author(s)
Manoj Kumar Yadav, Gyanesh Kumar, Atul Saxena, Vikas Sachan, Anuj Kumar, Dilip Kumar Swain, Brijesh Kumar Yadav and Jitendra Agrawal

abstract
The present investigation was under taken on four Hariana bulls to study the effect of cryopreservation using Soya-milk extender. A total of 28 collections from four bulls (seven collections per bull) were utilized for the study. After initial evaluation, each semen sample was diluted in two different extenders viz. Tris egg yolk extender which acted as control and Soya-milk extender as experimental. Various sperm parameters were studied at post dilution, post equilibration and post-thaw stages. There was significant difference found for The progressive motility, live sperm percentage, Host Percenatage. Intact acrosomes was significantly higher for Tris egg yolk extender at post dilution, equilibration and post-thaw stages. In conclusion Tris egg yolk extender found to be superior than soyamilk extender.