Global ETD Search

1	Dietary supplementation of 25‐hydroxycholecalciferol as an alternative to cholecalciferol in swine diets: A review Lütke-Dörhoff, Michael, Schulz, Jochen, Westendarp, Heiner, Visscher, Christian, Wilkens, Mirja R. 28 May 2024 (has links) 25‐hydroxycholecalciferol (25‐OHD3) formed via hepatic hydroxylation from vitamin D, cholecalciferol, represents the precursor of the biologically active vitamin D hormone, 1,25‐dihydroxyvitamin D. Due to a higher absorption rate and the omission of one hydroxylation, dietary supplementation of 25‐OHD3 instead of vitamin D3 is considered to be more efficient as plasma concentrations of 25‐OHD3 are increased more pronounced. The present review summarises studies investigating potential beneficial effects on mineral homeostasis, bone metabolism, health status and performance in sows, piglets and fattening pigs. Results are inconsistent. While most studies could not demonstrate any or only a slight impact of partial or total replacement of vitamin D3 by 25‐OHD3, some experiments indicated that 25‐OHD3 might alter physiological processes when animals are challenged, for example, by a restricted mineral supply. info:eu-repo/classification/ddc/636 ddc:636
2	Mining booms impact on local labor markets in Norrbotten county, Sweden Andrup, Axel, Sundström, Kristoffer January 2018 (has links) The objective of this thesis has been to analyze whether booms in the iron ore market has any significant effects on local labor markets in certain municipalities in Norrbotten County during the time period 2000-2016. Previous research has established that certain types of booms and busts influenced local labor markets. The analysis was done by using panel data and regression models where the results where compared over non-mining and mining municipalities. The results gave a vague response with both conclusive and inconclusive results over the variables investigated. The main conclusion is that although the mining industry is a big part of local labor markets in Norrbotten County, it is important for firms and policymakers to understand that the mining industry is not the only important factor and that decisions should not be entirely based on the mining industry and its markets. / Målet med denna uppsats var att analysera ifall booms i järnmalmsmarknaden har någon signifikant påverkan på lokala arbetsmarknader i utvalda kommuner i Norrbotten under tidsperioden 2000–2016. Tidigare forskning har fastställt att vissa booms och busts kan influera lokala arbetsmarknader. Analysen har genomförts med paneldata och regressionsmodeller där resultat jämförts mellan gruvkommuner och ickegruvkommuner. Resultaten gav otydliga resultat då vissa var konklusiva medan andra inte var konklusiva. Den huvudsakliga slutsatsen som nåtts är att även om gruvindustrin är en viktig del av de lokala arbetsmarknaderna, är det viktigt för företag och beslutsfattare att förstå att gruvindustrin inte är den enda påverkande faktorn och att framtida beslut och satsningar inte enbart ska baseras kring gruvindustrin och dess marknad. Boom Labor markets Mining Iron ore Norrbotten Mineral demand Mineral supply Labor demand shock Econometrics Mining market LKAB Boom Arbetsmarknader Gruvdrift Järnmalm Norrbotten Mineralefterfrågan Mineralutbud Arbetsefterfrågechock Ekonometri Gruvmarknaden LKAB Economics Nationalekonomi

Search results

Dietary supplementation of 25‐hydroxycholecalciferol as an alternative to cholecalciferol in swine diets: A review

Mining booms impact on local labor markets in Norrbotten county, Sweden