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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:
Documenting a century of achievement in the livestock industry
Posted in: Production by admin on January 1, 2007 | No Comments
Jim Dalrymple, James White and David Hume have just published an important and interesting book entitled “The Livestock Industry in Ontario – A Century of Achievement.”
This 250-page book describes changes in the dairy, poultry and pork industry over the last century. It also has a chapter describing how technology has affected food production from 1900 to 2000.
It begins with the authors describing some of the technological advances agriculture has made in the last 100 years. How many know, for instance, that there were 776,000 horses on Ontario farms in 1916, but by 1961 this number had declined to 89,000, while tractors had increased to about 150,000.
A “big” tractor in the 1950s was approaching 50 hp. I can remember when my neighbour purchased an International W-6 which was then considered one of the largest in the neighbourhood. The 37-hp International Farmall W6 Standard gas tractor was rated as a three-plow tractor. The author says that, over the century, the percentage of capital invested in equipment increased from six per cent to 13 per cent of gross income and the investment in livestock and poultry decreased from 14 to six per cent.
The potential contribution of separation technologies to the management of livestock manure
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The objective of this review is to establish the scope
of separation technologies within the context of liquid
animal manures, marking out what can be achieved and
that which requires additional steps, such as biological
or chemical treatment. The principles (rather than
specific equipment) are considered in the light of the various demands on manure management, including the
likely level of success that can be identified in each
application. It was concluded that introducing a separation technology is the right option
if the main purpose is either (a) the improvement of
manure handling, (b) the removal of specific insoluble
components of the effluent, including non-reactive
organic matter and some of the phosphorous, organic
nitrogen, copper and zinc, or (c) the preparation of a
concentrate to produce an organic fertiliser product.
Alone, separation has little effect on pathogens, offensive
odour or soluble components, including ammoniacal
nitrogen.
Comparative evaluation of mathematical functions to describe growth and efficiency of phosphorus utilization in growing pigs
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The aim of this study was to evaluate 4 candidate
mathematical functions for best fit in describing specific
data sets on pig growth, and to evaluate these 4 functions
for describing of P utilization for growth in a separate
experiment. It was found that the nonlinear mixed analysis can give reliable parameter estimates and is a useful tool when analyzing data from multiple studies. Although the Gompertz equation has been used extensively, the Richards equation was superior in describing growth over time and is recommended for use in data analysis in nonruminant animals. Therefore, it is recommended that future studies on growth and nutrient intake analyses consider other models such as the monomolecular and flexible equations such as the Richards as well as the Gompertz.
Odour Emissions Following Application of Hog Slurry to Grassland
Posted in: Environment by admin on | No Comments
Particle size and metal distributions in anaerobically digested pig slurry
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Nitrogen Management of Brown Midrib Sorghum X Sudangrass in the Northeastern USA
Posted in: Environment by admin on | No Comments
Impact of earthen waste storage on nitrate concentration of surface water
Posted in: Environment by admin on | No Comments