Data/hora: 05/06/2024 05:30:04

Biblioteca(s): 	Embrapa Caprinos e Ovinos; Embrapa Gado de Leite.	
Data corrente: 	21/08/2020	
Data da última atualização: 	09/08/2021	
Autoria: 	MORAIS, M. C. C.; ESTEVES, L. V.; SOUZA-FABJAN, J. M. G.; OLIVEIRA, M. E. F.; SILVA, M. R.; BRANDÃO; FONSECA, J. F. da.	
Afiliação: 	MARIA CLARA C. MORAIS, Universidade Federal Fluminense; LUCIANA V. ESTEVES, Universidade Federal Fluminense; JOANNA M. G. SOUZA-FABJAN, Universidade Federal Fluminense; MARIA EMILIA F. OLIVEIRA, Universidade Estadual Paulista; MARCIO ROBERTO SILVA, CNPGL; FELIPE Z. BRANDÃO, Universidade Federal Fluminense; JEFERSON FERREIRA DA FONSECA, CNPC.	
Título: 	Factors affecting pregnancy rates for goat embryos recovered and transferred by transcervical route.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Small Ruminant Research, v. 192, e106215, 2020.	
DOI: 	https://doi.org/10.1016/j.smallrumres.2020.106215	
Idioma: 	Inglês	
Conteúdo: 	Abstract: This study evaluated the factors affecting non-surgical embryo transfer (NSET) efficiency in goats. Donor goats (n =10) were superovulated, mated and embryos were collected by non-surgical embryo recovery 7 d after estrous onset. A total of 28 pluriparous recipient goats were subjected to short-term progestagen-based estrous induction protocol with equine chorionic gonadotropin. They received 36 fresh embryos as single (n =20) or in pairs (n =8) by NSET 6?7 d after estrous onset, ipsilateral to the corpora lutea (CL). Pregnancy rate was affected (P <0.05) by embryo stage (blastocyst =63.6 % vs morulae =24.0 %) and quality (Grade 1 =57.1 %; 2 =33.3 %; 3 =10.0 %) and not (P >0.05) by the uterine horn, number of CL (1?3), lactational status and number of embryos transferred per recipient goats. Both overall pregnancy and kidding rates were 32.1 % and 13 kids were born, representing an embryo survival rate of 36.1 %. Goat embryo transfer programs can be successfully performed by using non-surgical techniques, achieving satisfactory embryonic survival rates.	
Palavras-Chave: 	Embryo quality; Transcervical embryo transfer.	
Thesagro: 	Caprino; Reprodução Animal; Transferência de Embrião.	
Thesaurus Nal: 	Animal reproduction; Goats.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Gado de Leite (CNPGL)	
Exemplares: 	CNPC - (39624-1) - UPC - AP - DD -  -  -  - DIS
CNPGL - (25150-1) - UPC - AP - DD -  -  -  - DIS