{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T21:51:11Z","timestamp":1784584271698,"version":"3.55.0"},"reference-count":21,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2004,5,6]],"date-time":"2004-05-06T00:00:00Z","timestamp":1083801600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J of Andrology"],"published-print":{"date-parts":[[2004,6]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>The predictability of semen quality of mature sires from measurements at an early age is not well established. The aim of the present study was to determine age\u2010dependent changes in the quality of bull semen for artificial insemination (AI). Semen was collected and frozen from each of six Swedish Red and White (SRB) dairy AI bulls when they were 1 and 4\u2003years old. Three batches were randomly selected from each bull and age group. From each batch, semen was analysed immediately after thawing [post\u2010thaw (PT), control] as well as after washing\/resuspension (W) and after a swim\u2010up procedure (SU). The analyses comprised subjective and computerized (computer\u2010aided sperm analysis, CASA) measurements of motility as well as sperm concentration, morphology and membrane integrity. When semen was analysed, PT, overall sperm motility (CASA), concentration of motile spermatozoa and membrane integrity improved when sires were older. After SU, there was a similar improvement in membrane integrity and concentration of motile spermatozoa, but linear motility decreased. No significant differences between ages were recorded after W\u2010treatment. The above findings indicate that SU is not only superior to W\u2010treatment in differentiating semen quality among bulls but also reveals age\u2010dependent changes. Improved motility and membrane integrity suggest increased viability of spermatozoa at 4\u2003years of age in the SRB sires examined here.<\/jats:p>","DOI":"10.1111\/j.1365-2605.2004.00470.x","type":"journal-article","created":{"date-parts":[[2004,5,6]],"date-time":"2004-05-06T16:31:12Z","timestamp":1083861072000},"page":"166-171","source":"Crossref","is-referenced-by-count":22,"title":["Variations in quality of frozen\u2013thawed semen from Swedish Red and White AI sires at 1 and 4\u2003years of age"],"prefix":"10.1111","volume":"27","author":[{"given":"Triin","family":"Hallap","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margareta","family":"H\u00e5\u00e5rd","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00dclle","family":"Jaakma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Birgitta","family":"Larsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heriberto","family":"Rodriguez\u2010Martinez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2004,5,6]]},"reference":[{"key":"e_1_2_19_2_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod59.5.1037"},{"key":"e_1_2_19_3_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(76)84308-1"},{"key":"e_1_2_19_4_1","first-page":"518","article-title":"A study on the technique of hemocytometric determination of sperm motility and sperm concentration in bull semen","volume":"42","author":"Bane A.","year":"1952","journal-title":"Cornell Veterinarian"},{"key":"e_1_2_19_5_1","first-page":"20","article-title":"The effects of age on fertility, ejaculate parameters and testosterone, estradiol\u201017\u03b2 and luteinizing hormone concentration in breeding bulls (abstract)","volume":"3","author":"Br\u00fcckmann A.","year":"2000","journal-title":"Proceedings of 14th International Congress on Animal Reproduction"},{"key":"e_1_2_19_6_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(77)83832-0"},{"key":"e_1_2_19_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0093-691X(96)00022-2"},{"key":"e_1_2_19_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2003.11.017"},{"key":"e_1_2_19_9_1","doi-asserted-by":"publisher","DOI":"10.1006\/dbio.2002.0797"},{"key":"e_1_2_19_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0093-691X(99)00159-4"},{"key":"e_1_2_19_11_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(90)78919-9"},{"key":"e_1_2_19_12_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(98)75898-9"},{"key":"e_1_2_19_13_1","first-page":"243","article-title":"Sperm morphology in Estonian Holstein dairy bulls, factors affecting it and relation to fertility","author":"Padrik P.","year":"2002","journal-title":"Agraarteadus"},{"key":"e_1_2_19_14_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod38.5.1171"},{"key":"e_1_2_19_15_1","first-page":"1","article-title":"In vitro assessment of viability and fertilizing capacity of bull spermatozoa","volume":"43","author":"Rodriguez\u2010Martinez H.","year":"1997","journal-title":"Journal of Reproduction and Development"},{"key":"e_1_2_19_16_1","first-page":"99","article-title":"Studies on morphology of buffalo bull semen of different age groups","volume":"1","author":"Saeed A.","year":"1989","journal-title":"Buffalo Journal"},{"key":"e_1_2_19_17_1","volume-title":"SAS User's Guide","author":"SAS Institute Inc.","year":"1994"},{"key":"e_1_2_19_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0442.1991.tb01045.x"},{"key":"e_1_2_19_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/0378-4320(96)01498-4"},{"key":"e_1_2_19_20_1","first-page":"87","article-title":"Technique of collecting semen for laboratory examination with a review of several diseased bulls","volume":"10","author":"Williams W. W.","year":"1920","journal-title":"Cornell Veterinarian"},{"key":"e_1_2_19_21_1","first-page":"189","volume-title":"The Physiology of Reproduction","author":"Yanagimachi R.","year":"1994"},{"key":"e_1_2_19_22_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2605.1998.00114.x"}],"container-title":["International Journal of Andrology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1365-2605.2004.00470.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1365-2605.2004.00470.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,12]],"date-time":"2023-10-12T12:15:33Z","timestamp":1697112933000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1365-2605.2004.00470.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,5,6]]},"references-count":21,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2004,6]]}},"alternative-id":["10.1111\/j.1365-2605.2004.00470.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1365-2605.2004.00470.x","archive":["Portico"],"relation":{},"ISSN":["0105-6263","1365-2605"],"issn-type":[{"value":"0105-6263","type":"print"},{"value":"1365-2605","type":"electronic"}],"subject":[],"published":{"date-parts":[[2004,5,6]]}}}