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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
24/11/2016 |
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Data da última atualização: |
24/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PUGLIESI, G.; SANTOS, F. B.; LOPES, E.; NOGUEIRA, E.; MAIO, J. R. G.; BINELLI, M. |
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Afiliação: |
G. PUGLIESI, University of São Paulo; F. B. SANTOS, UNIVERSITY OF SÃO PAULO; E. LOPES, UNIVERSITY OF SÃO PAULO; ERIKLIS NOGUEIRA, CPAP; J. R. G. MAIO, OURO FINO SAÚDE ANIMAL; M. BINELLI., UNIVERSITY OF SÃO PAULO. |
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Título: |
Improved fertility in suckled beef cows ovulating large follicles or supplemented with long-acting progesterone after timed-AI. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Theriogenology, n. 85, n. 7, p. 1239-1248, April 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
We aimed to evaluate the effects and the interaction of size of the preovulatory follicle (POF) and long-acting progesterone (P4) supplementation after timed-AI on CL function and pregnancy success in beef cows. In experiment 1, ovulations of beef cows were synchronized starting on Day 10, and cows were split to receive sodium cloprostenol (large follicle group; LF; n ¼ 31) or nothing (small follicle group; SF; n ¼ 35). Ovulations were induced on Day 0, and cows were inseminated. Ovulated cows were assigned to receive placebo (LF/control group, n ¼ 14; and SF/control group, n ¼ 9) or 150 mg of long-acting P4 on Day 4.5 (LF/P4 group, n ¼ 13; and SF/P4 group, n ¼ 12). Diameter of POF, blood flow in POF wall, ovulation rate, and size and vascularization of CL were greater (P < 0.05) in LF group. In experiments 2 (unknown cyclic status) and 4 (noncycling), ovulations were synchronized, and beef cows received placebo or 150 mg of long-acting P4 on Day 4 after timed-artificial insemination. In experiment 2, pregnancy/AI (P/AI) did not differ (P > 0.1) between P4-treated (53.2%; 209/393) and control cows (56.2%; 219/390), but P/AI was greater in cows with a CL < 0.9 cm2 on Day 4 that were P4-treated (57.9%, 22/38) versus placebo-treated (40.4%, 21/52; P < 0.05). In Experiment 4, P/AI was greater (P < 0.05) in P4-treated cows (55.6%, 105/189 vs. 46.0%, 86/187). In Experiment 3, cyclic?suckled beef cows were treated as described in Experiment 1 to generate animals with small (SF; n ¼ 111) or large POF (LF; n ¼ 109), and subdivided to receive placebo or P4 on Day 4. POF size, ovulation rate, CL area, and P/AI were greater (P < 0.007) in the LF group. Pregnancy/AI in ovulated cows were lower (P ¼ 0.05) in the SF/control group (41.5%, 17/41) compared to LF/control group (62%, 31/50) and were similar for the SF/P4 group (55.6%, 25/45) and LF/P4 group (57%, 28/49) compared to others. In summary, smaller and less vascularized POF results in less functional CL and reduces ovulatory rate and P/AI in cyclic beef cows; the long-acting P4 injection on Day 4 after timed-artificial insemination may attenuate the negative effects of small POF/CL; and postovulatory P4 supplementation improved fertility in anestrous beef cattle. MenosWe aimed to evaluate the effects and the interaction of size of the preovulatory follicle (POF) and long-acting progesterone (P4) supplementation after timed-AI on CL function and pregnancy success in beef cows. In experiment 1, ovulations of beef cows were synchronized starting on Day 10, and cows were split to receive sodium cloprostenol (large follicle group; LF; n ¼ 31) or nothing (small follicle group; SF; n ¼ 35). Ovulations were induced on Day 0, and cows were inseminated. Ovulated cows were assigned to receive placebo (LF/control group, n ¼ 14; and SF/control group, n ¼ 9) or 150 mg of long-acting P4 on Day 4.5 (LF/P4 group, n ¼ 13; and SF/P4 group, n ¼ 12). Diameter of POF, blood flow in POF wall, ovulation rate, and size and vascularization of CL were greater (P < 0.05) in LF group. In experiments 2 (unknown cyclic status) and 4 (noncycling), ovulations were synchronized, and beef cows received placebo or 150 mg of long-acting P4 on Day 4 after timed-artificial insemination. In experiment 2, pregnancy/AI (P/AI) did not differ (P > 0.1) between P4-treated (53.2%; 209/393) and control cows (56.2%; 219/390), but P/AI was greater in cows with a CL < 0.9 cm2 on Day 4 that were P4-treated (57.9%, 22/38) versus placebo-treated (40.4%, 21/52; P < 0.05). In Experiment 4, P/AI was greater (P < 0.05) in P4-treated cows (55.6%, 105/189 vs. 46.0%, 86/187). In Experiment 3, cyclic?suckled beef cows were treated as described in Experiment 1 to generate animals with small (SF; n ¼... Mostrar Tudo |
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Thesagro: |
Gado de corte; Ovulacao; Reproducao animal. |
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Thesaurus Nal: |
Animal reproduction; beef; Beef cows; cows; Ovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03031naa a2200277 a 4500
001 2057066
005 2016-11-24
008 2016 bl uuuu u00u1 u #d
100 1 $aPUGLIESI, G.
245 $aImproved fertility in suckled beef cows ovulating large follicles or supplemented with long-acting progesterone after timed-AI.
260 $c2016
520 $aWe aimed to evaluate the effects and the interaction of size of the preovulatory follicle (POF) and long-acting progesterone (P4) supplementation after timed-AI on CL function and pregnancy success in beef cows. In experiment 1, ovulations of beef cows were synchronized starting on Day 10, and cows were split to receive sodium cloprostenol (large follicle group; LF; n ¼ 31) or nothing (small follicle group; SF; n ¼ 35). Ovulations were induced on Day 0, and cows were inseminated. Ovulated cows were assigned to receive placebo (LF/control group, n ¼ 14; and SF/control group, n ¼ 9) or 150 mg of long-acting P4 on Day 4.5 (LF/P4 group, n ¼ 13; and SF/P4 group, n ¼ 12). Diameter of POF, blood flow in POF wall, ovulation rate, and size and vascularization of CL were greater (P < 0.05) in LF group. In experiments 2 (unknown cyclic status) and 4 (noncycling), ovulations were synchronized, and beef cows received placebo or 150 mg of long-acting P4 on Day 4 after timed-artificial insemination. In experiment 2, pregnancy/AI (P/AI) did not differ (P > 0.1) between P4-treated (53.2%; 209/393) and control cows (56.2%; 219/390), but P/AI was greater in cows with a CL < 0.9 cm2 on Day 4 that were P4-treated (57.9%, 22/38) versus placebo-treated (40.4%, 21/52; P < 0.05). In Experiment 4, P/AI was greater (P < 0.05) in P4-treated cows (55.6%, 105/189 vs. 46.0%, 86/187). In Experiment 3, cyclic?suckled beef cows were treated as described in Experiment 1 to generate animals with small (SF; n ¼ 111) or large POF (LF; n ¼ 109), and subdivided to receive placebo or P4 on Day 4. POF size, ovulation rate, CL area, and P/AI were greater (P < 0.007) in the LF group. Pregnancy/AI in ovulated cows were lower (P ¼ 0.05) in the SF/control group (41.5%, 17/41) compared to LF/control group (62%, 31/50) and were similar for the SF/P4 group (55.6%, 25/45) and LF/P4 group (57%, 28/49) compared to others. In summary, smaller and less vascularized POF results in less functional CL and reduces ovulatory rate and P/AI in cyclic beef cows; the long-acting P4 injection on Day 4 after timed-artificial insemination may attenuate the negative effects of small POF/CL; and postovulatory P4 supplementation improved fertility in anestrous beef cattle.
