Coenzyme Q10 Supplementation Effects on In Vitro Maturation, Fertilization, and Early Embryonic Development in Pigs
DOI:
https://doi.org/10.18061/ojs.v119i2.6366Keywords:
Coenzyme Q10, in vitro fertilization, polyspermy, mitochondria, pigsAbstract
The objective of this study was to determine the reduction of polyspermic penetration, and increase of mitochondrial activity, in early pig embryonic development by supplementing different concentrations of coenzyme Q10 during oocyte maturation. Oocytes (n = 1,100) were supplemented during the last 24 h of maturation with 0 (control), 10, 50, or 100 μM of coenzyme Q10. After in vitro fertilization (IVF), embryos were evaluated for fertilization kinetics (penetration, polyspermic penetration, male pronuclear formation), and subsequent embryonic development and mitochondrial activity. Supplementation of 100 μM coenzyme Q10 was detrimental to the oocytes, as they had significantly lower (p < 0.05) fertilization kinetic and early embryonic development rates to the other treatment groups. There were no differences in fertilization kinetic and early embryonic development rates between the 0, 10 and 50 μM coenzyme Q10 treatment groups. Oocytes, matured in medium supplemented with 50 μM coenzyme Q10, ultimately developed into embryos with a significantly greater (p < 0.05) presence of intact mitochondrial membranes (observed at both 48 and 144 h post-IVF) compared to oocytes not supplemented with coenzyme Q10. In summary, supplementation of 100 μM coenzyme Q10 during oocyte maturation is detrimental, yet supplementation of 50 μM coenzyme Q10 leads to a higher occurrence of intact mitochondrial membranes in the in vitro produced pig embryos.
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