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Thirty\u2010four ejaculates from 24 bulls of various breeds were examined. There were fewer abnormal heads, detached heads, coiled tails and proximal cytoplasmic droplets\/pseudodroplets in the thawed semen than in the raw semen, there was no change in the number of bent tails, but the number of distal cytoplasmic droplets\/pseudodroplets increased. There were no significant differences in morphology between ejaculates which passed or failed the osmotic resistance test after thawing, but failed batches tended to have more distal cytoplasmic droplets\/pseudodroplets.<\/jats:p>","DOI":"10.1136\/vr.152.25.765","type":"journal-article","created":{"date-parts":[[2010,10,8]],"date-time":"2010-10-08T13:44:05Z","timestamp":1286545445000},"page":"765-767","source":"Crossref","is-referenced-by-count":5,"title":["Assessment of the morphology of frozenthawed bull sperm in relation to its cryopreservation for artificial insemination"],"prefix":"10.1002","volume":"152","author":[{"given":"S.","family":"Revell","sequence":"first","affiliation":[{"name":"Genus Freezing Unit Llanrhydd Ruthin Denbighshire LL15 2UP"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2003,6,21]]},"reference":[{"key":"e_1_2_5_2_1","first-page":"457","article-title":"Investigations on the semen of fertile and sterile bulls (part 1)","volume":"95","author":"ANDERSON J.","year":"1939","journal-title":"Veterinary Journal"},{"key":"e_1_2_5_3_1","unstructured":"BLOM E.(1977)Sperm morphology with reference to bull infertility.Proceedings of the First All\u2010India Symposium on Animal Reproduction Ludhiana. pp61\u201381"},{"key":"e_1_2_5_4_1","unstructured":"CHRISTENSEN P. 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