Limitations of guidelines governing rates of application of pig manure to land

Posted in: Environment by admin on January 1, 1978 | No Comments

Solar Assisted Heat Pump System for Swine Housing

Posted in: Energy by admin on January 1, 1977 | No Comments

Impact of intensive animal production on human ecology

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Animal populations provide reservoirs of many diseases transmissible to man. Moreover, animals may contribute to the inorganic pollution of the ecosystem, including natural resources and nutritional environment. The interactions between man through urbanization, management of domestic animals and wildlife on the one hand, and the dynamics of animals populations, their products and wastes on the other, form a most important complex of benefits and hazards in human ecology.

In planning comprehensive ecological approaches in (a) human health and wildlife; (b) human health and animals in rural areas; and (c) human health and animals in urban areas, major categories of animals have to be considered, namely, (a) animal industries; (b) animals used for work and transportation; (c) wildlife; and (d) pet animals.

Depending on the prevailing ecological conditions, these categories of animals play a different role in primary and secondary contamination (as sources of infection, injury, poisoning and chemical pollution) of our environment, including food. Hazards and benefits must therefore be seen for the whole cycle comprising animal feed, the live animal, foodstuff, dead animal carcasses, offal and manures.

Measurement of odour intensity in farming situations

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Odour Characterization and Control

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This is a compilation of the papers presented at an International Seminar in the EEC Programme of Co-ordination of Research on Effluents from Livestock, held at the Rijksstation voor Landbouwtechnie, Merelbeke/Gent, Belgium, May 10-13, 1976.

Part 1: Characterization of Odours from Animal Production
Part 2: Odour Control Techniques
Part 3: Legislation Related to Odours from Animal Production
Part 4: Miscellaneous

Potential health hazards to agricultural workers in swine confinement buildings.

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Waste Treatment in Agriculture.

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The principles of treatment for agricultural waste are presented from the basics. The microbial life in the waste is presented with the microbial metabolisms and the degradation done on organic matter and other compounds, with the potential for pollution and also the potential for waste treatment given specific conditions. The properties of the farm wastes are also discussed related to animal housing, waste production and disposal. Different processes for the prevention of the microbial growth (steam sterilization, incineration, wet-air oxidation, pyrolysis and hydrogenation) are presented along with systems designed for product recovery (such as manure drying, chemical extraction methods, composting). Aerobic and anaerobic methods are also discussed with the specific treatment and control of the degradation conditions.

This book contains all the basic and simplified information to well understand the processes occurring in agricultural waste treatment, processes that are basic biological reactions between the bacteria and the manure components. Most publication presenting the specific aspects of treatment equipment or procedures don’t present those processes.

Non-pesticidal Air Pollution From Agricultural Processes

Posted in: Environment by admin on January 1, 1976 | No Comments

Modern animal production involves concentrating large populations in relatively limited areas to economize feeding and handling. The corresponding increase in animals wastes has intensified the air pollution problem from that of earlier, less efficient production methods.

Management of Odors Associated with Livestock Production

Posted in: Environment by admin on January 1, 1975 | No Comments

See the summary of: Controlling Odors from Livestock Production Facilities: State-Of-The-Art. 1981. Miner, J.R. But this publication doesn’t cover the management practices and design to control odors.

The Use of Dried Bacteria Cultures and Enzymes to Control Odor and Liquefy Organic Waste Found in Hog, Dairy and Poultry Producing Units as Well as Lagoons

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Big Dutchman Improved Odor Control has been tested in four separate tests to evaluate the capacity of the product in reducing odours and liquefying the organic waste fund in the slurry. Visible changes in the manure could be observed and analysis done showed that the product would bring liquefaction of hog manure.

No real analysis is done on the odour at the exception probably of a qualitative evaluation for which no results are presented. This test was done only in two swine buildings, a treated one and a non-treated one, the control. This is not sufficient to be able to draw conclusion.