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48702

Impact of Antioxidant Supplementation to Maturation Medium on In Vitro Maturation of Rabbit Oocytes Collected from Cryopreserved Ovaries

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Last updated: 04 Jan 2025

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Abstract

The aim of the present study was to evaluate the effect of adding two types of antioxidants, namely vitamin E (VE) or glutathione reduced (GSH) on in vitro maturation of New Zealand white (NZW) rabbit oocytes recovered from ovaries exposed to vitrification solution or vitrification as compared to fresh ovaries. A total of 36 non-parous NZW rabbit does, ranging 4.5-5 months of age and 2.25-2.55 kg LBW, were used in this study. Oocytes were recovered from ovaries exposed to vitrification solution, vitrified ovaries and fresh ovaries. Oocytes were in vitro matured in TCM-199 medium supplemented with 0, 200 µM VE or 200 µM GSH in CO2 incubator (5% CO2) at 37.5°C and high humidity for 18 h. Results show that maturation rate in term of percentage of oocytes reached MII stage was the highest (P<0.05) for oocytes recovered from fresh ovaries, moderate for those recovered from exposed ovaries and the lowest for oocytes recovered from vitrified ovaries (60.19, 37.16 and 29.05%, respectively). This trend was associated with an opposite trend in percentage of degenerated oocytes (7.88, 13.40 and 18.09%, respectively). Regardless cryopreservation method of rabbit ovary, the effect of both types of antioxidant (VE and GSH) supplementation on the proportion of maturation rate of rabbit oocytes is revealed that he percentage of oocytes reached MII stage was higher (P<0.01) for oocytes matured by antioxidant than by control medium. The percentage of matured oocytes was higher (50.66%) for oocytes matured by GSH than VE (43.96%) versus the lowest percentage of control oocytes at MII stage (31.77%). However, oocytes at other stages was significantly (P<0.05) decreased for oocytes matured by GSH as compared to control, but those matured by VE did not significantly differ from that in GSH and control oocytes. Analysis of variance revealed that the effect of interaction between oocyte preservation and antioxidant supplementation was not significant on percentage of oocyte at different stages after IVM. Maturation rate of fresh, exposed or vitrified oocytes increased when they were in vitro matured in medium supplemented with antioxidant as compared to un-supplemented medium, being higher with GSH than VE.  In conclusion, based on the foregoing results, oocytes recovered from ovaries exposed to vitrification solution or vitrified showed lower maturation rate than those recovered from fresh ovaries.

DOI

10.21608/jappmu.2016.48702

Keywords

Rabbit, Ovary, Vitrification, in vitro maturation, antioxidant

Authors

First Name

A.

Last Name

Mehrez

MiddleName

Z.

Affiliation

Animal Prod. Dept., Faculty of Agric., Mansoura Univ.

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Orcid

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First Name

Sh.

Last Name

Shamiah

MiddleName

M.

Affiliation

Anim. Prod. Res. Inst., Ministry of Agric.

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City

-

Orcid

-

First Name

Rania

Last Name

Ali

MiddleName

R.

Affiliation

Animal Prod. Dept., Faculty of Agric., Mansoura Univ.

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-

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-

Orcid

-

Volume

7

Article Issue

6

Related Issue

7566

Issue Date

2016-06-01

Receive Date

2019-09-21

Publish Date

2016-06-01

Page Start

203

Page End

208

Print ISSN

2090-3642

Online ISSN

2090-3723

Link

https://jappmu.journals.ekb.eg/article_48702.html

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https://jappmu.journals.ekb.eg/service?article_code=48702

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2

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Original Article

Type Code

876

Publication Type

Journal

Publication Title

Journal of Animal and Poultry Production

Publication Link

https://jappmu.journals.ekb.eg/

MainTitle

Impact of Antioxidant Supplementation to Maturation Medium on In Vitro Maturation of Rabbit Oocytes Collected from Cryopreserved Ovaries

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Article

Created At

22 Jan 2023