Korean Journal of Veterinary Research 1991;31(2):229-234.
Developmental potential of bisected-aggregated mouse embryos after freezing
Sang-tae Shin1, Choong-ho Jo2
1College of Veterinary Medicine, Chungnam National University
2College of Veterinary Medicine, Seoul National University
동결보존한 마우스 이분집합배의 생존에 관한 연구
신상태1, 조충호2
1충남대학교 수의과대학
2서울대학교 수의과대학
Abstract
Thc chimeric morulae were produced following aggregation of the half embryos which were microsurgically bisected at 8-cell and early morula stage. Different phenotypic embryos were obtained by mating ICR female mice with ICR or CBA male mice. The early morula stage was thc desirable stage for the aggregation of mouse embryos after bisection. The post-thawed survival rates of bisected-aggregated embryos that developed into normal blastocyst after conventional freezing in DMSO and ethylene glycol were 30.5 and 32.896, respectively. One offspring was produced by transferring the 67 frozen-thawed bisected-aggregated embryos.
Key Words: bisected-aggregated, frozen-thawed, chimeric, embryos


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