J. Madsen

ORCID: 0000-0002-3463-0583
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Research Areas
  • Ruminant Nutrition and Digestive Physiology
  • Genetic and phenotypic traits in livestock
  • Effects of Environmental Stressors on Livestock
  • Animal Nutrition and Physiology
  • Odor and Emission Control Technologies
  • Meat and Animal Product Quality
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Reproductive Physiology in Livestock
  • Enzyme Catalysis and Immobilization
  • Fluorine in Organic Chemistry
  • Computational Drug Discovery Methods
  • Atmospheric and Environmental Gas Dynamics
  • Protein Hydrolysis and Bioactive Peptides
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Agroforestry and silvopastoral systems
  • Agriculture and Farm Safety
  • Stress Responses and Cortisol
  • Livestock Farming and Management
  • Agriculture Sustainability and Environmental Impact
  • Rabbits: Nutrition, Reproduction, Health
  • Cancer Research and Treatment
  • Radical Photochemical Reactions
  • Nephrotoxicity and Medicinal Plants
  • Thallium and Germanium Studies

Technical University of Denmark
1978-2024

Massachusetts Institute of Technology
2024

University of Copenhagen
1975-2018

Frederiksberg Hospital
2014

Copenhagen University Hospital
2010-2011

Rigshospitalet
2010

Royal Agricultural University
1994

The plasticizer di(2-ethylhexyl) phthalate (DEHP) is widely used in building materials. DEHP identified as the major exposure dwellings. We provide evidence that inhalation to aerosols adsorbed particulate matter important, or more than vapor phase exposure. considered be significant due its low clearance and extensive penetration into pulmonary region. capable of creating high local concentrations airways at deposition site with subsequent effects. proposed mechanism effect states...

10.1289/ehp.97105972 article EN public-domain Environmental Health Perspectives 1997-09-01

Individual methane (CH(4)) production was recorded repeatedly on 93 dairy cows during milking in an automatic system (AMS), with the aim of estimating individual cow differences CH(4) production. Methane and CO(2) were measured a portable air sampler analyzer unit based Fourier transform infrared (FTIR) detection. The 50 Holsteins 43 Jerseys from mixed parities at all stages lactation (mean=156 d milk). Breath captured by FTIR inlet nozzle, which placed front cow's head each 2 AMS as...

10.3168/jds.2011-4544 article EN cc-by-nc-nd Journal of Dairy Science 2012-01-29

Formal knowledge about traditional free-range chicken production in tropical countries is increasing but still limited. However, it appears from literature studied connection with these studies, that management, and thus performance, general comparable different affected by similar factors. Further, poultry has shown to be a very important income generating activity, predominantly run women. On the basis of three studies (A, B C), paper describes local communal area Zimbabwe highlights...

10.1079/wps2oo416 article EN 2004-06-01

Two concentrates (MELK and VEM) with two different carbohydrate compositions were supplemented during milking in an Automatic Milking System (AMS). The objectives of this study to estimate the effect on CH4 emission from dairy cows investigate precision CO2-method when measuring AMS for length time. Holstein (n=36) used mean body weight 660 kg (SD=75.13) average milk production 31.7 (SD=8.98), mixed parity lactation. Cows allocated groups (n=18). After adaptation period (period 1), each...

10.1016/j.livsci.2014.03.004 article EN cc-by-nc-nd Livestock Science 2014-03-20

The claimed low production of CH(4) by kangaroos and marsupials in general has been questioned because a lack data. extent their is interest both from the point view discussing meat as basis for developing methods to reduce ruminants. In present experiment, 8 red-necked wallabies (Macropus rufogriseus) was measured which 4 were fed 2 different diets an open-circuit respiration chamber. These results compared with newly developed, inexpensive, simple method that does not influence behavior...

10.2527/jas.2011-4011 article EN Journal of Animal Science 2012-03-09

Abstract In vitro transaminase catalyzed asymmetric synthesis is not a new phenomenon in the biocatalytic toolbox. Our group published review on process consideration for these reactions 2011, which metrics and unfavorable reaction equilibrium was deduced to be main bottlenecks at time. Now, decade later, this has been solved by different methods presented review, with development of enzymatic cascades one solutions. Today, bottleneck downstream processing, due complexity reactions, ketone...

10.1002/cctc.202300560 article EN cc-by ChemCatChem 2023-05-22

Abstract Raman spectroscopy has been used to measure the concentration of a pharmaceutically relevant model amine intermediate for positive allosteric modulators nicotinic acetylcholine receptor in ω‐transaminase‐catalyzed conversion. A based on one‐dimensional convolutional neural network was developed translate raw data augmented spectra directly into substrate concentrations, with which conversion from ketone by ω‐transaminase could be determined over time. The showed very good predictive...

10.1002/btpr.3444 article EN cc-by Biotechnology Progress 2024-03-27

10.1016/s0377-8401(97)81622-7 article EN Animal Feed Science and Technology 1997-11-01

The objectives of this study were to investigate the individual variation, repeatability and correlation methane (CH4) production from dairy cows measured during 2 different years. A total 21 with an average BW 619±14.2 kg milk 29.1±6.5 kg/day (mean±s.d.) used in 1st year. During 2nd year, same 640±8.0 33.4±6.0 (mean±s.d.). housed a loose housing system fitted automatic milking (AMS). mixed ration was fed ad libitum both In addition, they offered concentrate AMS based on their daily yield....

10.1017/s1751731115000646 article EN cc-by-nc-nd animal 2015-01-01

10.3891/acta.chem.scand.20-2156 article EN Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry 1966-01-01

One hundred and forty four bulls comprising 48 animals of each breed, i.e. purebred Ankole (ANK) its crossbreds with Boran (AXB) Friesian (AXF) were assigned to three feeding systems (FS) evaluate their performance for improved beef production. The bulls, averaging 191 ± 9.6 kg live weight 18 months age, arranged in a completely randomized design 3 X factorial treatment arrangement. comprised: T1 (Grazing alone), T2 + concentrate) T3 (feedlot finishing maize stover plus 60% concentrate fedad...

10.4314/sajas.v39i1.61161 article EN South African Journal of Animal Science 2010-10-21
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