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  4. Effect of different activators on development of activated in vitro matured caprine oocytes

Effect of different activators on development of activated in vitro matured caprine oocytes

Authors

Sharma J. R.
Agarwal, S.
Kharche, S. D.
Goel, A. K.
Jindal, S. K.
Agarwal, S. K.
Central Institute for Research on Goats [CIRG] ; , Physiology Reproduction and Shelter Management Division ;

Iran. J. Vet. Res. 2015; 16 (1): 42-46
Iranian Journal of Veterinary Research
Journal Country: Islamic Republic of Iran
P-ISSN: 1728-1997
E-ISSN: 2252-0589
Type of Publication: Journal Article
Category: Animals,
Type of Research: Experimental Studies
Keywords: In Vitro Oocyte Maturation Techniques
Broad Subjects: Health Systems, Oocytes ,Goats ,Ethanol ,Parthenogenesis ,Morula ,Blastocyst
Citation: J. R. Sharma ,S. Agarwal ,S. D. Kharche ,A. K. Goel ,S. K. Jindal ,S. K. Agarwal , Effect of different activators on development of activated in vitro matured caprine oocytes, Iran. J. Vet. Res. 2015; 16 (1): 42-46

Abstract English

This study was designed to compare the effectiveness of different activation treatments for activation of in vitro matured oocytes and their developmental potency in mCR [2] aa medium so as to obtain maximum number of embryos. A total of 1090 cumulus oocyte complexes [COC’s] were collected from 480 ovaries. In vitro matured oocytes were randomly divided into four groups. Group 1 in vitro matured oocytes [n=226] were exposed to 7% ethanol for 5 min followed by treatment with 2.0 mM DMAP for 4 h in mCR [2] aa medium. Group 2 in vitro matured oocytes [n=294] were exposed to 7% ethanol for 5 min followed by treatment with 10 micro g/ml CHX for 4 h in mCR [2] aa medium. Group 3 in vitro matured oocytes [n=325] were exposed to 7% ethanol for 5 min followed by treatment with 2.0 mM DMAP and 10 micro g/ml CHX for 4 h in mCR [2] aa medium. Group 4 in vitro matured oocytes [n=108] were cultured for 4 h without any chemical treatment in mCR [2] aa medium [control] . The cleavage rate in groups 1, 2, 3 and 4 was 54.42%, 44.55%, 51.69% and 0.00%, respectively. The percentage of morula and blastocyst production in group 1, group 2 and group 3 was 26.01%, 29.77% and 29.76% and 2.43%, 1.52% and 1.78%, respectively. These results suggest that the activation of in vitro matured oocytes by 7% ethanol for 5 min followed by treatment with 2.0 mM DMAP for 4 h in mCR [2] aa is most favorable for parthenogenetic caprine embryos production

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