Data/hora: 24/09/2024 04:37:03

Biblioteca(s): 	Embrapa Amazônia Oriental; Embrapa Gado de Leite.	
Data corrente: 	14/12/2020	
Data da última atualização: 	14/12/2020	
Autoria: 	FIGUEIRO, M. R.; GARCIA, J. M.; LIMA, M. R. de; COLLADO, M. del; SARAIVA, N. Z.	
Afiliação: 	MARIVALDO RODRIGUES FIGUEIRO, CPATU; Joaquim Mansano Garcia, UNESP; Marina Ragagnin de Lima, UNESP; Maite del Collado, USP; NAIARA ZOCCAL SARAIVA, CNPGL.	
Título: 	Is it possible to alter the embryo lipid accumulation with reduction of fetal bovine serum and use of l-carnitine for in vitro maturation of bubaline oocytes?	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Zygote, v. 28, n. 2, p. 109-115, Apr. 2020.	
DOI: 	https://doi.org/10.1017/S096719941900073X	
Idioma: 	Inglês	
Conteúdo: 	In vitro embryo production (IVEP) is a procedure that can promote genetic improvement in a short time frame. However, the success rates obtained with this biotechnology in water buffaloes are still inconsistent, and can be associated with the high concentration of lipids in the cytoplasm of oocytes and embryos. The objective of this study was to evaluate the effects of reduced concentration of fetal bovine serum (FBS) and/or use of l-carnitine during in vitro maturation (IVM) on the preimplantation development and lipid accumulation in bubaline embryos. In a first experiment, the lowest concentration of FBS in the IVM medium (0%, 2.5%, 5% or 10%) was determined, and the lowest concentration that maintained good embryo development rates was 5%. In a second experiment, the addition of 5 mM of l-carnitine into the maturation medium was evaluated. The blastocysts produced were submitted to lipid evaluation involving staining followed by observation using optical (Oil Red O) and confocal (BODIPY 493/503) microscopy. No difference was observed between the 5% and 10% FBS groups, which were superior to the 0% and 2.5% groups. Furthermore, the performance of the groups treated with 5% and 10% FBS was better than the groups supplemented with l-carnitine. There was no difference regarding embryo lipid accumulation. The results indicated that it is possible to reduce the FBS concentration to 5% in in vitro maturation medium for production of bubaline embryos, and supplementation with 5 mM l-carnitine does not increase embryo production.	
Palavras-Chave: 	Desenvolvimento embrionário; Soro fetal bovino.	
Thesagro: 	Búfalo; Lipídio.	
Thesaurus Nal: 	Buffaloes; Lipid metabolism.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Amazônia Oriental (CPATU)	
Exemplares: 	CPATU - (56696-1) - UPC - AP - DD -  -  -  - DIS
CNPGL - (25158-1) - UPC - AP - DD -  -  -  - DIS