A comparative study of Sephadex, glass wool and Percoll separation techniques on sperm quality and IVF results for cryopreserved bovine semen.
10.4142/jvs.2009.10.3.249
- Author:
Hae Lee LEE
1
;
Sue Hee KIM
;
Dong Beom JI
;
Yong Jun KIM
Author Information
1. Laboratory of Veterinary Obstetrics and Theriogenology, College of Veterinary Medicine, Chonbuk National University, Jeonju 561-756, Korea. yjk@chonbuk.ac.kr
- Publication Type:Original Article ; Comparative Study
- Keywords:
glass wool;
in-vitro fertilization (IVF);
Percoll;
Sephadex
- MeSH:
Animals;
Cattle;
Cryopreservation/methods/*veterinary;
Cytological Techniques/methods/*veterinary;
*DEAE-Dextran;
Female;
Fertilization in Vitro/methods/*veterinary;
*Glass;
Male;
Semen Preservation/methods/*veterinary;
Spermatozoa/*physiology;
Zygote/cytology
- From:Journal of Veterinary Science
2009;10(3):249-255
- CountryRepublic of Korea
- Language:English
-
Abstract:
The aim of this study was to compare the effects of spermatozoa separation techniques on sperm quality and in-vitro fertilization (IVF) results for cryopreserved bovine semen. Sephadex, glass wool and Percoll gradient separation techniques were used for sperm separation and sperm motility, morphology and membrane integrity were evaluated before and after separation. Also, cleavage and blastocyst developmental rate were investigated after IVF with sperm recovered by each separation technique. The motility of samples obtained by the three separation techniques were greater compared to the control samples (p < 0.05). The percentage of spermatozoa with intact plasma-membrane integrity, identified by 6-carboxyfluoresceindiacetate/propidium iodide fluorescent staining and the hypo-osmotic swelling test, was highest in the glass wool filtration samples (p < 0.05). The cleavage and blastocyst rate of total oocytes produced from glass wool filtration samples were also higher than the control and Sephadex filtration samples (p < 0.05), but were not significantly different from Percoll separation samples. However, a significantly greater number of cleaved embryos produced by glass wool filtration developed to blastocyst stage than those produced by Percoll separation (p < 0.05). These results indicate that spermatozoa with good quality can be achieved by these three separation techniques and can be used for bovine IVF. In particular, it suggests that glass wool filtration would be the most effective method of the three for improving sperm quality and embryo production for cryopreserved bovine spermatozoa.
