Applying the nanobiotechnological methods for optimize the in vitro cultivation technology for cows oocytes

  • S. I. Kovtun
  • A. B. Zyuzyun
  • O. V. Shcherbak
  • P. A. Trotskiy
DOI: https://doi.org/10.7124/FEEO.v22.958

Abstract

Aim. Investigated effect nanomaterial of highly dispersed ultra fine silica (UFS) by carbohydrate – sucrose (UFS/sucrose) on the effectiveness of meiotic maturation cows oocytes in vitro. Methods. The fresh and frozen – thawed cow oocyte-cumulus complex (OCC) was divided into four groups: three experimental in which the cultivation was carried out in a medium containing of 0, 1; 0, 01 and 0,001 % UFS/sucrose and control without adding nanomaterial. Results. It was concluded that the addition of UFS/sucrose in 0.001 % concentration is effective for elevation level of oocytes maturation and provides reception of 76,8% oocytes that induced the metaphase II of meiosis. Adding carbohydrate – sucrose (UFS/sucrose) in 0.001 % concentration to the culture medium frozen – thawed cow generative cells, make positive effect on in vitro fertilization and provide embryos quantity enhancement to 33.3 %. Conclusions. Addition of UFS/sucrose in 0.001 % concentration to the culture medium have increase effect and promote level in vitro maturation of cows oocytes rising to 76.8 %. Usage of UFS/sucrose in 0.001 % concentration as part of in vitro culture medium for cows oocyte-cumulus complex conduce rising quantity of cattle embryos to 33.3 % after in vitro fecundation frozen – thawed and maturation oocytes.

Keywords: oocytes, in vitro culture, embryos, nanomaterial, ultra fine silica (UFS).

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