Sökning: "Organic farming"
Visar resultat 16 - 20 av 50 avhandlingar innehållade orden Organic farming.
16. Blue Oceans with Blue Mussels - Management and planning of mussel farming in coastal ecosystems
Sammanfattning : Eutrophication is one of the largest and most serious global threats to the marine environment. The effect of eutrophication has become increasingly clear during recent time, and major economic and political efforts are being made to tackle its causes and consequences in Sweden and its surrounding seas. LÄS MER
17. Welfare, performance and emissions in a stationary housing system for organic growing-finishing pigs : a holistic approach
Sammanfattning : High standards of animal welfare and health and providing animals with a natural environment and organic feed are primary objectives in organic pig farming. However, housing solutions in organic pig farming are not uniform. LÄS MER
18. Modeling the Potential for Carbon Removal in Agriculture: Integrating Farmer Perspectives
Sammanfattning : The overarching aim of this thesis is to provide insights into the dynamic processes governing SOC stocks and to identify viable paths for agricultural systems to contribute to climate change mitigation. By integrating current scientific knowledge of carbon sequestration in agriculture with feasible agricultural applications, this work proposes local realistic strategies for enhancing soil organic carbon (SOC) and presents a quantitative assessment of their potential for CO2 removal. LÄS MER
19. Evaluation of local feed resources for hybrid catfish (Clarias macrocephalus x C. gariepinus) in smallholder fish farming systems in central Vietnam
Sammanfattning : The aim of this thesis was to examine the current feeding situation for fresh water fish in Central Vietnam, to evaluate the potential nutritive value of locally available feed resources for hybrid catfish (Clarias macrocephalus x C. gariepinus) and Nile tilapia, to determine the dietary requirement of lysine for hybrid catfish, to estimate the requirements for the other essential amino acids (EAA) by using ideal protein concept, and finally to evaluate the suitability of cassava leaf meal and shrimp head meal as a partial replacement for fish meal in the diet, without or with lysine supplementation, for hybrid catfish fingerlings. LÄS MER
20. New potential in old varieties : Using landrace cereal to meet food production challenges
Sammanfattning : Landrace cereals – historical varieties characterised by high genetic diversity – have long been considered obsolete, and have almost completely been replaced by high yielding but high input-dependent cultivars. However, the need for increased multifunctional and low-input farming, and for finding varieties that can be robust to environmental stresses, has meant that these old varieties have been revalued. LÄS MER
