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The goal of the present study was to investigate whether this dual use of stallions influences the animals\u00b4 stress levels and\/or the quality of their ejaculates. For this purpose, 18 stallions were grouped into two categories: breeding stallions with (BSC\u00a0=\u00a0breeding stallion competition), and breeding stallions without secondary use in competitions (BS\u00a0=\u00a0breeding stallion). Two ejaculates were collected at a one\u2010week interval and analysed with an extended spectrum of spermatological methods. Furthermore, saliva, as well as seminal plasma samples were taken, and the concentration of cortisol therein was determined. Additionally, dehydroepiandrosterone (DHEA) and the cortisol\/DHEA ratio were analysed and calculated for seminal plasma. After statistical analysis of the correlations and interdependences between the two groups, the results showed that the BSC group had significantly higher saliva cortisol levels (<jats:italic>p<\/jats:italic>\u00a0=\u2009.027) and tendentially higher DHEA concentrations in their seminal plasma (<jats:italic>p<\/jats:italic>\u00a0=\u2009.056). No difference between BS and BSC could be found in regard to the sperm quality parameters and the cortisol concentration in seminal plasma samples. It can be concluded that while active participation in competitions represents a stress factor, the dual use of stallions in breeding programs and sports competitions is possible without negative effects on their sperm quality.<\/jats:p>","DOI":"10.1111\/rda.14337","type":"journal-article","created":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T15:51:43Z","timestamp":1678204303000},"page":"691-698","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Dual use of breeding stallions is possible without affecting the sperm quality"],"prefix":"10.1111","volume":"58","author":[{"given":"Britta","family":"Hensel","sequence":"first","affiliation":[{"name":"Institute for Reproduction of Farm Animals Sch\u00f6now  Bernau Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrike","family":"Jakop","sequence":"additional","affiliation":[{"name":"Institute for Reproduction of Farm Animals Sch\u00f6now  Bernau Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marion","family":"Schmicke","sequence":"additional","affiliation":[{"name":"Department of Veterinary Endocrinology and Laboratory Diagnostics University of Veterinary Medicine Hannover  Hannover Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Filip","family":"Schr\u00f6ter","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School  Bernau Germany"},{"name":"Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane Potsdam University  Neuruppin Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markus","family":"Jung","sequence":"additional","affiliation":[{"name":"Institute for Reproduction of Farm Animals Sch\u00f6now  Bernau Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7932-9412","authenticated-orcid":false,"given":"Martin","family":"Schulze","sequence":"additional","affiliation":[{"name":"Institute for Reproduction of Farm Animals Sch\u00f6now  Bernau Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,3,16]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jevs.2012.06.011"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.domaniend.2015.01.003"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jveb.2012.05.002"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0272.1990.tb01966.x"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.yhbeh.2006.11.004"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.2042-3306.2006.tb05552.x"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.3390\/ani10091486"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jevs.2021.103773"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2015.02.015"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/0093-691X(86)90136-6"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/rda.13487"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.psyneuen.2015.01.017"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apjr.2016.10.012"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiochem.2009.04.011"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1080\/10253890701288935"},{"key":"e_1_2_9_17_1","first-page":"1","article-title":"Chronic stress and the HPA axis","volume":"9","author":"Guilliams T. 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