Browsing Fakultät für Agrarwissenschaften (inkl. GAUSS) by Title
Now showing items 892-911 of 922
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Vergleich von Haltungsvarianten für die Einzelhaltung von säugenden Sauen unter besonderer Berücksichtigung der Auswirkungen auf das Tierverhalten und der Wirtschaftlichkeit
(2004-09-29)In the here presented study significant aspects of animal welfare and economy in the farrowing area have been investigated. Three different housing systems have been compared inhere, as ... -
Vergleichende Analyse zweier Endstufeneberlinien unter besonderer Berücksichtigung des Geburtsgewichtes, in der Erzeugung von Ferkeln und Mastschweinen
(2021-07-07)The present dissertation compares two terminal sire lines based on the performance of their crossbred offspring under standardized environmental conditions along the entire production chain taking the birth weight into ... -
Verhalten von ausgewählten Tetrazyklinen und Sulfonamiden in Wirtschaftsdünger und in Böden
(2004-11-29)Veterinary antibiotics, mainly tetracyclines and sulphonamides, are commonly used in intensive livestock production. In 1999, the use of antibiotics in the EU and Switzerland amounted to ... -
Versicherungen als Risikomanagementinstrumente in der Landwirtschaft - Über staatliche Unterstützung und die Beurteilung satellitenbasierter Indexversicherungen
(2019-05-27)Increasing price and production risks in agriculture require an effective on-farm risk man-agement. Against this background, this dissertation focusses on agricultural insurance. There-fore, the first part of this dissertation, ... -
Verticillium longisporum on oilseed rape (Brassica napus L.)
(2020-01-24)Oilseed rape (Brassica napus) is the second most important source of vegetable plant oil. Products from oilseed rape are nowadays used as edible oil for humans, as meal for animal feeding and as biodiesel for industry. ... -
Vitrification, warming in sucrose-free medium and transfer of goat and mouse embryos
(2020-05-27)In farm animals, the usage of assisted reproduction programs, implying biotech-nologies such as estrus synchronization, superovulation, cryopreservation of embryos and embryo transfer, to mention some, helps to improve ... -
Volatile agricultural markets, how much is oil to blame?
(2016-07-07)Over the last decade the link between agricultural and oil markets has reinforced after the introduction of biofuels as substitutes for gasoline and diesel. Although the literature on price transmission between these markets ... -
Wasserbewegung und Stofftransport in Pelosolen am Beispiel des Südniedersächsischen Röt (Oberer Buntsandstein)
(2002-02-25)Former studies of modeling water and nutrient balance sizes lead to the question, if ordinary model concepts are applicable in structured soils with high clay content (e.g. vertisols). These ... -
Water dynamics in the rhizosphere
(2016-03-10)The flow of water from soil to plant roots is affected by the narrow region of soil close to the roots, the so-called rhizosphere. The rhizosphere is influenced by mucilage, a polymeric gel exuded by roots that alters the ... -
Water users
(2002-03-08)The study, based on empirical data collected in Pakistan's Punjab, deals intensively with the prevailing contingencies which may support or hinder farmer's participation in Water Users' ... -
Weaning and castration in beef calves
(2011-10-17)The present work included three trials to investigate the effects of abrupt separation on male and female beef calves of different ages (Trial 1; n=80) and the impact of the timing of this ... -
Weed species diversity in cropping systems: Management and conservation strategies
(2010-05-26)Throughout the last decades, the intensification of farming practices accompanied by simplification of crop rotations, increased nitrogen fertilisation rates and weed control by highly ... -
Weeds in a changing environment
(2015-04-10)In the course of the past decades, various impacts of climate change have been recognized to pose a challenge to arable production systems. Among others, shifts in the species composition of weed communities, particularly ... -
Werte in umweltgeschichtlichen Texten
(2017-07-11)This thesis makes a contribution to clarifying the discussion about which values dominate texts from the field of environmental history. Therefor articles from the field of environmental history are examined regarding the ... -
Wetterrisiken in der landwirtschaftlichen Produktion
(2015-02-16)The purpose of this dissertation is, on the one hand, to analyze the extent to which weather index-based insurance can contribute to the stabilization of weather-related income fluctuations in agriculture. Weather index-based ... -
Willingness to pay for and property rights beliefs on river water quality improvements in Central Chile - an application of the Choice Experiment method
(2011-11-24)Although significant improvements have been achieved in past years, river water quality in Chile is still poor in some places. In particular, the negative effect of pulp mil wastewater on river water quality has ... -
Wine and innovation - Consumer acceptance of new grape varieties and wine packaging
(2018-12-03)„Wine and Innovation – Consumer Acceptance of New Grape Varieties and Wine Packaging“ Wine has deep roots in the European culture. Therefore, it is not surprising that around 60 percent of the world’s wine production comes ... -
Winter Hardiness and Freezing Tolerance of Winter Faba Bean (Vicia faba L.): From QTL Identification and Validation to Genome-Wide Predictions of Genotypic Values
(2025-06-11)The growing interest in plant-based proteins and a more sustainable agricultural system, with wider crop rotations, reduced fertilizer input, and increased crop and fauna diversity, has intensified in response to climate ...