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KMID : 0900919870110020127
Korean journal of Animal Reproduction
1987 Volume.11 No. 2 p.127 ~ p.131
A Study on the Splitting Methods in Mouse and Bovine Embryos


Abstract
This study was carried out to obtain the basic information on splitting and culture of mouse and bovine embryos. Two-, four-, eight-, cell and morula mouse embryos were digested with pronase, splitted in vitro by micro-glass needel with hand, and bovine embryos were splitted by micromanipulator. The splitted embryos were cultured under 5% of CO2 gas in air at 37^{circ}C for 48-72 hours. The results obtained in this study were summarized as follows: 1. The mouse and cattle were superovulated by 5IU of PMS and HCG, and 2500IU of PMS and 25mg of PGF2alpha, respectively. The average number of embryos after superovulation were 32.5pm8.2 and 7.5pm3:1, respectively. 2. Out of total 122 embryos splitted, the successful splitting rate was 75.0%, 66.7%, 68.4% and 71.4% in 2-, 4-, 8- and morula embryos in mouse, respectively. There was no different splitting rate between mouse(71.4%) and bovine embryos(66.7%) in morula. 3. The successful culture rate of splitted embryos was 68.0% and 67.9% in mouse and bovine embryos, respectively.
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