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Effects of Survivability of Frozen Porcine Embryos by Different Concentrations and Exposed Times of Cytochalasin-B before Vitrification  

안미현 (단국대학교 생명자원과학대학 동물자원과학과)
김인덕 (단국대학교 생명자원과학대학 동물자원과학)
석호봉 (단국대학교 생명자원과학대학 동물자원과학과)
Publication Information
Journal of Embryo Transfer / v.19, no.1, 2004 , pp. 35-42 More about this Journal
Abstract
The purpose of this study was to evaluate the effects of Cytochalasin B treatment on the survivability The different concentration and exposed times of CB of porcine embryos frozen by vitrification were observed. The results were summarized as follows ; 1. The survivability rates of the porcine embryos treated CB(60.5%) were significantly higher than non-treated(32.8%)(p<0.1). However the recovered with normal morphology rates(84.2%) were no significantly different than non-treated(81.9%). 2. We observed by different concentration of CB treatment, the group of CB treated with 7.5 $\mu\textrm{g}$/$m\ell$ were significantly showed a higher of normal morphology(44/45; 98%) and viability rate(33/45;73%) than other groups(morphology: 65∼70%, viability: 15∼74%)(p<0.05). While the control was lower as 70% of morphology and 38% of viability. 3. We examined exposed time of in-vitro CB treated embryos, the group of more than 20 minutes exposed were significantly were observed a higher rates of normal morphology and viability(p<0.05). And the group of 13 minutes, 14,000 rpm centrifuged(64%) were significantly higher than non-centrifuged(36%). Survivability of porcine embryos were improved in CB treated group. It suggested that 7.5 $\mu\textrm{g}$/$m\ell$ concentration of CB treatment, 20 minutes exposed times and 13 minutes, 14000 rpm centrifuged prior to vitrification improve normal morphology and survivability rates.
Keywords
cytochalasin-B(CB); concentration; exposed times; porcine embryos; centrifuged; In-vitro culture;
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