Semen quality parameters including metabolites, sperm production traits and fertility in young Norwegian Red AI bulls

Narud, Birgitte; Khezri, Abdolrahman; Nordborg, Anna; Klinkenberg, Geir; Zeremichael, Teklu Tewoldebrhan; Stenseth, Else-Berit; Heringstad, Bjørg; Kommisrud, Elisabeth; Myromslien, Frøydis Deinboll
Peer reviewed, Journal article
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https://hdl.handle.net/11250/3014158
Date
2022
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Livestock Science. 2022, 255 .   10.1016/j.livsci.2021.104803
Abstract
Genomic selection in cattle breeding has gradually allowed younger bulls to be recruited for semen production. In this study, sperm quality parameters, seminal plasma and sperm metabolites, semen production capacity and fertility in young Norwegian Red bulls were analysed. For in vitro analyses of sperm quality and metabolites, ejaculates were collected from the same 25 bulls at both 14 and 17 months of age. Semen production and fertility data were collected for all Norwegian Red bulls in production from December 2017 throughout 2019. Bull fertility was measured as 56 days non-return rate (NR56), for both age groups.
Journal
Livestock Science
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal