Abstract
Various packaging systems have been used for deep freezing of semen. In this study, feasibility of using hard gelatin capsules was established. Of the four types of capsules developed and tested, polymer-treated capsules were found to be suitable for the purpose, and were therefore used subsequently. French medium (0.5 ml) straws were used for control. Five semen samples from each of 12 bulls were processed and included for study. Semen was frozen by fast-freezing. Parameters studied after thawing of semen were comparable for the two methods. Upon analysis, the percentages of progressive motile spermatozoa, live spermatozoa and morphologically abnormal spermatozoa obtained for semen frozen in hard gelatin capsules and French medium straws were found to be nonsignificant. The percentage of intact acrosomes was found to be significantly higher (P < 0.05) for semen frozen - thawed in straws as compared to semen in capsules.
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