Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa

The composition of the extender in which semen is diluted before freezing plays a major role in successful cryopreservation of spermatozoa. This study was carried out to identify the suitable buffer for cryopreservation of buffalo semen. Sixteen split pooled ejaculates from two buffalo bulls possess...

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Main Authors: Ali Rastegarnia, V Shafepour
Format: Article
Language:fas
Published: Islamic Azad University, Tabriz Branch 2007-08-01
Series:Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī
Subjects:
Online Access:http://jvcp.iaut.ac.ir/article_518625_52c6b52033d9fc3f91b6202ad2f5d8dc.pdf
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author Ali Rastegarnia
V Shafepour
author_facet Ali Rastegarnia
V Shafepour
author_sort Ali Rastegarnia
collection DOAJ
description The composition of the extender in which semen is diluted before freezing plays a major role in successful cryopreservation of spermatozoa. This study was carried out to identify the suitable buffer for cryopreservation of buffalo semen. Sixteen split pooled ejaculates from two buffalo bulls possessing more than 70% visual sperm motility, were diluted at 370c either in lactose, skim milk or Tris extenders. The diluted semen was cooled to 40c within 2 hours, equilibrated at 40c for 4-6 hours following the addition of glycerol, filled in 0.5 ml French straws and frozen in a programmable cell freezer before plunging into liquid nitrogen. Semen was thawed at 370c for 30 seconds after 48 hours of storage inside liquid nitrogen. Post thaw visual sperm motility, plasma membrane integrity and acrosome morphology of each semen sample were assessed by warm plate microscopy at 370c, hypo-osmotic swelling test (HOST) and giemsa staining, respectively. Analysis of variance revelated that percentage of post thaw visual sperm motility (Mean± standard deviation) tended to be higher in Tris (50±3.6) than skim milk (44.5±2.5) and lower in lactose (24.4±10.5) extenders (P
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spelling doaj.art-0132fdb916524668bdd4e7d3760d7ac82022-12-22T02:48:14ZfasIslamic Azad University, Tabriz BranchĀsīb/shināsī-i Darmāngāhī-i Dāmpizishkī2322-47462476-69842007-08-0112 (2) تابستان7988518625Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoaAli Rastegarnia0V Shafepour1Department of Clinical Sciences, Faculty of Veterinary Medicine, Islamic Azad University of Urmia, Urmia, IranBuffalo Breeding and Extension Training Center, Urmia, Urmia, IranThe composition of the extender in which semen is diluted before freezing plays a major role in successful cryopreservation of spermatozoa. This study was carried out to identify the suitable buffer for cryopreservation of buffalo semen. Sixteen split pooled ejaculates from two buffalo bulls possessing more than 70% visual sperm motility, were diluted at 370c either in lactose, skim milk or Tris extenders. The diluted semen was cooled to 40c within 2 hours, equilibrated at 40c for 4-6 hours following the addition of glycerol, filled in 0.5 ml French straws and frozen in a programmable cell freezer before plunging into liquid nitrogen. Semen was thawed at 370c for 30 seconds after 48 hours of storage inside liquid nitrogen. Post thaw visual sperm motility, plasma membrane integrity and acrosome morphology of each semen sample were assessed by warm plate microscopy at 370c, hypo-osmotic swelling test (HOST) and giemsa staining, respectively. Analysis of variance revelated that percentage of post thaw visual sperm motility (Mean± standard deviation) tended to be higher in Tris (50±3.6) than skim milk (44.5±2.5) and lower in lactose (24.4±10.5) extenders (Phttp://jvcp.iaut.ac.ir/article_518625_52c6b52033d9fc3f91b6202ad2f5d8dc.pdfExtenderSpermatozoaBuffalo
spellingShingle Ali Rastegarnia
V Shafepour
Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī
Extender
Spermatozoa
Buffalo
title Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
title_full Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
title_fullStr Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
title_full_unstemmed Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
title_short Effect of lactose, skim milk and Tris diluents on frozen buffalo spermatozoa
title_sort effect of lactose skim milk and tris diluents on frozen buffalo spermatozoa
topic Extender
Spermatozoa
Buffalo
url http://jvcp.iaut.ac.ir/article_518625_52c6b52033d9fc3f91b6202ad2f5d8dc.pdf
work_keys_str_mv AT alirastegarnia effectoflactoseskimmilkandtrisdiluentsonfrozenbuffalospermatozoa
AT vshafepour effectoflactoseskimmilkandtrisdiluentsonfrozenbuffalospermatozoa