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Study on the Developmental Rate of In Vitro Cultured Cats Oocytes Recovered from Ovaries Collected at Different Stages of the Reproductive Cycle  

박상훈 (충남대학교 수의과대학)
이명헌 (수의과학검역원)
김무강 (충남대학교 수의과대학)
김상근 (충남대학교 수의과대학)
Publication Information
Journal of Embryo Transfer / v.18, no.2, 2003 , pp. 157-161 More about this Journal
Abstract
The study was carried out to investigate the effects of morphology, reproductive cycle, incubation time and activation of oocytes in vitro maturation of cats oocytes and development of IVM/IVF embryos. The results were summarized as follows : 1. The fertilization and developmental rate of fresh and salts-stored oocytes with and whithout cumulus cells were 65.7%, 17.1% and 28.6%, 8.6% and 57.1%, 13.3%, 23.3%, 3.3%, respectively. The rate of oocytes with cumulus cells(13.3%∼65.7%) was higher than that of denuded oocytes(3.3%∼28.6%). 2. The fertilization and developmental rate of oocytes recovered from ovaries collected at different stages of the reproductive cycle were 68.9%, 44.4%, 48.9% and 17.8%, 8.9%, 12.8%, respectively. 3. The fertilization and developmental rate of oocytes in vitro cultured at different time of incubation(24, 36 and 48 h) were 66.7%, 46.7%, 48.9% and 17.8%, 11.1%, 8.5%, respectively. respectively. The rate of oocytes incubated 24 h(66.7%) was higher than that oocytes incubated 36 and 48 h(46.7%∼48.9%). 4. The fertilization and developmental rate of oocytes treated activation and non-activation oocytes were 57.4%, 31.4% and 22.9%, 11.4%, respectively. The rate of oocytes treated activation was higher than that oocyte treat non-activation.
Keywords
cats; reproductive cycle; incubation time; activation of oocytes; developmental rate;
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