Consulta: subjectFacets:"Oocyte quality"
Registros recuperados: 3
Data/hora: 02/06/2024 02:39:59

Proteomic identification of quality factors for oocytes in the Pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Corporeau, Charlotte; Vanderplancke, Gwenaelle; Boulais, Myrina; Suquet, Marc; Quere, Claudie; Boudry, Pierre; Huvet, Arnaud; Madec, Stephanie.
We used a 2-DE proteomic approach to identify abundant proteins linked to oocyte quality in the Pacific oyster Crassostrea gigas, an economically important bivalve. Oocyte quality of 14 females was estimated by recording fertilisation and early developmental success until D-larval stage under controlled conditions. Proteins that were differentially expressed between females showing high or low oocyte quality were identified by nano-liquid chromatography tandem mass spectrometry. Twelve up-accumulated spots associated with low quality oocytes revealed 10 distinct proteins, including vitellogenin — breakdown products and metabolic enzymes. Eight up-accumulated spots from high quality oocytes revealed 6 distinct proteins, including chaperone molecules and...
Tipo: Text
Palavras-chave: Marine bivalves; Crassostrea gigas; Oocyte quality; Proteomics.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00098/20925/18534.pdf

Assessment of oocyte and trochophore quality in Pacific oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Boulais, Myrina; Corporeau, Charlotte; Huvet, Arnaud; Bernard, Ismael; Quere, Claudie; Quillien, Virgile; Fabioux, Caroline; Suquet, Marc.
Pacific oyster hatchery production remains highly variable, partially due to inconsistent gamete quality. However, little attention has been paid to oocyte quality in Pacific oyster compared to important vertebrate aquaculture species such as fishes. The aims of the present study were to identify criteria of oocyte and trochophore quality used as predictive tools for embryo developmental success at the D-larval stage. Twenty-six potential proxies of oocyte and trochophore quality were studied on 25 mature females, as determined using histology. Some morphological and biochemical characteristics of mature oocytes were described. Protein appeared to be the main constituent of fully mature Pacific oyster oocytes. Neutral lipids accounted for 61% of the total...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oocyte quality; Trochophore; Lipid; Gene expression; ATP.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00239/35010/33544.pdf

Oocyte aspiration and in vitro embryo production in Jersey cows with selenium-supplemented diet
Provedor de dados: 45
Autores: Moraes,G.V.; Azevedo,J.R.; Carneiro,T.C.; Cavalieri,F.L.B.; Mataveli,M.; Rossi,R.M.; Santos,T.C.
The effects of selenium (Se) in Jersey cows' diet on the aspiration of oocytes and production of embryos in vitro were studied. Groups with five Jersey cows received 3.2mg or 9.6mg Se daily, provided in the feed concentrate. Six follicular aspirations were carried out every 15 days, using only the last 5. The oocytes were classified, and standard procedures were carried out for maturation, fertilization and cultivation. The total number of oocytes (35.11±2.65 vs 23.10±2.16) and degree 1 oocytes (11.61±2.65 vs 4.75±0.97) were higher in the group that received 9.6mg Se and the quantity of naked oocytes (3.23±0.87 vs 6.22±1.18) was lower in this group. The aspirated oocytes from the cows treated with 9.6mg Se/day resulted in higher (P&lt;0.05) embryo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle dairy; Antioxidant; Glutathione peroxidase; In vitro fertilization; Oocyte quality.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400001