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| VERGANI, G. B.; ARRAIS, A. M.; MELLO, M. R. B. de; DIAS, J. H.; SOUSA, M. A. P. de; MORAIS, M. C. da C.; FERREIRA, H. C.; BEVILAQUA, J. R.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
| Abstract: The variability of superovulatory responses is still a limiting factor for the consolidation of commercial embryo transfer programs in small ruminants (Bartlewski et al. 2016. Theriogenology, 86: 130-143). Superovulation protocols are traditionally performed with prior use of progesterone devices for short- or long-term duration (Oliveira et al. 2014. Anim Reprod Sci, 144: 30-37) associated exogenous FSH administration. The presence of dominant follicles in the ovary at the beginning of FSH treatment is detrimental to the growth of the other follicles, in addition, a greater number of antral follicles is required to have a bigger superovulatory response (Fonseca et al., 2010 Acta Sci Vet, 38: 337-369). In this context, the objective of this study... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Ovarian population; População ovariana; Ovino; Ovelha; Progesterona; Superovulação; Reprodução Animal; Transferência de Embrião; Sheep; Animal reproduction; Progesterone; Superovulation; Embryo transfer. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112224 |
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| PRELLWITZ, L.; ARRAIS, A. M.; MELLO, M. R. B. de; VERGANI, G. B.; ESTEVES, S. N.; BARBOSA, N. O.; CARVALHO, B. P.; DIAS, J. H.; OLIVEIRA, M. E. F.; FONSECA, J. F. da. |
| Abstract: The first stet for applying superovulation is to know the responsiveness of the ewe to different estrous synchronous protocol duration and possible implications on embryo yield. On the other hand for nonsurgical embryo recovery (NSER) a well consolidated protocol should be tested and, in Morada Nova ewes, successful non-surgical uterine access was reported (Fonseca et al., 2019. Reprod Fertil Devel, 31:17-26). In this context, the objective of this study was to evaluate the efficiency different synchronous estrus induction and NSER as additional tool to evaluate the results these protocols in pluriparous Morada Nova ewes. A total of 18 pluriparous sheep were divided into three treatment groups with 6 (T6, n=6), 9 (T9, n=6) and 12 (T12, n=6) days... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Ovino; Ovelha; Reprodução Animal; Superovulação; Progesterona; Transferência de Embrião; Sheep; Small ruminants; Superovulation; Progesterone; Embryo transfer. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112197 |
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| ARRAIS, A. M.; MELLO, M. R. B. de; VERGANI, G. B.; ESTEVES, S. N.; GARCIA, A. R.; PEREIRA, V. S. do A.; PRELLWITZ, L.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
| Abstract: Transcervical transposition in sheep cannot be achieved without any cervical relaxation drug (Gusmão et al., 2007, RevBrasSaúdeProdAn, 8:1-10). The first step testing the viability of cervical relaxation protocol for transcervical embryo transfer in sheep is to check the effect of these drugs on pregnancy. Although combination of estradiol benzoate and oxytocin did not compromise pregnancy establishment, no attempts of cervical transposition was reported in sheep (Lewis, 2010. SheepGoatResJ, 25:21-25). In Brazilian conditions, preliminary study showed that association of hCG with E2-OT association given at expected times for embryo transfer appeared not disturbing pregnancy (Arrais et al., 2018. AnimRep, 15:338), but cervical transposition was... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Receptoras; Inovulação não-cirúrgica; Recipients; Non-surgical inovulation; Ovino; Transferência de Embrião; Reprodução Animal; Sheep; Ewes; Small ruminants.; Animal reproduction. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112209 |
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| ARRAIS, A. M.; MELLO, M. R. B. de; VERGANI, G. B.; ESTEVES, S. N.; GARCIA, A. R.; PEREIRA, V. S. do A.; PRELLWITZ, L.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
| Transcervical transposition in sheep cannot be achieved without any cervical relaxation drug (Gusmaoet al., 2007, RevBrasSatideProdAn, 8:1-10). The first step testing the viability of cervical relaxation protocol for transcervical embryo transfer in sheep is to check the effect of these drugs on pregnancy. |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Pequenos ruminantes; Inovulação não-cirúrgica; Receptoras; Non-surgical inovulation; Recipients; Small ruminants. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116642 |
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| ARRAIS, A. M.; MELLO, M. R. B. de; VERGANI, G. B.; FIGUEIRA, L. M.; SOUSA, M. A. P. de; CARVALHO, B. P.; ROMANELLO, N.; PRELLWITZ, L.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
| Abstract: Despite the importance of Morada Nova for Northeast sheep production systems, information about embryo production of this breed is scarce with only one report of multiple ovulation and surgical embryo recovery (Brasil et al., 2016. ArqBrasMedVetZootec, 68:1390-1394) and non-surgical uterine access (Fonseca et al., 2016. Theriogenology, 86:144-151). In this context, the objective of this study was to evaluate the efficiency of different superovulation protocols in pluriparous Morada Nova using nonsurgical embryo recovery (NSER) to access embryo production. [Superovulação de ovelhas Morada Nova com protocolos divergentes apenas do regime de duração da progestágeno]. |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Ovino; Ovelha; Reprodução Animal. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112203 |
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