| Comparative Study on Development of Mouse Embryos in Three Commercial Media and Hatching Rates of Mouse Embryos with/without Pronase. |
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Jeong Heon Lee, Hee Jeong Go, Geu Jeong Chae, Ki Suk Lee, Jong Duk Kim |
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Department of Obstetrics and Gynecology, Chonbuk National University Hospital, Jeonju, Korea. |
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| Abstract |
OBJECTIVE
The purpose of this present study was to compare mouse embryo development in 3 commercial media and hatching competence of mouse embryo with or without enzymatic treatment. METHODS: Collected 375 mouse embryos were divided into three groups, and then cultured in IVF-20 (G2), Medicult IVF (M3), P-1 (blastocyst M), respectively. Three day mouse morulae were cultured in G2 media treated with pronase. The results were analyzed using Chi-square test, and considered statistically significant when p<0.01. RESULTS: The developmental rate of 2 cell mouse embryo after 72 hours was highest in IVF-20 (G2) among conventional 3 media. The hatching rate of mouse morulae was low when clultured in G2 media without pronase during 48 hours. However, it was higher when cultured in media treated with l mg/ml, 2.5 mg/ml, 5 mg/ml pronase, respectively. CONCLUSIONS: Using good media and digestion of zona pellucida with enzymatic treatment improve development and hatching rate of embryo. Therefore, implantation and pregnancy rate could be improved. |
| Key Words:
Mouse; Media; Pronase |
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