CRYOPRESERVATION OF SPERM CELLS OF LOCAL CHICKEN (GALLUS GALLUS DOMESTICUS) IN LIQUID NITROGEN
DOI:
https://doi.org/10.51791/njap.vi.6684Keywords:
cryoprotectant, local chicken, sperm motility, sperm concentrationAbstract
This study evaluated the most effective cryoprotectant to be used for spermatozoa of local chicken Gallus
gallus domesticus in liquid nitrogen. Semen was collected from local chicken by means of abdominal massaging. The sperm motility and concentration of the. fresh, and liquid nitrogen cryopreserved semen were evaluated microscopically for maximum of three weeks. The cryoprotectant used were Dimethyl sulfoxide and Phosphate buffered saline (DP); Dimethyl sulfoxide and Ginzburg fish ringer (DF); Glycerol and Phosphate buffered saline (GP); Glycerol and Ginzburg fish ringer (GF); Egg yolk and Phosphate buffered saline (EY+P); Egg yolk and Ginzburg fish ringer (EY+F); Quail Egg yolk and Phosphate buffered saline (QEY+P); Quail Egg yolk and Ginzburg fish ringer (QEY+F). Results obtained showed that the motility and concentration of freshly collected sperm recorded 70% and 1.353 * I 0° spermatozoa/ml respectively, while there were decrease in sperm motility and concentration over time, but some cryoprotectants suchas QEY+P and EY+P performed best. Hence, these cryoprotectants are recommended for long term cryopreservation.