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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:
Long-Term Manure Impacts on soil Nutrient Status and Surface Water Quality
Posted in: Environment by admin on January 1, 2001 | No Comments
Manure increases the solubility of P in soils, whether applied once or repeatedly. Long-term application of manure often results in the build-up of soil P to the point that a critical degree of soil P saturation is reached. Although this is good in terms of crop yield potential, the risk of P transfer from soil to water bodies may increase. Areas characterized by a high density of confined livestock operations are more at risk than others. Several modes of transport can result in P transfer from soils to waters. Results from studies conducted in the Prairies indicate that the calcareous nature of the soils does not preclude the downward movement of P deep into the soil profile. Movement of P will probably be accentuated by irrigation or incidental flooding. Overland transport by wind and water probably dominates in the Prairies, but subsurface transfer by lateral flow or seepage may also contribute to the load of P reaching water bodies. Areas most at risk can be identified by the Phosphorus Index (PI).
However, the PIa
Characteristics and Emission Rates of Odor from Commercial Swine Nurseries
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Odor emission rates and characteristics were evaluated at two commercial swine nurseries in Indiana during the months of March, April and May. The nursersies housing 94 to 250 pigs were mechanically ventilated with long term manure pit storages under a wire floor. Incoming ventilation air at one of the nurseries was tempered in a heated hallwaay. An eight member odor panel evaluated odor concentration with a dyanamic olfactormeter and odor intensity and hedonic tone at full strength. The odor concentration of incoming ventilation air ranged from 7-85 odor units per cubic meter and averaged 18 units. It ranged from 94 to 635 and aeraged 190 odor units in ventilation exhaust air. The mean odor emission rates of the two nurseries rates were 18.3 and 62.5 odour units respectively.
PERFORMANCE ASSESSMENT AND MODEL DEVELOPMENT OF A VARIABLEa
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Evolving H3N2 and emerging H1N2 swine inf luenza viruses in the United States
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Determining the Threonine Requirements of the High-Producing Lactating Sow
Posted in: Prairie Swine Centre by admin on | No Comments
There are 2 steps in defining a feeding strategy. The first is to set reproductive targets including the amount of weight gain for sows during different parities and the number of piglets a sow should nurse during lactation. The second step is to set nutritional requirements to meet these specific targets. Models developed for sow nutrition requirements in gestation, attempt to partition nutrient requirements into three components: maintenance, growth of the conceptus and reproductive tissue. These models have led to the factorial approach to defining nutrient requirements in gestating sows.
PSC Elstow Feed Mill Opens
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