Search for dissertations about: "hay"

Showing result 1 - 5 of 24 swedish dissertations containing the word hay.

  2. 1. Plant Population Dynamics and Conservation in Wooded Hay-Meadows – Effects of Intensified Management

    Author : Lotta Wallin; Brita M. Svensson; Mikael Lönn; Johan Ehrlén; Uppsala universitet; []
    Keywords : Biology; coordinates; demographic model; dispersal; hay-meadow; Hypochoeris maculata; litter; management; Polygala amarella; stochastic modelling; Succisa pratensis; Biologi;

    Abstract : The decrease in number and area of managed hay-meadows over the last century, in combination with the reduction of traditional management, threatens the biodiversity connected to these habitats. I experimentally examined how management intensity affected meadow characteristics and long-term population viability of three vascular plant species in wooded hay-meadows on the Swedish island of Gotland in the Baltic Sea. READ MORE

  4. 2. 'Hay fever' in children : the real story

    Author : Marit Westman; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Rhinitis, allergic (AR) and non-allergic (NAR), and chronic rhinosinusitis (CRS) are different expressions of upper airway inflammation. Chronic upper airway symptoms are common in childhood and adolescence. READ MORE

  5. 3. Vegetation and land-use in the Småland Uplands, southern Sweden, during the last 6000 years

    Author : Per Lagerås; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geologi; physical geography; Sweden; Geology; Småland Uplands; land-use history; pollen analysis; Holocene vegetation history; mineral magnetic analysis; AMS dating; clearance cairns; hay production; shifting cultivation; Picea migration; slash-and-burn cultivation; fysisk geografi;

    Abstract : Palaeoecological methods were applied to peat and sediment cores recovered from one bog (Bråtamossen) and two lakes (Avegöl and Femtingagölen) in the Småland Uplands, southern Sweden. The general aim was to reconstruct the landuse and vegetation history for the last 6000 years in this agriculturally marginal region. READ MORE

  6. 4. Feeding cassava foliage to sheep : nutrient properties and hydrogen cyanide toxicity

    Author : Khuc Thi Hue; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The potential of cassava foliage (Manihot esculenta Crantz) as a protein-rich feed in sheep production in Vietnam was examined by studying cassava foliage yield, hydrogen cyanide (HCN) content, toxicity and performance of lambs fed the foliage as a supplement. Cassava foliage fed ad libitum as a protein supplement to a basal diet of urea-treated rice straw gave similar lamb live weight gain (LWG) as diets supplemented with commercial concentrate or protein-rich foliage of stylosanthes (Stylosanthes guianensis) or jackfruit (Artocarpus heterophyllus). READ MORE

  7. 5. Asthma : Respiratory Symptoms, Atopy and Bronchial Hyperresponsiveness in Young Adults in Estonia and Sweden

    Author : Rain Jõgi; Amund Gulsvik; Uppsala universitet; []
    Keywords : Medical sciences; Asthma; atopic sensitisation; prevalence; epidemiology; ECRHS; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Medicine; medicin;

    Abstract : Morbidity of asthma has increased over the world. The reasons for this increase have remained unclear. Studies in children have reported considerable East-West difference in the prevalence of atopy and respiratory allergies. READ MORE