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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:
Emulsifier content and side effects of oil-based adjuvant vaccine in swine
Posted in: Production by admin on January 1, 2006 | No Comments
Pork industry honours innovators at Banff Pork Seminar
Posted in: Production by admin on | No Comments
Three players in the western Canadian pork industry were honoured for innovation in the field of pork production at the 2006 Banff Pork Seminar Jan. 17-20.
The winners of this year’s F.X. Aherne Prize for Innovative Pork Production include Dr.
Pradip Maiti of Nutratech Inc. in Winnipeg, Man.; Tony Charanduk of Hypor Inc. in
Ituna, Sask.; and Darcy Pauls and Dr. Claude Mason of The Puratone Corporation,
Niverville, Man.
A bench-scale aeration study using batch reactors on swine manure stabilization to control odour in post treatment storage
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A bench-scale study on swine manure stabilization for odour control was conducted using
batch aeration reactors. In trial 1, two aeration lengths, i.e., 0.5 and 4.0 day, were used
under uncontrolled ambient temperature that increased gradually over the experimental
period. While in trial 2, a 16.0-day aeration scheme was employed under constant 17 1C. An
airflow rate of 1.2 L/s/m3 was used for both trials to aerate batch reactors containing
finishing pig manure with initial total solids (TS) levels ranging from 0.5 to 4.0%. Manure
stabilization during the 90-day post-treatment storage was evaluated by the changes in
organic materials, nitrogen and volatile fatty acids (VFA). The odour generation potential in
the treated manure was determined by the changes in VFA. Up to 827mL of liquid was lost
due to aeration related foaming. The reductions in total volatile solids (TVS), 5-day
biochemical oxygen demand (BOD5), total Kjeldahl nitrogen (TKN) and VFA during storage
were improved when aeration length increased. Low solids levels offered a more
advantageous circumstance for manure stabilization and odour control. Biodegradation
of organic matter, removal of nitrogen, and breakdown of VFA would increase with
increasing ambient temperature. VFA removals in manure under 16.0-day aeration were
higher than those under 0.5- and 4.0-day aeration; however, VFA regeneration started to
exceed its consumption on day 20 (4 days after the aeration treatment). BOD5 was the best
estimate of VFA concentration in the aerated manure during storage. The 4.0-day aeration
scheme was sufficient to stabilize manure to effectively assuage odour generation potential
during the 90-day storage under increasing ambient temperature conditions.
Economic Assessment of the New Environment Regulations for the Pig Industry in Manitoba
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New phosphorus regulations for pig producers in Manitoba have been proposed. To comply with the proposed regulations, producers will be required to make changes in their managing of pig manure. These changes will come at some cost. Part 1 of this study (Salvano et al 2006) has outlined the proposed phosphorus regulations, namely the maximums of two-times the removal rate of phosphorus and one-times the removal rate of phosphorus. It also has outlined the framework for analysis of related changed manure management costs and has assigned unit costs to each of the alternative activities involved. Part 2 (this part) applies the framework to the Manitoba pig industry to determine an estimated additional annual cost to the industry for compliance to the proposed phosphorus regulations. The additional costs to individual operations have been estimated. These estimates have been aggregated to determine estimated added Provincial costs. The estimated added annual cost to the Manitoba pig industry under a maximum threshold regulation of 2xPhosphorus removal rate is 17.88 million dollars and the estimated added annual cost to the industry under a maximum threshold regulation of 1xPhosphorus removal rate regulation is 27.86 million dollars. The added annual costs are not distributed evenly across the Province. Under the 1xPhosphorus removal threshold regulation, the R.M. of Hanover faces the greatest added annual cost of 6.68 million dollars. La Broquerie, De Salaberry, Morris, and Ste. Anne follow, with additional annual cost estimates of 2.92, 1.87, 1.61 and 1.21 million dollars respectively. The added annual costs are also not distributed evenly across all operations. Operations with enough land face less added costs than those that require trucking or treatment. Under the 1xPhosphorus removal threshold and estimate of 56.87 percent of operations have enough land available, while 9.75 percent of operations will truck up to 20 km, 4.58 percent will truck up to 40 km and 28.79 percent will treat manure. The estimated added annual cost to the Manitoba pig industry under a maximum threshold regulation of 2xPhosphorus removal of 17.88 million dollars represents about 18% of the estimated annual 2005 net income accruing to pig producers in the Province. The estimated added annual cost under a maximum threshold regulation of 1xPhosphorus removal of 27.86 million dollars represents about 28% of the estimated annual 2005 net income accruing to pig producers in the province.
COMPARISON OF ODOR DISPERSION PREDICTIONS BETWEEN CFD AND CALPUFF MODELS
Posted in: Environment by admin on | No Comments
Plume-in-grid modeling for particulate matter
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