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Effects of BSA and Fetal Bovine Serum in Culture Medium on Development of Rat Embryos
Rat 1-cell embryos, recovered from naturally mated females, were cultured in a chemically defined medium (mR1ECM) or in mR1ECM supplemented with BSA (4 mg/ml; mR1ECM-BSA) or fetal bovine serum (FBS; 10%, v:v; mR1ECM-FBS) instead of polyvinylalcohol. There was no difference in percentages of embryos...
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Published in: | Journal of Reproduction and Development 2003, Vol.49(3), pp.235-242 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Rat 1-cell embryos, recovered from naturally mated females, were cultured in a chemically defined medium (mR1ECM) or in mR1ECM supplemented with BSA (4 mg/ml; mR1ECM-BSA) or fetal bovine serum (FBS; 10%, v:v; mR1ECM-FBS) instead of polyvinylalcohol. There was no difference in percentages of embryos that developed to the 2-cell to blastocyst stages between mR1ECM and mR1ECM-BSA, but in mR1ECM-FBS, no development beyond the 2-cell stage was observed. When embryos were transferred to mR1ECM-FBS from mR1ECM after 24 to 64 h of culture, development of embryos to and beyond the 4-cell stage was inhibited. However, when transferred after 80 h of culture, more embryos developed to blastocysts and hatching or hatched blastocysts than in embryos cultured in mR1ECM. When 8-cell embryos and early morulae obtained after 72 and 80 h of culture in mR1ECM, respectively, were cultured in mR1ECM-FBS, a higher proportion of early morulae developed to the blastocyst stage than did 8-cell embryos. When morulae obtained after culture in mR1ECM or mR1ECM-BSA were transferred to recipient females, there was no difference in proportions of fetuses obtained. However, a higher proportion of blastocysts cultured in mR1ECM-FBS developed to fetuses compared with those obtained in mR1ECM. These results indicate that BSA has neither deleterious nor beneficial effects on development of rat 1-cell embryos. In contrast, FBS has deleterious effects on early cleavage of embryos but it promotes more rapid development of morulae to blastocysts, resulting in better quality blastocysts. |
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ISSN: | 0916-8818 1348-4400 |
DOI: | 10.1262/jrd.49.235 |