Outdoor pig fattening at two Swedish organic farms—Spatial and temporal load of nutrients and potential environmental impact

Combined production of free-range pigs and energy crops—animal behaviour and crop damages

“…Results of soil samplings support the results from our behavioural studies with the highest concentrations of soil inorganic N in zones with willow (Sørensen et al, in preparation). Some studies with pigs on pasture have indicated particularly high nutrient loads from excretions around the hut and the feeders (Eriksen and Kristensen, 2001;Salomon et al, 2007;Stolba and Wood-Gush, 1981). This may explain why particularly this willow zone, which was located between the feeding area and the area with the hut, was more widely used for defecation.…”

Diurnal rhythms, locations and behavioural sequences associated with eliminative behaviours in fattening pigs

“…Pigs would separate their dunging areas away from their lying areas (Buchenauer et al, 1982;Petherick, 1983a,b;Simonsen, 1990;Wechsler, 1996;Whatson, 1985) and their feeding areas under outdoor conditions (Olsen et al, 2001;Salomon, 2007) or in pens with environmental enrichment and ample space (Simonsen, 1990). If there were outdoor areas in pens, 88.5% defecations and 75.1% urinations occurred outdoors (Olsen et al, 2001).…”

Phosphorus and nitrogen losses to surface waters from a forested feedlot for bulls in Finland

“…In sow paddocks in the UK (Watson et al. , 2003) and in outdoor pig fattening areas in Sweden (Salomon et al. , 2007), the distribution of dung and urine also varied spatially being the highest near plot boundaries and places for resting, feeding and drinking.…”