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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:
Gas Emissions from Swine Facilities (EIRC)
Posted in: Prairie Swine Centre by admin on January 1, 1998 | No Comments
Sociology and Swine Facilities
Posted in: Prairie Swine Centre by admin on | No Comments
Barn management and control of odours
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Building odour emissions constitute an important contributor to the level of nuisance caused by a pig farm. Those emissions are less intense than what is produced by manure spreading, but their frequency and duration are much higher. The nature and concentration of more that 160 compounds affect odour characteristics of an air sample collected in a swine building. Considering this complex mix of substances, the human nose is still the best instrument to characterize odours. The forced choice dynamic olfactometry method is the most accepted technique used to measure odour concentration and intensity. It requires a meticulous selection of panel members, expensive equipment and an experienced panel leader. Different techniques have been discussed to reduce odour emissions from swine buildings. Even if a lot of research has been done, many questions stay unanswered. For example, more information is required on performance and impact on odour before new building designs, feed and slurry additives and biofilters can be recommended and applied on a large-scale basis. However, if the barn is kept very clean, the manure is removed as often as possible, an efficient dust control technique is implemented and multiphase feeding programs are used (to reduce nitrogen excretions), odour emissions from the building are likely to be maintained at an acceptable level for the average farm community.
Animal welfare issues: dairy.
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A California survey concerning chronic equine malnutrition .
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Energy Usage and Lactating Sow and Piglet Performance in Farrowing Compartments with a Lowered Set Point of the Room Temperature
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Most of the energy usage within a sow farm occurs in the farrowing compartment. Can a reduction in temperature setting of 2C in combination with an adequate micro-climate contribute to energy savings and improved lactating sow performance? The study was conducted in four naturally ventilated farrowing compartments using a total of 96 sows. The reduction in room temperature had no effect on lactating sow and piglet performance. Energy savings in the compartments with reduced temperature is addressed.
A System for On-Farm Preservation and Storage of Swine Mortalities
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Phosphoric acid presevation of swine mortalities offers the promise of value-added products and protection of the environment from excessive nutrients, odour and the risk of disease transmission. The ensiled material is suitable for long term storage, and it can be made essentailly pathogen free. The key to making this process practical for on-farm use is a system that reduces labour and is convenient to use on a daily basis or as needed. This paperis a progress report on the debvelopment of a preservation system which includes grinding, pasteurization and phosphoric acid preservation.
Composting Separated Swine Manure Solids
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Composting of solid swine manure is becoming an increasing laternative for manure handling straegies. This particular study examined the ability to compost solid swine manure with two media: sawdust andchopped fescue hay. The solid manure and sawdust or fescue hay were placed in compost bins in ordr to achieve a carbon:nitrogen ratio of 25-35:1 and a moisture content of 55-65%. Internal temperature fo the compost wasmeasured to predict biological activity, the compost was mixed when the internal temperature decreased. Preliminary resultrs saw a reduction in weight of 33% in the manure-sawdust mixture and 59% in the manure-fescure chopped mixture. Compostinfg days ranged from 36 – 44 days.