Efektifitas Penambahan Insulin dalam Media Maturasi dan atau Media Kultur pada Tingkat Maturasi Oosit dan Perkembangan Awal Embrio Sapi secara In Vitro

Abstract

This study was aimed to determine the effect of insulin supplementation in maturation and/or culture medium on nuclear maturation rate and the early bovine embryo development in vitro. Oocytes were collected and matured in maturation media without (IVM I-) or with (IVM I+) 10 ug/µL insulin at incubator 5% CO2 and the temperature of 39 °C, for early embryonic development evaluation, oocytes were divided into 4 groups, without the supplementation of insulin to the maturation medium and culture (IVM I-/IVC I-), insulin supplementation only the maturation medium (IVM I+/IVC I-), insulin supplementation only in the culture medium (IVM I-/IVC I+), and the combination of insulin supplementation to the maturation medium and culture (IVM I+/IVC I+). The result showed that supplementation of insulin to the maturation medium increased number nuclear maturation was higher 87.7% (P<0.05) compared to treatment without supplementation of insulin (70.1%). Cleavage rate in treatment IVM was higher IVM I-/IVC I- (55.8%), IVM I+/IVC I- (64.1%), IVM I-/IVC I+ (59.9%) (P<0.05). Result of the other were showed that early bovine embryo on day-4 cultured (IVC) reached 16 cell on treatment IVM I-/IVC I+(31,9%) and IVM I+/IVC I+ (27,1%) were higher compared to treatment IVM I-/IVC I-(2.9%) and IVM I+/IVC I- (2.5%) (P<0.05). In conclusion, supplementation of insulin to maturation medium and culture medium can increase nuclear maturation rate and improved early embryo cleavage rate.

Keywords

• embryo
• insulin
• culture
• maturation
• bovine oocytes