Sökning: "animal enrichment"
Visar resultat 1 - 5 av 26 avhandlingar innehållade orden animal enrichment.
1. Using spatial distribution and behaviour to determine optimal space allowances for poultry and rabbits
Sammanfattning : Previous research on the effect of stocking density on welfare has focused on adverse effects on health and behaviour. Absence of such effects does not mean that space allowance is optimal from the animals’ point of view. This thesis aimed to assess optimal space allowances by studying spatial distribution and behaviour. LÄS MER
2. Detection and Characterisation of Salmonella in Animal Feed Samples by PCR-Based Methods
Sammanfattning : Animal feed is a recognised source of Salmonella enterica for farm livestock and may also indirectly cause infection in people consuming foods of animal origin. It is therefore important to have rapid, reproducible and specific methods for the detection of Salmonella in feed, and for the characterisation of strains for further epidemiological investigations or to trace the source of contamination in a production facility. LÄS MER
3. Diagnostic PCR for the Detection of Yersinia enterocolitica and Salmonella in the Food-Chain: Reliability of PCR Performance
Sammanfattning : This thesis deals with the methodological advances of diagnostic PCR including reliability of PCR and pre-PCR processing of food and feed samples. Diagnostic PCR has been greatly improved by the introduction of the second generation of PCR, so-called real-time PCR. LÄS MER
4. Responses to reduced industrial metal emissions : An ecotoxicological study on Pied Flycatcher (Ficedula hypoleuca, Aves)
Sammanfattning : Metals have been used by humans for thousands of years, and this has resulted in increased concentrations in the biosphere. The environment around point-sources, such as mines and smelters, are of particular concern, as metals may accumulate to high concentrations, and potentially reach levels toxic to the local flora and fauna. LÄS MER
5. Selenium Compounds in Milk. Studies of Selenoproteins, Selenium Enrichment and Oxidative Stability of Food
Sammanfattning : Selenium is an essential nutrient and in animals and humans it can either be specifically incorporated into proteins as selenocysteine or randomly as selenomethionine. It can also occur as low-molecular-weight compounds and the form of selenium in foods may also influence food quality. LÄS MER
