Silage Inoculants Improves Quality and Aerobic Stability in Grass, Clover-Grass and Lucerne Silage

The type of silage additive will influence the characteristics of fermentation, dry matter (DM) losses, hygienic quality and aerobic stability of silage. The appropriate use of an additive also depends on the crop to which it is applied. Homofermentative lactic acid bacteria (LAB) strains are selected for rapid growth under under variable temperatures, herbages and dry matter concentrations. The homofermentative LAB are highly competitive and produce largely lactic acid and reduce pH and ammonia-N content compared to untreated silage (Muck 2012). Heterofermentative LAB such as Lactobacillus buchneri reduce the growth of yeast and mould and increase aerobic stability. These effects are retained when heterofermentative LAB are added in combination with homofermentative LAB (Kleinschmit et al. 2005). An alternative to the combination of homo- and heterofermentative inoculants is to use homofermentative LAB in combination with a chemical component such as sodium benzoate (NaBe). In an experiment by Jaakkola et al. (2010) a combination of Lactobacillus plantarum and sodium benzoate were more efficient than Lactobacillus plantarum and Lactobacillus buchneri to prevent heating of silage. The objective of the study was to investigate efficacy of different inoculant types on fermentation characteristics and aerobic stability of Lucerne (L), ryegrass (R), red clover-ryegrass (RCR) and ryegrass-timothy (RT) silages

Sprogenes status på DPU

På DPU har vi nu et lille håb om at sprogfagene igen kommer på landkortet. I de forløbne 10-15 år har sprogfagene på DPU været for nedadgående – en tendens der startede i 1990’erne og blev cementeret med dannelsen af DPU i 2000, hvor Dan- marks Lærerhøjskoles orientering omkring folkeskolens fag og fagdidaktikken blev marginaliseret til fordel for nye institutter med fokus på pædagogisk antropologi, filosofi, sociologi, psykologi og curriculumforskning. (...

Effect of the fat composition of a single high-fat meal on inflammatory markers in healthy young women

The aim of the present study was to examine the effect of a single high-fat meal with different fat quality on circulating inflammatory markers and gene expression in peripheral blood mononuclear cells (PBMC) to elucidate the role of fat quality on postprandial inflammation. A postprandial study with fourteen healthy females consuming three test meals with different fat quality was performed. Test days were separated by 2 weeks. Fasting and postprandial blood samples at 3 and 6 h after intake were analysed. The test meal consisted of three cakes enriched with coconut fat (43 % energy as saturated fat and 1 % energy as a-linolenic acid (ALA)), linseed oil (14 % energy as ALA and 30 % energy as saturated fat) and cod liver oil (5 % energy as EPA and DHA and 5 % energy as ALA in addition to 31 % energy as saturated fat). In addition, ex vivo PBMC experiments were performed in eight healthy subjects investigating the effects of EPA and ALA on release and gene expression of inflammatory markers. The IL-8 mRNA level was significantly increased after intake of the cod liver oil cake at 6 h compared with fasting level, which was significantly different from the effect observed after the intake of linseed cake. In contrast, no effect was seen on circulating level of IL-8. In addition, ALA and EPA were shown to elicit different effects on the release and mRNA expression levels of inflammatory markers in PBMC cultured ex vivo, with EPA having the most prominent proinflammatory potentia