. The number of large follicles (≥8 mm) was greater (Pb0.05) in Group 1 (17.1±1.8) than in Group 2 cows (9.7±1.6). Themean number of corpora luteawas greater (Pb0.05) for Group 1 (13.8±1.8) as compared to Group 2 cows (5.4±1.0) and the percentage of large follicles that ovulated following pLH administration also differed (Pb0.05) between treatments (80.3% and 53.8% for cows in Groups 1 and 2, respectively). However, no differences (PN0.05) were found between treatments (respectively, for Group 1 and Group 2 cows) in the follicle diameter (10.5±1.6 and 10.2±1.7 mm), corpus luteum(CL) diameter (15.7±1.8 and 14.4±1.7 mm), CL volume(2232± 1356 and 1893±1828mm3), ova/embryos recovered (6.3±1.1 and 4.0±1.9), transferable embryos (4.0±1.8 and 2.5±1.0) and plasma progesterone concentration (36.1±8.3 and 35.1± 6.9 ng/mL). In conclusion, the stimulatory effects on the ovaries provided by the use of two onceused implants were less intense than the ones verified after using a new implant MenosThis study assessed the reuse of norgestomet implants in Nelore cows thatwere superstimulated with eCG. In a crossover design trial, eight cows were randomly divided into two experimental groups and twice superstimulated: Group 1 ? half of the cows received a new norgestomet implant and 2 mg estradiol benzoate (EB) on Day 0; Group 2 ? remaining cows received two once-used norgestomet implants and 2 mg EB also on Day 0. On Day 4 all cows received a single dose of 2000 IU eCG, and on Day 6 cows were treated with two doses of PGF2α 12 h apart. Ovulation was induced with 12.5mg pLH 12 h after implant withdrawal (on Day 7), and fixedtime artificial inseminations were carried out 12 and 24 h later. Seven days after pLH injection embryos were recovered and blood samples were taken to determine circulating progesterone. Ultrasound examinations were performed at pLH administration and at embryo recovery. The number of large follicles (≥8 mm) was greater (Pb0.05) in Group 1 (17.1±1.8) than in Group 2 cows (9.7±1.6). Themean number of corpora luteawas greater (Pb0.05) for Group 1 (13.8±1.8) as compared to Group 2 cows (5.4±1.0) and the percentage of large follicles that ovulated following pLH administration also differed (Pb0.05) between treatments (80.3% and 53.8% for cows in Groups 1 and 2, respectively). However, no differences (PN0.05) were found between treatments (respectively, for Group 1 and Group 2 cows) in the follicle diameter (10.5±1.6 and 10.2±1.7 mm), corpus lu... Mostrar Tudo |
Palavras-Chave: |
Bos taurus indicus; ECG; Nelore. |
Thesagro: |
Bovino. |
Thesaurus Nal: |
norgestomet; superovulation. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/51395/1/PROCI-2011.00290.pdf
|
Marc: |
LEADER 02672naa a2200241 a 4500 001 1911159 005 2022-07-21 008 2011 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.livsci.2011.06.003$2DOI 100 1 $aSUDANO, M. J. 245 $aReuse of norgestomet implants in an eCG-based superovulation protocol administered to Nelore (Bos taurus indicus) cows.$h[electronic resource] 260 $c2011 520 $aThis study assessed the reuse of norgestomet implants in Nelore cows thatwere superstimulated with eCG. In a crossover design trial, eight cows were randomly divided into two experimental groups and twice superstimulated: Group 1 ? half of the cows received a new norgestomet implant and 2 mg estradiol benzoate (EB) on Day 0; Group 2 ? remaining cows received two once-used norgestomet implants and 2 mg EB also on Day 0. On Day 4 all cows received a single dose of 2000 IU eCG, and on Day 6 cows were treated with two doses of PGF2α 12 h apart. Ovulation was induced with 12.5mg pLH 12 h after implant withdrawal (on Day 7), and fixedtime artificial inseminations were carried out 12 and 24 h later. Seven days after pLH injection embryos were recovered and blood samples were taken to determine circulating progesterone. Ultrasound examinations were performed at pLH administration and at embryo recovery. The number of large follicles (≥8 mm) was greater (Pb0.05) in Group 1 (17.1±1.8) than in Group 2 cows (9.7±1.6). Themean number of corpora luteawas greater (Pb0.05) for Group 1 (13.8±1.8) as compared to Group 2 cows (5.4±1.0) and the percentage of large follicles that ovulated following pLH administration also differed (Pb0.05) between treatments (80.3% and 53.8% for cows in Groups 1 and 2, respectively). However, no differences (PN0.05) were found between treatments (respectively, for Group 1 and Group 2 cows) in the follicle diameter (10.5±1.6 and 10.2±1.7 mm), corpus luteum(CL) diameter (15.7±1.8 and 14.4±1.7 mm), CL volume(2232± 1356 and 1893±1828mm3), ova/embryos recovered (6.3±1.1 and 4.0±1.9), transferable embryos (4.0±1.8 and 2.5±1.0) and plasma progesterone concentration (36.1±8.3 and 35.1± 6.9 ng/mL). In conclusion, the stimulatory effects on the ovaries provided by the use of two onceused implants were less intense than the ones verified after using a new implant 650 $anorgestomet 650 $asuperovulation 650 $aBovino 653 $aBos taurus indicus 653 $aECG 653 $aNelore 700 1 $aLANDIM-ALVARENGA, F. da C. 700 1 $aSARTORI, R. 700 1 $aMACHADO, R. 773 $tLivestock Science$gv. 141, n. 2-3, p. 207-212, nov. 2011.
