1-1세부

연구성과 1핵심 1-1세부
[학술발표] ▶1년차◀ [국제] 16th international symposium on developmental biotechnology, MY Shin, Comparison of sperm fertility and developmental capacity of jeju black cattle embryos in vitro, 2016.10.28
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  • 작성일 2017-01-15 19:53:18
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Jeju Black Cattle (JBC) is an indigenous species of Korea and their mass production and industrialization are required for this high quality indigenous species. For production of elite JBC zygotes, selection of high quality sperm is necessary for in vitro fertilizatioin. In this study, we compared the sperm fertility and developmental capacity of IVF embryos using various JBC sperm (Bull A, B and C). The frozen semen was thawed and confirmed sperm viability and motility. In addition, frozen-thawed sperm was used for a chlorotetracycline(CTC) staining assay and in vitro fertilization. Sperm were classified into three staining patterns. The F pattern is indicative of uncapacitated sperm, the B pattern is indicative of capacitating and capacitated sperm and the AR pattern is indicative of acrosome-reacting sperm or acrosome-reacted sperm, respectively. Several kinds of JBC sperm was inseminated in 44 IVF drop contained 10 oocytes with sperm concentration of 1 × 106 cells/ml, and then 2 heparin and 2 PHE (20 µM penicillamine, 10 µM hypotaurine, 2 µM epinephrine) were added. The sperm viability and motility were higher in sperm 3 species (n=8). When we confirmed sperm capacitation, F pattern and B pattern rate were higher than AR pattern in sperm A group. After IVF, the rates of cleavage and blastocyst development were higher in sperm C group compared to other sperm group. However, the cell number of blastocyst was higher in sperm E group. These results demonstrate that the use of sperm C was effective in production of elite JBC IVF embryos. Additional experimental data are required for more accurate analysis.


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