IN VITRO ACROSOME REACTION : ITS PERTINENCE IN ASSESSING FERTILITY OF CRYOPRESERVED SEMEN

Article Id: ARCC2370 | Page : 201-204
Citation :- IN VITRO ACROSOME REACTION : ITS PERTINENCE IN ASSESSING FERTILITY OF CRYOPRESERVED SEMEN.Indian Journal Of Animal Research.2008.(42):201-204
C.S. Mukhopadhyay, Archana Verma, B.K. Joshi, Avtar Singh, A.K. Chakravarty and P. P. Dubey
Address : Animal Genetics and Breeding Division, National Dairy Research Institute, Karnal-132001, India

Abstract

Cryopreserved spermatozoa are prone to cryoinjury which induces membrane damage and
render them incapable to undergo acrosome reaction (AR). In the present study, cryopreserved
semen samples obtained from 30 Karan Fries bulls were subjected to in vitro AR. The AR scores
were correlated with the fertility rates (conception rates) following A.I. with frozen semen frozen
semen. The AR scores and gross seminal parameters showed significant correlations except for
semen volume. A prediction equation (R2 = 37.3) was constructed from AR scores and was used to
predict the conception rates of donor bulls. The predicted and observed conception rates did not
show any significant difference for chi square test. The study indicates that in vitro acrosome
reaction test may be complemented with the conventional semen analyses tests prior to using
cryopreserved semen samples for AI purpose.

Keywords

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