Browsing Brage INN by Author "Narud, Birgitte"
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Differences in sperm functionality and intracellular metabolites in Norwegian Red bulls of contrasting fertility
Narud, Birgitte; Klinkenberg, Geir; Khezri, Abdolrahman; Zeremichael, Teklu Tewoldebrhan; Stenseth, Else-Berit; Nordborg, Anna; Haukaas, Tonje Husby; Morrell, Jane; Heringstad, Bjørg; Myromslien, Frøydis Deinboll; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2020-07-22)In the dairy breeding industry, prediction of bull fertility in artificial insemination (AI) is important for efficient and economically sustainable production. However, it is challenging to identify bulls with superior ... -
DNA methylation patterns vary in boar sperm cells with different levels of DNA fragmentation
Narud, Birgitte; Stenseth, Else-Berit; Johannisson, Anders; Myromslien, Frøydis Deinboll; Gaustad, Ann Helen; Wilson, Robert Charles; Lyle, Robert; Morrell, Jane; Kommisrud, Elisabeth; Ahmad, Rafi (Peer reviewed; Journal article, 2019) -
Optimization of a sperm-oviduct binding assay mimicking in vivo conditions. Adoption of sperm separation methods and protocols for analysing sperm motility and intracellular Ca2+ level
Narud, Birgitte (Master thesis, 2014)English: An in vitro model that mimics the interactions between spermatozoa and oviductal epithelial cells can be used to increase the knowledge about the function of the oviduct and the formation of a sperm reservoir in ... -
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, 2022)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 ... -
Sperm chromatin integrity and DNA methylation in Norwegian Red bulls of contrasting fertility
Narud, Birgitte; Khezri, Abdolrahman; Zeremichael, Teklu Tewoldebrhan; Stenseth, Else-Berit; Heringstad, Bjørg; Johannisson, Anders; Morrell, Jane; Collas, Philippe; Myromslien, Frøydis Deinboll; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2021)n this study, the complexity of chromatin integrity was investigated in frozen-thawed semen samples from 37 sires with contrasting fertility, expressed as 56-day non-return rates (NR56). Protamine deficiency, thiols, and ... -
Sperm DNA Hypomethylation Proximal to Reproduction Pathway Genes in Maturing Elite Norwegian Red Bulls
Khezri, Abdolrahman; Narud, Birgitte; Stenseth, Else-Berit; Zeremichael, Teklu Tewoldebrhan; Myromslien, Frøydis Deinboll; Robert C., Wilson; Ahmad, Rafi; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2020)Genomic selection in modern farming demands sufficient semen production in young bulls. Factors affecting semen quality and production capacity in young bulls are not well understood; DNA methylation, a complicated phenomenon ...