Rezaei Topraggaleh T

[ 1 ] - P-137: Effect of Different Equilibration, Freezing and Thawing Rate on Cryopreserved Buffalo Spermatozoa Diluted inTris- Egg Yolk Extender

Background: Artificial insemination (AI) has been used for increasing genetic potential of animals in production while application of AI has been restricted in buffalo due to low freezing ability and fertility of frozen-thawed buffalo spermatozoa. So improvement in buffalo sperm cryopreservation may enhance the breeding programs of this valuable farm animal. Semen processing is one of the major...

[ 2 ] - P-138: Effect of Short Term Storage on Functional Parameters of Post-Thawed Buffalo Spermatozoa

Background: Detection of sperm parameters based on conventional methods, immediately after thawing, have been revealed sperm capacity to in vivo and in vitro fertilization. But this evaluation is not fully reliable because of long journey of sperm during female genital tract to reach the oocyte and fertilize it. Therefore, analyzing postthawed sperm parameters after incubation is more beneficia...

[ 3 ] - P-139: Ram Sperm Motility Following 48 Hours of Refrigeration: Evaluation of Different Extenders for The Preservation of Ram Semen in Liquid State

Background: The application of laparoscopic method for intrauterine insemination is limited in sheep industry by the high cost of equipment and low pregnancy rate of frozen-thawed spermatozoa. Both disadvantages could be decreased if chilled ram semen is transported to the farms and inseminated through cervix. Semen extender provides the requirements for sperm and affects its motility, viabilit...

[ 4 ] - P-113: Quality Improvement of Buffalo Frozen -Thawed Spermatozoa by Supplementation of Cysteine and Glutamine in Cryopreservation Extender

Background: Sperm cryopreservation has been associated with over production of reactive oxygen species (ROS). Buffalo spermatozoa are susceptible to ROS inducing damages due to insufficient level of cytoplsmic antioxidant along with high amount of poly unsaturated fatty acids composition in membrane structure. Therefore, appropriate antioxidant in buffalo cryopreservation extender would reduce ...