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EFG와 IGF-I의 첨가배양이 돼지 미성숙 난포란의 체외성숙과 배발달에 미치는 영향
백준종,한만희,박병권,서길응,이규승 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.1
The present study was carried out to examine the effect of EGF and IGF-I in vitro maturation (IVM) of porcine oocytes and development of porcine IVM/IVF embryos. The results were summarized as follows : 1. The rates of nuclear maturation, penetrated oocytes, pronuclear formation, polyspermic oocytes and mean numbers of the penetrated sperm were not different in NCSU-23 maturation medium with 0, 1. 5 and 10 ng/ml EGF and IGF-I (P>0.05). 2. The rates of blastocyst formation at day 7 after in vitro fertilization in 0, 1, 5 and 10 ng/ml EGF groups were 11.2±1.5%, 15.0±8.3%, 16.8±2.8% and 21.4±2.0%, also 0, 1, 5 and 10 ng/ml IGF- I groups were 11.2±1.5%, 15.0±8.3%. 16.8±2.8% and 21.4±2.0%, respectively. In the total cells case, EGF groups were 22.8±3.7, 25.7±5.5, 26.0±4.2 and 35.1±4.7, also IGF-I groups were 21.5±3.7, 25.2±2.8, 26.2±2.9 and 33.2±3.6, respectively. Both 10 ng/ml EGF group and 10 ng/ml IGF-I group were significantly higher than those of other treatment groups (P<0.05). 3. The rates of blastocyst formation at day 7 in the NCSU23 culture medium of porcine IVF-produced embryos with 0, 1, 5, and 10 ng/ml EGF groups were 14.0±1.7%, 16.2±1.4%, 16.9±1.2% and 23.1±1.6%, also 0, 1, 5, 10 ng/ml IGF-I groups were 13.6±1.7, 15.7±4.5. 16.0±0.2 and 25.0±0.8, respectively. And in the total cells case, EGF grups were 21.8±2.9, 25.2+2.8, 39.7±2.7 and 46.2±3.6, also IGF-I groups were 20.7±2.9, 26.2±2.9, 24.6±2.4 and 46.1±3.5, respectively. Both 10 ng/ml EGF group and 10 ng/ml IGF-I group were significantly higher than those of any other treatment groups (P<0.05). In conclusion, these results suggested that the addition of 10 ng/ml EGF and IGF-I were effective on the blastocyst formation and total cells of blastocysts.
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