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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:
Animal and Fed Factors Determining N and P Excretion with Pig Manure
Posted in: Environment by admin on January 1, 1996 | No Comments
The Ontario nutrients situation is rapidly covered presenting that for a sow in inventory /year, 18 pigs for slaughter are produced. The resulting nutrients excretion for such production is approximately 114 kg of N, 23 kg of P and 70 kg of K excreted in the manure and of those amounts, around 70% of N, 65% of P and 70% of K excreted in the manure come from the grower-finisher pigs. The determining factors for N and P excretion are also presented as being the difference between the supply of nutrients and the animal requirements and attributed to feed usage, amino acids (Aas) and P levels and digestibility, the pigs maintenance requirements, the Aas balance and the retention rate of N and P. Different models that predict the N and P excretion in the manure are discussed. A model based on input/output nutrients would be a good tool at individual pig farm unit to evaluate the nutrient balance.
Research Briefs
Posted in: Prairie Swine Centre by admin on | No Comments
A low cost balloon-type lagoon cover
Posted in: Prairie Swine Centre by admin on | No Comments
Existing odour control methods for manure lagoons are cost intensive. Economical and effective covering methods for manure lagoons need to be studied and developed. This study demonstrated that a balloon-type manure lagoon cover could be an economical and effective method in reducing odour emission to the atmosphere. In this balloon type cover, a plastic tarp was tightened around perimeter, and inflated on the top, of a lagoon using a low pressure blower. The perimeter of the tarp was airtight. That way, odour was confined within the lagoon and the emission of odour into the atmosphere was minimized. Technical aspects such as proper installation and sealing of perimeters for the cover were tested. Critical pressures (minimum operating pressures to prevent flapping of the tarp) versus wind were determined. The cover effectively eliminated the odour emission to atmosphere and improved the landscape. The cover cost was approximately $6,000, which is considered to be much less expensive compared to solid structure covers such as steel and wood. It is expected that the cover to be used for earthen lagoons if a concrete foundation around the lagoon perimeter is constructed.
Lameness in dairy cattle.
Posted in: Welfare by admin on | No Comments
The effect of beak trimming on two strains of commercial tom turkeys.
Posted in: Welfare by admin on | No Comments
Health hazards affecting the animal confinement farm worker
Posted in: Environment by admin on | No Comments
This article discusses several important issue regarding confinement farming of poultry and swine. Major issues that are raised include the environment of the animal confinement facility, aerosols, gases, noise, and the potential risk of these factors to the farm worker.
Manure Odor Reduction from Pit Additives
Posted in: Environment by admin on | No Comments
Odor is a subject of growing public concern. Implementation of a odor control strategy can significantly reduce the level of offensive odor generated from and intensive livestock operation. Commerical pit additives are one alternative in the fight to reduce odor. This study examined the effectiveness of commercial pit additives for odor reduction effectiveness. Odors were tested through olfacrometry( A panle of four individual smell mixtures of odorous air from cylinders diluted by specifice amounts of fresh air. Dilution rates were adjusted until all panel members detect some odor, the odor threshold. A 0 to 87 percent reduction in the odor threshold was found with various responses to volatile fatty acids, pH, total nitrogen and ammonia nitrogen.