Ak, Kemal2022-04-142022-04-142003-07Nur, Z. vd. (2003). “Effect of different thawing procedures on the quality of bull semen”. Revue De Medecine Veterinaire, 154(7), 487-490.0035-1555http://hdl.handle.net/11452/25768The objective of this study was to evaluate effect of different thawing procedure to Hypo-Osmotic Swelling Test (HOST), motility and morphology of bull semen. Straw (0.25 ml) frozen semen from 4 Holstein bulls was used in this study. Post-thaw motility, morphology and hypo-osmotic swelling test (HOST) were carried out at 37degreesC for 30 sec, 50degreesC for 15 sec and 70degreesC for 5 sec. According to these protocols motility, defected acrosome, other morphological defects, total morphological defects, and swollen tail spermatozoa (HOST) values were 56.6 %, 56.7 %, 59.8 %; 3.7 %, 2.6 1.9 %; 10.7 %, 8.8 %, 5.6 %; 14.4 %, 11.5 %, 7.5 %; 37.1 %, 37.4 39.3 % respectively. Thawing protocol has affected all sperm characteristics (P < 0.05) except HOST. There was a high correlation between HOST values and motility (P < 0.01) but no correlation was observed between HOST and acrosome defects, other morphological defects and total morphological defects.eninfo:eu-repo/semantics/closedAccessVeterinary sciencesAnimaliaBos taurusBullFrozen semenThawing regimeMembrane integrityMembrane functional integritySperm membraneAcrosomal integrityBovine spermatozoaHypoosmotic testRam spermatozoaFrozenTemperaturesViabilityMotilityArticle0001847746000062-s2.0-00425708034874901547Veterinary sciencesExtender; Semen; Semen ExtendersAcrosomeAnimal cellAnimal experimentArticleCattleCell structureControlled studyCorrelation analysisMaleNonhumanSemen abnormalitySpermSpermatozoon motilitySpermatozoon tailThawing