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| Abograra, I.; Aulrich, K.; Barth, K.; Becker, M.; Berendonk, C.; Bormann, A.; Böhm, H.; Brinkmann, J.; Dittmann, L.; Drerup, C.; Haufe, H.; Harms, J.; Isselstein, J.; Klocke, D.; Klocke, P.; Knappstein, K.; Krömker, V.; Lange, G.; Leisen, E.; March, S.; Mersch, F.; Meyercordt, A.; Müller, J.; Müller, U.; Paduch, J.H.; Pries, M.; Rauch, P.; Ritter, S.; Sauerwein, H.; Schulz, F.; Schaub, D.; Schumacher, U.; Schuster, M.; Spiekers, H.; Südekum, K.H.; Sweers, W.; Tichter, A.; Volling, O.; Wendl, G.; Weiler, M.; Weiß, M.; Winckler, C.; Zinke, C.. |
| Im Mittelpunkt des Projektes stand die Stoffwechsel- und Eutergesundheit von ökologisch gehaltenen Milchkühen im prä- und peripartalen Zeitraum sowie in den ersten 100 Laktationstagen und deren Beeinflussung durch die Futter- und Nährstoffversorgung und die Haltungsumwelt im umfassenden Sinn. In einer bundesweiten Feldstudie auf 106 ökologisch wirtschaftenden Milchviehbetrieben erfolgten Erhebungen mit dem Ziel einer Risikomodellierung zu Stoffwechsel- und Eutererkrankungen. Vor diesem Hintergrund wurden die Produktionssysteme von der Pflanzenzusammensetzung im Grünland und im Ackerfutter über die Grobfutterproduktion, Futterqualität und Rationsgestaltung, Haltungsumwelt bis hin zur Tiergesundheit und Milchqualität analysiert, um hier einzelbetriebliche... |
| Tipo: Report |
Palavras-chave: Dairy cattle; Feeding and growth; Health and welfare. |
| Ano: 2011 |
URL: http://orgprints.org/25133/1/25133-07OE012-022-ti-barth-2011-milchviehgesundheit.pdf |
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| March, S.; Brinkmann, J.; Barth, K.; Drerup, C.; Isselstein, J.; Klocke, D.; Krömker, V.; Mersch, F.; Müller, J.; Rauch, P.; Schumacher, U.; Spiekers, H.; Tichter, A.; Volling, O.; Weiler, M.; Weiß, M.; Winckler, C.. |
| Kernziel des im Rahmen des Bundesprogramms Ökologischer Landbau initiierten Forschungsvorhabens „Gesundheit und Leistungsfähigkeit von Milchkühen im ökologischen Landbau interdisziplinär betrachtet“ (FKZ 07OE012 - 07OE022) ist - neben der Abschätzung des Risikos für Stoffwechselstörungen und Eutererkrankungen - die Entwicklung eines praxistauglichen, präventiv orientierten Tiergesundheitsmanagements für die Praxis der ökologischen Milchviehhaltung. Basierend auf einer Interventionsstudie auf 106 repräsentativ ausgewählten Milchviehbetrieben soll dieses Managementkonzept in einer zweijährigen Praxisphase validiert und auf seine Praxistauglichkeit überprüft werden. Als Grundlage für die Identifikation einzelbetrieblicher Interventionsmaßnahmen dienen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2011 |
URL: http://orgprints.org/17628/3/March_17628.pdf |
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| March, Solveig; Brinkmann, Jan; Müller, J.; Winckler, Christoph. |
| The effects of grassland management and grazing strategy on cow health in organic dairy farming in Germany have not yet been explored. On the basis of comprehensive data sets of 124 organic dairy farms generated within the Federal Organic Farming Scheme, the aims of this study were 1) to assess grassland management and pasture use, 2) to identify the grazing strategies and, 3) to investigate the effects of grazing on health and other welfare indicators of organic dairy cows in Germany. In this paper, we describe selected animal-based parameters for herd health and compare groups of farms with different grazing strategies. Farms using pasture especially for grazing had a lower lameness prevalence and less cows with dirty hind legs, but grazing strategy had... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/31848/1/Welchen%20Einfluss%20hat%20der%20Weidegang%20auf%20die%20Gesundheit.pdf |
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| Müller, J.; Wernecke, P.; Braune, H.; Diepenbrock, W.. |
| The requirements for modelling photosynthesis and related processes within the framework of a Functional-Structural Plant Model (FSPM; cf. Vos et al. this volume) are discussed. A combined local gas (carbon dioxide, water vapour) and radiant energy exchange model (GREM) is presented, that was specified to be embedded into an FSPM. The model accounts for the effect of organ nitrogen content (N) on gas exchange expressing certain key model parameters as functions of N. This approach enables the model also to account for the observed effects of growth conditions and organ development on gas exchange, since such effects could to a large part be ascribed to concurrent changes in N. The GREM was parameterized for leaf blades of barley (Hordeum vulgare L.)... |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1374 |
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| Müller, J.; Heindl, A.. |
| Drying is the most common method of medicinal plant preservation and, due to high investment and energy costs, drying is also a large expense in medicinal plant production. Drug quality and consequently earnings are significantly influenced by the drying regime. Conventionally, low drying temperatures between 30 and 50°C are recommended to protect sensitive active ingredients, but the decelerated drying process causes a low capacity of drying installations. Therefore, the objective of research in medicinal plant drying is to find the optimum drying temperature for various medicinal plant species in terms of quality and drying costs. Investigations on Salvia officinalis are presented as an example. Optimal drying temperature was 50°C, because quality... |
| Tipo: Conference proceedings |
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| Ano: 2006 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1236 |
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| Wernecke, P.; Müller, J.; Dornbusch, T.; Wernecke, A.; Diepenbrock, W.. |
| The paper presents an improved version of the Virtual Canopy model VICA (Wernecke et al. 2000), which is developed to establish a generic functional-structural plant model (FSPM; cf. Vos et al. this volume) specified for barley (Hordeum vulgare L.). The model core is formulated as a set of hierarchically structured objects. These objects are related to morphological and functional ‘plant units’ (organs). The following processes are considered: i) organ initiation, ii) organ growth and senescence, iii) photon transfer, iv) photosynthesis, v) basic features of the carbon (C), and nitrogen (N) metabolism, and vi) mass fluxes between objects. Balance equations are defined for three different substrate classes with their mobile and immobile forms: i) substrates... |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1371 |
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