Zobrazeno 1 - 10
of 1 884
pro vyhledávání: '"M. Johansen"'
Autor:
M. H Kjeldsen, M. Johansen, M.R. Weisbjerg, A.L.F. Hellwing, A. Bannink, S. Colombini, L. Crompton, J. Dijkstra, M. Eugène, A. Guinguina, A.N. Hristov, P. Huhtanen, A. Jonker, M. Kreuzer, B. Kuhla, C. Martin, P.J. Moate, P. Niu, N. Peiren, C. Reynolds, S.R.O. Williams, P. Lund
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 9, Pp 6771-6784 (2024)
ABSTRACT: Automated measurements of the ratio of concentrations of methane and carbon dioxide, [CH4]:[CO2], in breath from individual animals (the so-called “sniffer technique”) and estimated CO2 production can be used to estimate CH4 production,
Externí odkaz:
https://doaj.org/article/b677e8fd9f844de79d163cdb6a2a3c41
Publikováno v:
Animal, Vol 18, Iss 6, Pp 101178- (2024)
Measuring feed intake accurately is crucial to determine feed efficiency and for genetic selection. A system using three-dimensional (3D) cameras and deep learning algorithms can measure the volume of feed intake in dairy cows, but for now, the syste
Externí odkaz:
https://doaj.org/article/cb95443ab08b4891aa0c0a305570f7e2
Autor:
Farhad Parnian-Khajehdizaj, S.J. Noel, M. Johansen, M.R. Weisbjerg, A.L.F. Hellwing, O. Højberg, M.B. Hall, P. Lund
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 6, Pp 4072-4091 (2023)
ABSTRACT: This experiment investigated the variation in enteric methane production and associated gas exchange parameters, nutrient digestibility, rumen fermentation, and rumen microbiome when a range of silages based on different forage types (grass
Externí odkaz:
https://doaj.org/article/a27e0f50437447ee8ed04c2df69a44f9
Autor:
N.P. Hansen, S.K. Jensen, M. Johansen, A.L.F. Hellwing, M. Ambye-Jensen, M. Larsen, M.R. Weisbjerg
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 2, Pp 937-953 (2023)
ABSTRACT: The aim of the study was to investigate the effects of substituting silage of chopped grass with pulp silage of grass fractionated once or twice in a biorefinery using a screw press on fiber kinetics, protein value, and production of CH4 in
Externí odkaz:
https://doaj.org/article/5aee228f94f5449b931cee216a123bc8
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 11, Pp 8806-8823 (2022)
ABSTRACT: The objective of this study was to investigate the effects of heat treatment (toasting) and particle size alterations (grinding; rolling) on nutrient utilization, ruminal fermentation, and supply of metabolizable protein (MP), and to study
Externí odkaz:
https://doaj.org/article/de0cfc76f9c24518b0044007609c14e5
Autor:
N.P. Hansen, T. Kristensen, M. Johansen, L. Wiking, N.A. Poulsen, A.L.F. Hellwing, L. Foldager, S.K. Jensen, L.B. Larsen, M.R. Weisbjerg
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 10, Pp 8036-8053 (2022)
ABSTRACT: The objective of the study was to quantify the effects on dry matter intake (DMI), nutrient digestibility, gas exchange, milk production, and milk quality in dairy cows fed fresh grass harvested at different maturity stages. Sixteen Danish
Externí odkaz:
https://doaj.org/article/9b34f1f13efd42b49fc1cc7db1f0f2fb
Autor:
A. Bougouin, A. Hristov, J. Dijkstra, M.J. Aguerre, S. Ahvenjärvi, C. Arndt, A. Bannink, A.R. Bayat, C. Benchaar, T. Boland, W.E. Brown, L.A. Crompton, F. Dehareng, I. Dufrasne, M. Eugène, E. Froidmont, S. van Gastelen, P.C. Garnsworthy, A. Halmemies-Beauchet-Filleau, S. Herremans, P. Huhtanen, M. Johansen, A. Kidane, M. Kreuzer, B. Kuhla, F. Lessire, P. Lund, E.M.K. Minnée, C. Muñoz, M. Niu, P. Nozière, D. Pacheco, E. Prestløkken, C.K. Reynolds, A. Schwarm, J.W. Spek, M. Terranova, A. Vanhatalo, M.A. Wattiaux, M.R. Weisbjerg, D.R. Yáñez-Ruiz, Z. Yu, E. Kebreab
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 9, Pp 7462-7481 (2022)
ABSTRACT: Manure nitrogen (N) from cattle contributes to nitrous oxide and ammonia emissions and nitrate leaching. Measurement of manure N outputs on dairy farms is laborious, expensive, and impractical at large scales; therefore, models are needed t
Externí odkaz:
https://doaj.org/article/c17cdb1b42b84dd1bf9e566a6fa24802
Autor:
M. Correa-Luna, M. Johansen, P. Noziere, C. Chantelauze, S.M. Nasrollahi, P. Lund, M. Larsen, A.R. Bayat, L.A. Crompton, C.K. Reynolds, E. Froidmont, N. Edouard, R. Dewhurst, L. Bahloul, C. Martin, G. Cantalapiedra-Hijar
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 6, Pp 5004-5023 (2022)
ABSTRACT: Estimating the efficiency of N utilization for milk production (MNE) of individual cows at a large scale is difficult, particularly because of the cost of measuring feed intake. Nitrogen isotopic discrimination (Δ15N) between the animal (m
Externí odkaz:
https://doaj.org/article/1565d9fe4404427c939d66a9ab7b9107
Autor:
C. Ostle, K. Paxman, C. A. Graves, M. Arnold, L. F. Artigas, A. Atkinson, A. Aubert, M. Baptie, B. Bear, J. Bedford, M. Best, E. Bresnan, R. Brittain, D. Broughton, A. Budria, K. Cook, M. Devlin, G. Graham, N. Halliday, P. Hélaouët, M. Johansen, D. G. Johns, D. Lear, M. Machairopoulou, A. McKinney, A. Mellor, A. Milligan, S. Pitois, I. Rombouts, C. Scherer, P. Tett, C. Widdicombe, A. McQuatters-Gollop
Publikováno v:
Earth System Science Data, Vol 13, Pp 5617-5642 (2021)
Plankton form the base of the marine food web and are sensitive indicators of environmental change. Plankton time series are therefore an essential part of monitoring progress towards global biodiversity goals, such as the Convention on Biological Di
Externí odkaz:
https://doaj.org/article/0326f3c23d834523906bffbc9c8d0580
Autor:
A. McQuatters-Gollop, L. Guérin, N.L. Arroyo, A. Aubert, L.F. Artigas, J. Bedford, E. Corcoran, V. Dierschke, S.A.M. Elliott, S.C.V. Geelhoed, A. Gilles, J.M. González-Irusta, J. Haelters, M. Johansen, F. Le Loc'h, C.P. Lynam, N. Niquil, B. Meakins, I. Mitchell, B. Padegimas, R. Pesch, I. Preciado, I. Rombouts, G. Safi, P. Schmitt, U. Schückel, A. Serrano, P. Stebbing, A. De la Torriente, C. Vina-Herbon
Publikováno v:
Ecological Indicators, Vol 141, Iss , Pp 109148- (2022)
The Northeast Atlantic, a highly productive maritime area, has been exposed to a wide range of direct human pressures, such as fishing, shipping, coastal development, pollution, and non-indigenous species (NIS) introductions, in addition to anthropog
Externí odkaz:
https://doaj.org/article/193d5bae9a424d50938d6e85eabfe75a