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Journal : Jurnal Kedokteran Hewan

INFLUENCES OF INCUBATION TIME AND SUCROSE CONCENTRATION ON MICE (Mus musculus L.) OOCYTE VIABILITY FOR ENUCLEATING PROCEDURE Kaiin, Ekayanti Mulyawati; Gunawan, Muhammad; Madihah, Madihah; Nafisah, Ghina
Jurnal Kedokteran Hewan Vol 12, No 3 (2018): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v12i3.10896

Abstract

This study aimed to find out the optimum incubation time to complete mouse oocyte maturation at Metaphase II (MII) stage and determine the optimum sucrose concentration enabling to induce nuclear swelling for visualization that is important for enucleating process at the initial procedure of somatic cell nuclear transfer (SCNT). In this current study, mice were used as animal model. Completely randomized design was arranged, consists of 2 trials with 4 treatments and 7 replications. In the first trial, the oocytes were cultured at 0-2, 4-6, 8-10, and 12-14 h in 5% CO2 incubator at 37 C. Second, the MII oocytes obtained from previous trial were cultured in M199 medium containing different concentrations of sucrose (0, 1.5, 3, and 6%). The parameters measured were the oocyte viability at various stages, i.e germinal vesicle (GV), metaphase I (MI), anaphase/telophase I (A/T I), and metaphase II (MII), and the viability of swollen nuclear oocytes using Hoechst/PI staining. The results showed that the optimum incubation time required by oocytes to reach MII stage was 12-14 h with a percentage of 57.1412.67%, while the optimum sucrose concentration for nuclear swelling was found at 3% with a percentage of 1000.00%. Our findings provided preliminary results related to the maturation process of the mouse oocyte nucleus, which is meaningful for the initial procedure of SCNT.
PERKEMBANGAN EMBRIO SAPI SETELAH FERTILISASI MENGGUNAKAN METODE INTRACYTOPLASMIC SPERM INJECTION (ICSI) DAN AKTIVASI DENGAN STRONTIUM Gunawan, Muhammad; Fahrudin, Mokhamad; Boediono, Arief
Jurnal Kedokteran Hewan Vol 8, No 2 (2014): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v8i2.2651

Abstract

Penelitian ini bertujuan mengetahui pengaruh kombinasi intracytoplasmic sperm injection (ICSI) dan aktivasi dengan strontium untuk mengetahui perkembangan pronukleus dan perkembangan embrio sampai tahap blastosis. Kombinasi ICSI dan strontium 20 mM meningkatkan perkembangan pronukleus 2-PN mencapai 43,59%. Hasil perkembangan embrio pada perlakuan kombinasi ICSI dan strontium 20 mM mencapai tingkat perkembangan 2-4 sel (50,5%), 8-16 sel (43,73%), dan blastosis (15,63%). Kesimpulan dari hasil penelitian ini adalah kombinasi ICSI dengan aktivasi strontium 20 mM mampu menghasilkan perkembangan in vitro embrio sapi yang lebih baik.