摘要
用自己现用现配的玻璃化溶液 (EFS4 0、EFS5 0和EDFS30、EDFS4 0 )对二步平衡后的牛体外培养的卵母细胞进行OPS(openpulledstraw)法冷冻保存研究。体外分别培养 6h或 2 2h的牛卵母细胞冷冻解冻后再经 18h或2h培养后 ,经体外受精 ,最高囊胚发育率分别达到 12 %和 17% ;经化学孤雌激活后 ,最高囊胚发育率分别达到2 2 %和 2 4 % ,与对照组 (33% )差异不显著 (P >0 .0 5 )。
Bovine oocytes cultured in vitro for 6 hours or 22 hours were cryopreserved in different vitrification solutions (EFS40, EFS50, EDFS30 or EDFS40) by the two-step method with OPS (open pulled straw). The best results were achieved by using EDFS30 to cryopreserve the oocytes either for in vitro fertilization or for chemical activation. The blastocyst rates were 12% and 17% in 6 hour and 22 hour cultures respectively following in vitro fertilization. If frozen-thawed oocytes were continued in culture up to 24 hours, and were activated by chemicals, the blastocyst rates were 22% and 24% in 6-hour and 22-hour groups respectively. There were no statistical differences between frozen and fresh oocytes (P >0.05).
出处
《中国农业科学》
CAS
CSCD
北大核心
2002年第6期700-704,T005,共6页
Scientia Agricultura Sinica
基金
国家"863"高科技研究资助项目 (部分内容 ) (Z2 1 0 1 0 1)
