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In recent years, progress has been achieved in the production of pig embryos through IVM and IVF techniques. Cytoplasmic maturation of oocytes has been improved by modifications to IVM procedures. However, the historical problem of polyspermic penetration still remains a major issue to be solved. Recent studies indicate that the type of IVF medium and certain modifications to that medium can reduce...
Decreasing sodium chloride concentration in maturation medium for porcine oocytes increased the quality of the matured oocytes (Funahashi et al., Biol. Reprod. 51:633-639, 1994). In the same study, a high relationship of oocyte glutathione content with incidence of male pronuclear formation was observed. In the present study, the effects of organic osmolytes (sorbitol, taurine and inositol) in maturation...
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