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Industry Partners
Prairie Swine Centre is an affiliate of the University of Saskatchewan
Prairie Swine Centre is grateful for the assistance of the George Morris Centre in developing the economics portion of Pork Insight.
Financial support for the Enterprise Model Project and Pork Insight has been provided by:
Odour and ammonia emissions from intensive pig units in Ireland
Posted in: Environment by admin on January 1, 2005 | No Comments
FILTRATION OF EFFLUENTS FOR MICROIRRIGATION SYSTEMS
Posted in: Environment by admin on | No Comments
The Properties of Combined Horizontal Flows of Air and Farm Livestock Slurries in a Tubular Loop Aerator
Posted in: Environment by admin on | No Comments
Pig slurries and dairy cattle slurries exhibit shear-thinning characteristics and therefore two-phase horizontal pipeline flows of water and slurries with air were studied in a novel Tubular Loop Aerator (TLA) to determine whether air injection could achieve shear-thinning effects, leading to reduced energy requirements. The TLA incorporated a pipeline of 402mm internal diameter which was 65m in length. It was found that the pressure gradients resulting from these two-phase flows were described satisfactorily by a correlation based on ratios of single- and two-phase pressure gradients. This technique enabled convenient comparison of the flow characteristics of slurries with different total solids (TS) concentrations at different air injection rates. Pig slurries containing up to 35% TS showed no reductions in pressure loss due to air injection, whereas cattle slurries of 2–3% TS produced some instances of pressure reduction. These reductions occurred at low superficial liquid flow velocity (05 m/s) and o2% (vol/vol) air injected, but the results did not provide statistically significant evidence of an energy-saving effect.
Streptococcus suis infection
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