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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:
Dead Animal Management (Environmental Issues Resource Centre) English
Posted in: Prairie Swine Centre by admin on January 1, 1998 | No Comments
One of 12 chapters contained within the Environmental Issues Resource Centre. It examines various methods in which producers can effectively manage mortaliites associated with pig producltion units. The chapter also explores the future, in assessing what else needs to be done. This chapter is available in both French and English versions.
Odours and Swine Facilities
Posted in: Prairie Swine Centre by admin on | No Comments
Analyses of barley DE
Posted in: Prairie Swine Centre by admin on | No Comments
A significant range in DE content exists in western Canadian barley, which results in a large range in economic value. Physical parameters cannot be used to estimate the DE content in barley. Equations based on chemical characteristics can predict DE content accurately. Broiler AME and swine DE are not correlated; however, addition of enzymes to broiler diets improved the correlation between AME (+ enzyme) and DE greatly. Finally, the results indicated that barley DE can be predicted accurately by NIRS; however, a larger sample set is required to increase robustness of calibration.
Vocal quality is correlated with levels of stress hormones in domestic pigs.
Posted in: Welfare by admin on | No Comments
Effects of stocking density on lambs being transported by road.
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Evaporation of Water from Slurry Using Solar Energy
Posted in: Environment by admin on | No Comments
Tightening Dutch regulations regarding the application of animal slurry has been increasing in recent years. Land application is no longer allowed during winter months and sealed slurry storage containers must be utilized for any production units built after 1987. Due to a limited land base, slurry can be transported 50-250 km from the site of production which is very costly. One recent design looking at ways to reduce slurry accumulation, and subsequent transportation and land application, examined evaporation of water from the slurry. Designed in such a manner as not to increase the amount of ammonia emissions generated through the evaporation process. A transparent cover was placed over a slurry storage unit (1m maximum depth) with the condensate being collected in storage containers outside the sluury storage unit. The transparent cover was effective in reducing the total slurry volume, however the amount removed (water evaporized) will be dependant on sun radiation, outside temoperature and windspeed. Manure application and transportation costs can be effectively decreased by Dfi 3.90 per m2 of storage capacity or Dfi 4.90 per fattening pig.
Influence of Dietary Factors on the pH and Ammonia Emission of Slurry from Growing-Finishing Pigs
Posted in: Environment by admin on | No Comments
We investigated the effects of dietary factors on the pH and the ammonia emission from slurry of growing-finishing pigs. Sixteen male hybrid pigs (80 to 90 kg BW) were allotted to one of four diets based on barley-wheat, tapioca, barley-tapioca, and sugar beet pulp. Diets were formulated to have similar NE and CP contents and a similar lysine:NE ratio. Diets differed in nonstarch polysaccharide content (NSP) and dietary electrolyte balance (dEB). Urine and feces were daily collected quantitatively in metabolism cages and mixed as a slurry at the end of the collection period. After mixing, the pH and the ammonia emission from the slurry were measured daily in a laboratory setup for 7 d at 20 degrees C. The type of diet affected the pH of the slurry and the ammonia emission (P < .001). The pH of the slurry from pigs fed the sugar beet pulp-based diet was .8 unit lower and ammonia emission was 52 to 53% lower than that of the other three diets. The low dEB and high NPS sugar beet pulp-based diet increased the VFA concentration and reduced the pH and ammonia emission from the slurry. We conclude that dietary NSP and dEB influence the pH and ammonia emission from slurry of growing-finishing pigs.