650 $aAnimal reproduction
650 $abeef
650 $aBeef cows
650 $acows
650 $aOvulation
650 $aGado de corte
650 $aOvulacao
650 $aReproducao animal
700 1 $aSANTOS, F. B.
700 1 $aLOPES, E.
700 1 $aNOGUEIRA, E.
700 1 $aMAIO, J. R. G.
700 1 $aBINELLI, M.
773 $tTheriogenology$gn. 85, n. 7, p. 1239-1248, April 2016.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 37 | |
| 4. |  | MACHADO, R.; BERGAMASCHI, M. A. C. M.; BARBOSA, R. T.; OLIVIEIRA, C. A.; BINELLI, M. Effects of estradiol-17Beta on ovarian function and preganancy in Nelore cows. In: INTERNATIONAL SYMPOSIUM ON ANIMAL BIOLOGY OF REPRODUCTION, 2., 2008, São Paulo, SO. Absracts... São Paulo: CBRA, 2008. p. 268. p. 228.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | PUGLIESI, G.; SANTOS, F. B.; LOPES, E.; NOGUEIRA, E.; MAIO, J. R. G.; BINELLI, M. Improved fertility in suckled beef cows ovulating large follicles or supplemented with long-acting progesterone after timed-AI. Theriogenology, n. 85, n. 7, p. 1239-1248, April 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pantanal. |
|  |
| 16. | | MACHADO, R.; BERGAMASCHI, M. A. C. M.; FIGUEIREDO, R. A.; BARBOSA, R. T.; ANDREO, R.; BERTAN, C. M.; BINELLI, M. Comportamento reprodutivo e função ovariana em vacas de corte Nelore (Bos taurus indicus) após indução da ovulação e tratamento com GnRH e hCG. Acta Scientiae Veterinariae, v. 36, Supl. 2, s451, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 17. | | ROSSETTI, R. C.; PERDIGÃO, A.; SÁ FILHO, M.; NOGUEIRA, G. P.; MACHADO, R.; MEMBRIVE, C. M. B.; BINELLI, M. Effects of flunixin meglumine, recombinant bovine somatotropin and/or human chorionic gonadotropin on pregnancy rates in Nelore cows. Theriogenology, v. 76, n. 4, p. 751-758, sep. 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 18. | | PERDIGÃO, A.; ROSSETI, R. C.; NOGUEIRA, G. P.; SÁ FILHO, M.; BINELLI, M.; MACHADO, R.; MEMBRIVE, C. M. B. Effect of fluxinin meglumin, recombinant bovine somatotropin and/or human chorionic gonadotropin in reducing embryo mortality in nelore cows (Bos taurus indicus). In: INTERNATIONAL SYMPOSIUM ANIMAL BIOLOGY OF REPRODUCTIVE, 3., 2010, Águas de São Pedro. Abstracts... São Pedro: CBRA, 2010.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 19. | | MACHADO, R.; SUDANO, M. J.; PASCHOAL, D. M.; NOGUEIRA, G. P.; BERTAN, C. M.; LANDIM-ALVARENGA, F. .C.; BINELLI, M. Hormonal treatment to improve embryo survival in beef cows after fixed time artificial insemination. In: IV International Symposium on Animal Biology of Reproduction (ISABR 2012). Animal Reproduction, v.9, n.4, p.859, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 20. | | MACHADO, R.; BERGAMASCHI, M. A. C. M.; ALMEIDA, R. G.; SUDANO, M. J.; ALENCAR, M. M. de; BINELLI, M. Progestogen or GnRH-hCG supplementation after artificial insemination in postpartum beef cows. In: 26th Annual Meeting of the Brazilian Embryo Technology Society (SBTE). Animal Reproduction, v.9, n.3, p.534, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 37 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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