Blar i Brage INN på forfatter "Bremer, Joanna"
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Associations between insulin-like factor 3, scrotal circumference and semen characteristics in young Norwegian Red bulls
Bremer, Joanna; Heringstad, Bjørg; Morrell, Jane M.; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2023)With the integration of genomic selection in the cattle artificial insemination (AI) industry, bulls are selected for their semen production capacity and fertility at a younger age than previously. Norwegian Red bull calves ... -
Deep learning–based automated measurements of the scrotal circumference of Norwegian Red bulls from 3D images
Bremer, Joanna; Maj, Michal; Nordbø, Øyvind; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2023)The main aim of this study was to create an automated method for the measurement of the scrotal circumference (SC) of Norwegian Red bulls using 3D images of the scrotum based on convolutional neural networks. The study ... -
Novel interpretation of sperm stress test and morphology for maturity assessment of young Norwegian Red bulls
Bremer, Joanna; Heringstad, Bjørg; Morrell, Jane M.; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2023)The use of genomic selection significantly reduces the age of dairy bulls entering semen production compared to progeny testing. The study aimed to identify early indicators that could be used for screening bulls during ... -
Sperm quality, semen production, and fertility in young Norwegian Red bulls
Bremer, Joanna (Ph.d.-avhandling i anvendt økologi og bioteknologi;34, Doctoral thesis, 2023)Ved bruk av genomisk seleksjon i storfeavlen blir eliteokser selektert basert på deres estimerte genomiske avlsverdier i stedet for ved avkomsgransking. Oksene er derfor yngre når de blir tatt i bruk i sædproduksjon enn ...