Data/hora: 22/06/2024 01:07:49

Biblioteca(s): 	Embrapa Caprinos e Ovinos; Embrapa Gado de Leite.	
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