Indian Journal of Animal Research
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Cysteamine and b-mercaptoethanol supplementation improves the in vitro embryo development in buffaloes (Bubalus bubalis)
Submitted01-07-2014|
Accepted23-02-2016|
First Online 02-04-2016|
The objective of the present experiment was to investigate the effect of cysteamine and b-mercaptoethanol supplementation on in -vitro maturation, cleavage of oocytes and development of embryo in buffalo (Bubalus bubalis). Oocytes were aspirated from abattoir ovarian follicles of 3-10 mm diameter followed by maturation in the media in vitro containing cysteamine/b-mercaptoethanol (treatment) and without antioxidant (control). Matured oocytes were co-incubated with sperm (approx.1×106/ml) of Murrah bull in mSOF medium using heparin (10 µg/ml). After 22 h of oocyte-sperm incubation, fertilized oocytes were stripped of cumulus cells and cultured in mSOF medium for 8 days to study embryo development. The oocyte maturation rate improved significantly (P<0.05) following addition of 50 or 100 µM of cysteamine and 10, 50 and 100 µM of b- mercaptoethanol (ME), respectively as compared to control. The cleavage rate was found to be significantly (P<0.05) higher at 50 and 100 µM of cysteamine and at all concentrations of b-mercaptoethanol as compared to control and development of embryos to morula stage was significantly (P<0.05) improved with 50 µM cysteamine/ b-mercaptoethanol.
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