Data/hora: 06/06/2024 10:18:58

Biblioteca(s): | Embrapa Caprinos e Ovinos; Embrapa Gado de Leite.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 18/03/2019
Data da última atualização: | 07/11/2019
Autoria: | FONSECA, J. F. da; ZAMBRINI, F. N.; GUIMARÃES, J. D.; SILVA, M. R.; OLIVEIRA, M. E. F.; BARTLEWSKI, P. M.; SOUZA-FABJAN, J. M. G.
Afiliação: | JEFERSON FERREIRA DA FONSECA, CNPC; Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brazil; Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brazil; MARCIO ROBERTO SILVA, CNPGL; Universidade Estadual Paulista (Unesp) - Jaboticabal, SP, Brazil; University of Guelph - Guelph, ON, Canada; Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil.
Título: | Cervical penetration rates and efficiency of non-surgical embryo recovery in estrous-synchronized Santa Inês ewes after administration of estradiol ester (benzoate or cypionate) in combination with d-cloprostenol and oxytocin.
Ano de publicação: | 2019
Fonte/Imprenta: | Animal Reproduction Science, v. 203, p. 25-32, Apr. 2019.
DOI: | 10.1016/j.anireprosci.2019.02.004
Idioma: | Inglês
Conteúdo: | The effects of estradiol esters, D-cloprostenol and oxytocin on induction of cervical dilation prior to non-surgical embryo recovery in Santa Inês ewes (Days 6–7 estrous cycle) were assessed in this study. In Trial 1, transcervical embryo flushing was performed in estrous-induced ewes administered 37.5 ug of D-cloprostenol i.m. 10 h before and 50 IU of oxytocin i.v. 20 min before uterine flushing with (EB-PGF-OT; n=13) or without (PGF-OT; n=11) 1 mg of estradiol benzoate i.m. administered concurrently with D-cloprostenol injection. In Trial 2, the estroussynchronized animals were treated with 1 mg of estradiol benzoate (EB-PGF-OT; n=12) or estradiol cypionate (EC-PGF-OT; n=12) i.m. along with 37.5 ug of D-cloprostenol i.m. 16 h before and 50 IU of oxytocin i.v. 20 min before uterine flushing. In Trial 1, uterine flushing could be accomplished in 38% of ewes in the EB-PGF-OT and 27% those in the PGF-OT (P>0.05) group. Flushing fluid recovery averaged 90% and there were 1.0 ± 1.1 embryos/ewe collected with mean duration of the flushing procedure being ˜36 min. In Trial 2, uterine flushing was accomplished in 78% of ewes in the EB-PGF-OT and 44% of those in the EC-PGF-OT group (P>0.05) with mean flushing fluid recovery rate being 88% and time elapsing to complete flushing being ˜33 min. Within the subsets of animals treated with EB, the percentages of successful transcervical penetrations were 38% compared with 78% in Trials 1 and 2, respectively (i.e., with EB administered 10 h compared with 16 h before uterine flushing: P<0.05). The interval from EB administration to the beginning of transcervical penetration can affect the efficacy of embryo recovery procedures utilizing a combined EB/d-cloprostenol/oxytocin pre-treatment.
Palavras-Chave: | Cervical dilation; Estradiol esters; Transcervical embryo recovery.
Thesaurus Nal: | Animal reproduction; Cloprostenol; Embryo transfer; Oxytocin; Sheep.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Caprinos e Ovinos (CNPC)

Exemplares:

CNPC - (38995-1) - UPC - AP - PP -  -  -  - DIS
CNPGL - (24916-1) - UPC - AP - DD -  -  -  - DIS