اثر الكتروليت ها و Ph روي خصوصيت حركتي اسپرم كپور دريايي (Cyprinus carpio)

Survey of effects of different concentrations of electrolytes and pH on characterization of sperm motility in wild carp (Cyprinus carpio)

Effects of pH, Na, K, Ca2+ and Mg2+ ions on characterization of sperm motility (duration of motility and percentage of motility) of wild carp (C. carpio) were investigated. After determination of optimum pH, its interaction effect with Na, K, Ca2+ and Mg2+ was stud ied. Maximum motility (duration of motility and percentage of motility) was observed at pH=8.5. Effects of different treatments of Nacl on sperm motility was significantly different (P<0.05). Maximum motility was observed at 50mM of Nacl. Effects of different treatments of Kcl and Cacl2 on sperm motility were not significantly different (P>0.05) while that of the Mgcl2 was significantly different (P<0.05). Maximum motility was observed at 20mM of Mgck but the percentage of motility was not significantly different (P>0.05). In general, it is concluded that movement of spermatozoa of wild carp is influenced by high concentration of ions