Evolution of temperature and chemical parameters during composting of the pig slurry solid fraction amended with natural zeolite
Posted in: Environment by admin on January 1, 2005 | No Comments
Concentrations of additive arsenic in Beijing pig feeds and the residues in pig manure
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Study: Enzyme in Diet Helps Hogs Use More P
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At the Prairie Swine Center, studies are being done to discover how much phosphorus contained in rations is simply wasted. Results show that about 70% of the phosphorus contained in feed is simply evacuated without being processed. This usually ends up in fields but luckily Saskatchewan soils tend to be phosphorus deficient so does not pose an environmental risk. It does, however, add additional costs to hog producers. They must add artificially produced phosphorus to their feed, which is expensive. The researchers at the Prairie Swine Center are working on the use of an enzyme, which, when added to the feed, helps animals digest the naturally occurring phosphorus contained in their diets. Results from this research have shown that it is possible to get the same performance in animal nutrition with the enzyme without adding phosphorus. Using this enzyme, producers see a net benefit of around $0.33/pig.
Applying Alternative Technologies To Cafos: A Case Study
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Greenhouse Gas Mitigation Program – Canadian Pork Council
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Improvements in pork production efficiency have always been important to maintaining a viable and competitive Canadian pork sector. Because increasing production costs often outstrip increases in farm gate commodity values, improved production efficiencies assume an important role in maintaining farm profitability. In the past, combining environmental sustainability with positive economic spin-offs for the farm has been difficult. In many cases, pork producers have implemented conservation practices, with little return on investment. An overall industry willingness to provide this societal service has resulted in the generation of a forward thinking and environmentally responsible industry. The emergence of a new area of environmental sustainability, greenhouse gas management, has the potential to offer some quantity of cost recovery for environmental sustainability and potentially increase farm income.
COVER CROP/DAIRY MANURE MANAGEMENT SYSTEMS: WATER QUALITY AND SOIL SYSTEM IMPACTS
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