Effect of 7-dehydrocholesterol and cholesterol-loaded cyclodextrins on bull sperm motility during short term storage [7-dehidrokolesterol ve kolesterol ile doyurulmuş siklodekstrinlerin kisa süreli saklama süresince boğa spermasinin motilitesine etkisi]

The study was conducted to determine the effect of 7-dehydrocholesterol loaded cyclodextrin (7-dhclc) and cholesterol-loaded cyclodextrin (clc) on changes of bull sperm motility during short term storage (+4°c). collected ejaculates were pooled and divided into 7 groups,as following one control (c); three 7-dhclc and the other three clc concentrations. diluted semen samples were transferred and stored at +4°c and sperm motility was analysed in determined intervals during three days storage period with computer aided sperm analyse (casa) system. motility decreased in all groups; however,7-dhclc and clc groups motility decreased in the next two days gradually. but,clc 1.5 mg/120x106 group were identified as the best groups for protecting motility in short time preservation. in conclusion,adding different rates of 7-dhclc and clc to semen extender preserved motility for three days in bull semen stored at +4°c. © 2017,veteriner fakultesi dergisi. all rights reserved.