| seroprevalence and spatial distribution of neospora caninum in a population of beef cattle. | a cross-sectional serological survey for neospora caninum was carried out in swedish beef cattle in order to estimate the seroprevalence and investigate any geographical patterns of the infection. blood samples were collected from 2754 animals in 2130 herds and analysed for presence of antibodies to n. caninum. the study included 18.5% of all swedish beef herds. spatial autocorrelation was assessed by calculating moran's i and cluster detection was performed using lisa- and spatial scan statisti ... | 2009 | 19709771 |
| spatial patterns of bovine corona virus and bovine respiratory syncytial virus in the swedish beef cattle population. | both bovine coronavirus (bcv) and bovine respiratory syncytial virus (brsv) infections are currently wide-spread in the swedish dairy cattle population. surveys of antibody levels in bulk tank milk have shown very high nationwide prevalences of both bcv and brsv, with large variations between regions. in the swedish beef cattle population however, no investigations have yet been performed regarding the prevalence and geographical distribution of bcv and brsv. a cross-sectional serological survey ... | 2010 | 20492637 |
| recent trends in nutrient concentrations in swedish agricultural rivers. | in five out of twelve swedish agricultural rivers examined during the period 1993-2004, significant trends for decreasing concentrations of reactive inorganic nitrogen (rin) were indicated after flow normalisation. these decreases were constant (equal to 2-4% per year), most apparent in the scania region, and weakly correlated to reductions in livestock density (pearson correlation coefficient -0.825). the number of grazing cattle livestock units per unit area of arable land decreased on average ... | 2007 | 17239939 |