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Embrapa Pecuária Sudeste (CPPSE) |
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Registros recuperados : 8 | |
2. | | MAZIEIRO, R. R. D.; GUAITOLINI, C. R. de F.; PASCHOAL, D. M.; CRESPILHO, A. M.; SESTARI, D. A. O.; DODE, M. A. N.; LANDIM-ALVARENGA, F. da C. Effects of the addition of oocyte meiosis-inhibiting drugs on the expression of maturation-promoting factor components and organization of cytoplasmic organelles. Reproductive Biology, v. 20, p. 48-62, 2020.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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3. | | SUDANO, M. J.; PASCHOAL, D. M.; RASCADO, T. da S.; CROCOMO, L. F.; MAGALHÃES, L. C. O.; MARTINS JÚNIOR, A.; MACHADO, R.; LANDIM-ALVARENGA, F. da C. Crucial surviving aspects for vitrified in vitro-produced bovine embryos. Zygote, v. 20, p. 1-8, 2012.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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4. | | SUDANO, M. J; PASCHOAL, D. M.; RASCADO, T. S.; MAGALHÃES, L. C. O.; CROCOMO, L. F.; LIMA NETO, J. F.; MACHADO, R.; LANDIM ALVARENGA, F. da C. Phenazine ethosulfate and fetal calf serum effects on the development and apoptosis in vitro produced bovne embryos. Reproduction Fertility and Development, v. 23, p. 173, 2011.Tipo: Artigo em Periódico Indexado |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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5. | | SUDANO, M. J.; CRESPILHO, A. M.; FERNANDES, C. B.; MARTINS JUNIOR, A.; PAPA, F. O.; RODRIGUES, J.; MACHADO, R.; LANDIM-ALVARENGA, F. da C. Use of Bayesian Inference to correlate in vitro embryo production and in vivo fertility in zebu bulls. Veterinary Medicine International, v.2011, Article ID 436381, 2011. 6 p.Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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6. | | SUDANO, M. J; PASCHOAL, D. M.; GUASTALI, M. D.; MAZIERO, R. R. D.; CROCOMO, L. F.; MAGALHÃES, L. C. O.; MONTEIRO, B. A.; LIMA NETO, J. F.; MARTINS JÚNIOR, A.; MACHADO, R.; LANDIM ALVARENGA, F. da C. Apoptosis in fresh and vitrified in vitro and in vivo produced bovine embryos. Acta Sicentiae veternariae, v. 39 (Suppl. 1), Porto Alegre 2011Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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7. | | FERNANDES, C. E.; OLIVEIRA, A. R.; MIRANDA, P. de A. B.; LOPES, S. da C. P.; MORAES, S. da S.; MORAIS, M. da G.; ABREU, U. G. P. de; LANDIM-ALVARENGA, F. da C. Alterações na morfologia espermática em touros de corte com e sem suplementação de zinco na mistura mineral. Ciência Animal Brasileira, Goiás, v.10, n.4, p.1074-1083, out./dez.2009.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
Biblioteca(s): Embrapa Pantanal. |
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8. | | SUDANO, M. J.; PASCHOAL, D. M.; MAZIERO, R. R. D.; RASCADO, T. da S.; GUASTALI, M. D.; CROCOMO, L. F.; MAGALHAES, L. C. O.; MONTEIRO, B. A.; MARTINS JUNIOR, A.; MACHADO, R.; LANDIM-ALVARENGA, F. da C. Melhorando a capacidade de sobrevivência após a criopreservação: uma abordagem embrionária. REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 27., 2013, Praia do Forte. Anais... Praia do Forte, BA: SBTE, 2013. p. 59-66.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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Registros recuperados : 8 | |
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