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Aufsatz
Evaluation of breeding strategies for polledness in dairy cattle using a newly developed simulation framework for quantitative and Mendelian traits
(2016-06-29)
Background: Intensified selection of polled individuals has recently gained importance in predominantly horned dairy cattle breeds as an alternative to routine dehorning. The status quo of the current polled breeding pool of genetically-closely related artificial insemination sires with lower breeding values for performance traits raises questions regarding the effects of intensified selection based on this founder pool.
Methods: We developed a stochastic simulation framework that combines the stochastic simulation ...
Aufsatz
Natural and land-use drivers of primary production in a highly vulnerable region of livestock production (Sierras del Este – Uruguay)
(2019-02-21)
Sierras del Este is one of the two regions in Uruguay that are most vulnerable to climate change. A relevant vulnerability factor is the variability of the natural grasslands’ productivity. The objective of this study was to analyse the role of natural and land use drivers on grassland productivity as an essential factor for increasing the adaptive capacity of livestock production and reducing their vulnerability to extreme climatic events. The period 2000–2015 was analysed using the aboveground net primary production ...
Dissertation
Untersuchungen zur Entwicklung einer wassersparenden Methode für die streifenförmige Beregnung von Dammkulturen im Feldgemüsebau
(2019-04)
Im Freilandgemüsebau der gemäßigten Klimazone Europas erhöhen Witterungsunsicherheiten und Trockenstress im Frühjahr und Sommer das Risiko für Ernteeinbußen und –ausfälle. Insbesondere bei im Dammanbau dicht unter der Oberfläche der Dammkrone gesäten Kulturen, wie beispielsweise der Möhre, besteht bei trockener Witterung die Gefahr eines ungleichmäßigen und verzögerten Auflaufens mit Folgen für die Bestandsentwicklung. Eine boden- und pflanzenschonende Beregnung der Dammkrone, die genügend pflanzenverfügbares Wasser ...
Aufsatz
Metabolic disorders in the transition period indicate that the dairy cows' ability to adapt is overstressed
(2015)
Metabolic disorders are a key problem in the transition period of dairy cows and often appear before the onset of further health problems. They mainly derive from difficulties the animals have in adapting to changes and disturbances occurring both outside and inside the organisms and due to varying gaps between nutrient supply and demand. Adaptation is a functional and target-oriented process involving the whole organism and thus cannot be narrowed down to single factors. Most problems which challenge the organisms ...
Aufsatz
Physical and chemical optimisation of the seedball technology addressing pearl millet under Sahelian conditions
(Kassel University Press, 2019-01-16)
This study deals with the development of the seedball technology in particular for dry sowing under Sahelian conditions and pearl millet as crop. At first, our participatory evaluation in Senegal showed that (i) local materials needed for seedball production are locally available, (ii) the technology conforms to the existing management systems in the Sahel, and (iii) socio-economic conditions do not hinder seedball adoption. Afterwards, seedball was mechanically and chemically optimised. Pearl millet seedlings derived ...
Aufsatz
What climate-smart agriculture means to members of the Global Alliance for climate-smart agriculture
(Section Specialized Partnerships in Sustainable Food Systems and Food Sovereignty at the University of Kassel, Germany and Federation of German Scientists (VDW), 2019-06-05)
Climate-smart agriculture (CSA) is a recently proposed solution to address increasing concerns about food scarcity caused by climate change. The UN Food and Agriculture Organization defines CSA as an increase in agricultural productivity while adapting and building resilience to climate change and reducing greenhouse gas emissions, where possible. However, this definition of CSA and relevant methods are central to a debate between different groups of stakeholders, such as NGOs, policy-makers in developed and developing ...
Aufsatz
Dietary habits and nutritional status among school children in rural and urban areas: A comparative study from Bogor, Indonesia
(Section Specialized Partnerships in Sustainable Food Systems and Food Sovereignty at the University of Kassel, Germany and Federation of German Scientists (VDW), 2018-12-26)
When Indonesia was combating child undernutrition, overnutrition emerged which made the situation more complex. In fact, dwelling area like rural versus urban is one of the direct determi- nants which play a big role in shaping dietary habits and nutritional status in population. However, there is a lack of data that shows dieteray habits between urban and rural areas in Indonesia. This study aims to compare the dietary habits and nutritional status between children living in urban and rural areas in Bogor. This study ...
Dissertation
Methodenentwicklung für die Trennung verschiedener Proteinhydrolysate in Peptidfraktionen per Crossflow Diafiltration & sensorische Bewertung der Fraktionen
(2019)
Bestimmte Peptidverbindungen besitzen Geschmacksqualitäten, welche sie für einen Einsatz in Lebensmitteln qualifizieren. Neben einer chemischen Synthese bestimmter Verbindungen können Peptide auch durch Hydrolyse intakter Proteine gewonnen werden. Zur Trennung und Aufreinigung stellt die Crossflow-Filtrationstechnik eine skalierbare Alternative zu chromatographischen Trennverfahren dar.
Im Rahmen dieser Arbeit wurde ein Crossflow-Diafiltrationsverfahren unter Verwendung hydrophilisierter Polysulfon-Membranen (MWCO: ...
Aufsatz
Socio-economic characterisation of date palm (Phoenix dactylifera L.) growers and date value chains in Pakistan
(Biomed Central, 2016-08-02)
Increasing food production to feed its rapidly growing population is a major policy goal of Pakistan. The production of traditional staples such as rice (Oryza sativa L.) and bread wheat (Triticum aestivum L.) has been intensified in many regions, but not in remote, drought-ridden areas. In these arid, marginal environments dates and their by-products are an option to complement staples given their high nutritive value and storability. To fill knowledge gaps about the role of date palm in the household (HH) income ...
Zeitschrift
Vol. 1 No. 1 (2013): Beyond Rio+20: Green economy in agriculture and food system
(Department of Organic Food Quality & Food Culture, Faculty of Organic Agricultural Sciences, the University of Kassel and the Federation of German Scientists (VDW), 2013)