Effect of fish oil addition to the skim milk-egg yolk extender on the quality of frozen-thawed bali bull spermatozoa[1] [Süt tozu-yumurta sarisi sulandiricisina balik yaği ilavesinin dondurulmuşçözdürülmüş bali boğa spermatozoonlarinin kalitesi üzerine etkisi]

This study was conducted to investigate the effect of fish oil addition to the semen extender on post-thaw quality of bali bull spermatozoa. fish oil was added at the doses of 0 (control),50,100,150 and 200 mg/100 ml to the skim milk-egg yolk extender. supplementation of fish oil at the dose of 100 mg/ml significantly (p<0.05) increased both live sperm rate and motility,but its dose of 200 mg/ml caused a significant (p<0.05) decrease in the live sperm rate when compared with the control group. a significant (p<0.05) increment was observed in abnormality rate of frozen-thawed spermatozoa in comparison with the control group when all doses of fish oil except 50 mg/100 ml were added. in conclusion,addition of 100 mg fish oil to 100 ml of skim milk-egg yolk extender could be beneficial for the improvement of the quality of bali bull spermatozoa after freeze-thawing. © 2017,veteriner fakultesi dergisi. all rights reserved.