Jan Værum Nørgaard
Aarhus University
82 Papers
375 Citations
Jan Værum Nørgaard is an academic researcher from Aarhus University. The author has contributed to research in topics: Chemistry & Biology. The author has an hindex of 16, co-authored 71 publications. Previous affiliations of Jan Værum Nørgaard include University of Copenhagen.
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Papers
Cell Turnover and Activity in Mammary Tissue During Lactation and the Dry Period in Dairy Cows
Martin Tang Sørensen,Jan Værum Nørgaard,Peter Kappel Theil,Mogens Vestergaard,Kristen Sejrsen +4 more
TL;DR: M mammary cell proliferation is substantial in a period near parturition but otherwise low, and apoptosis is elevated at dry off and in early lactation, and the activity of selected enzymes central for milk synthesis is probably not limiting for milk production.
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Mammary cell turnover and enzyme activity in dairy cows: effects of milking frequency and diet energy density.
TL;DR: It is concluded that nutrient restriction affects mammary cell turnover and possible enzyme activity, and that tuning of negative feedback loops in response to filling of the gland may be the dominating effects of changes in milking frequency.
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Emissions of sulfur-containing odorants, ammonia, and methane from pig slurry: effects of dietary methionine and benzoic acid.
Jørgen Eriksen,Anders Peter S. Adamsen,Jan Værum Nørgaard,Hanne Poulsen,Bent Borg Jensen,Søren O. Petersen +5 more
TL;DR: In conclusion, addition of 2% benzoic acid to pig diets effectively reduced ammonia volatilization, but interactions with dietary S may increase odor problems.
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Cellular mechanisms in regulating mammary cell turnover during lactation and dry period in dairy cows.
TL;DR: The gene expression pattern of the TGF-beta receptors indicates a role in regulating apoptosis in early lactation, and Signal transducer and activator of transcription 5 gene expression was high in the periparturient period, which suggests a role for STAT5 in regulation of mammary cell proliferation and differentiation in dairy cows.
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Absorption and metabolism of benzoic acid in growing pigs.
Niels Bastian Kristensen,Jan Værum Nørgaard,S. Wamberg,M Engbaek,J.A. Fernández,Helle D Zacho,Hanne Poulsen +6 more
TL;DR: It is concluded that the small impact of BA supplementation on systemic acid-base status was caused by a protracted BA absorption and efficient hepatic extraction and glycine conjugation in combination with efficient renal clearance of HA, which prevented major BA and HA accumulation in body fluids.
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