Background: Infertility problem affects 20-30% of young couples. One of the known causes of spermatogenesis disorder is chemotherapy in patients with cancer which its side effect may last up to the end of the life. The aim of the present study is to investigate the effect of GnRH on viability of ovarian follicles defect produced by anticancer drug. Materials and Methods: In the present study ad...

The lion-bull iconography during the Achaemenian period of ancient Persia has generated different theories of astronomicaland seasonal events besides the suggestions that it could be the symbol of the time cycle of the day, with lion representingthe sun and bull the night. However, the present paper draws the reader’s attention to the hitherto unexplored angle ofzoology to understand physiognom...

The principal objective of this study was to derive an improved procedure for cryopreservation of swamp buffalo (Bubalus bubalis) spermatozoa. Experiments were conducted to determine effects of cooling rate, intermediate plunge temperature and warming rate on motility and acrosome integrity of spermatozoa. Spermatozoa were obtained from three bulls (three ejaculates/bull) and were subjected to ...

The technique of differential agglutination of red cells, introduced by Ashby ( 1 ), has been widely used to measure the life span of red cells following transfusion. The technique of differential hemolysis was investigated as a possible alternative to this method in an attempt to separate more easily the surviving donor cells from those of the recipient. Differential hemolysis was first used b...

The present study was designed to compare fertilization rates following oocyte exposure to spermatozoa from different buffalo bulls, using three sperm preparation methods i.e. percoll density gradient, swim-up (modified Ca free Tyrode’s medium and TALP medium) and sodium citrate washing prior to co-incubation with oocytes. Buffalo oocytes were aspirated from ovarian follicles within 1.5 to 2 ho...

Damage occurring to spermatozoa during cryopreservation results in a loss of motile cells and cells that are functionally normal, compared with fresh sperm samples. Treating bull sperm with cholesterol-loaded cyclodextrins (CLC) before cryopreservation results in increased sperm cryosurvival. However, in previous studies, CLC were always added to sperm samples that had been highly diluted. The ...