Comparison of quality and freezability of water buffalo semen after washing or Sephadex filtration
1996
Goyal, R.L. | Tuli, R.K. | Georgie, G.C. | Chand, D.
Split aliquots of pooled buffalo semen samples were processed before freezing 1) by washing twice with Tris-citric acid buffer by centrifugation and re-suspension to the original volume in the same buffer, or 2) or by passage through a G-15 Sephadex column. The effect of these procedures on progressive motility, percentages of live spermatozoa, sperm abnormalities and intact acrosomes and release of glutamate oxaloacetate transaminase (GOT) into the medium were assessed after extension, after equilibration and after 18 to 24 h or 15 d of frozen storage. Prior to extension, gel filtration reduced sperm concentration and enhanced progressive motility, whereas washing produced little effect on these attributes. Except in the case of GOT release, which was significantly (P < 0.05) lower after the washing of semen (34.3 +/- 16.40) than the filtering of semen (45.7 +/- 12.35), the 2 procedures did not cause significant effects (P > 0.05). Damage to spermatozoa due to freeze-processing was also similar in the 2 treatments, and the extent of beneficial effect in improved motility and live spermatozoan numbers after thawing was also similar.
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