Evaluation of a swine manure odor control additive
May 21, 1987
A 12 week dynamic experiment was conducted on a commercial manure additive. Manure was collected daily from finishing pigs and added to barrels. Odors were analyzed by human sniffers and detector...
Copper and zinc accumulation, profile distribution, and crop removal in coastal plain soils receiving long-term, intensive applications of swine manure
January 1, 1987By Jeffrey M. Novak
Trace metals like copper (Cu) and zinc (Zn) are added to animal feed as dietary supplements, and trace metals not assimilated by the animals gut are excreted in manure. The accumulation and movement...
Dust and bacteria removal equipment for controlling particulates in swine buildings
January 1, 1987
The potential of air ionization to control dust and bacteria in livestock buildings was investigated, using a special chamber within an animal chamber. Insulation panels with exposed aluminium foil...
Model to predict gaseous contaminants in swine confinement buildings
January 1, 1987
A brief review is given of the physiological effects of carbon dioxide, methane, ammonia and hydrogen sulphide on pigs. Manure composition is discussed in terms of broad chemical classes such as...
Soybean oil effects on nursery air quality and pig performance
January 1, 1986
Three nursery trials were conducted to determine effects on room air quality and pig performance of adding 5% soyabean oil to starter diets. Settled dust was reduced 45-47% by adding oil. Total...
Characteristics of aerial dust in swine finishing houses
January 1, 1986
Aerial dust from 11 commercial pig finishing houses, 4 with mechanical and 7 with natural ventilation, was sampled during an 8-month period. Mass concentrations of up to 38 mg/m3 were correlated with...
Solutions to reduce ammonia levels in swine facilities
January 1, 1985
Six case studies are presented for reducing ammonia levels in pig housing of various designs and construction. The pig building's minimum ventilation rate should maintain a 50-70% relative humidity...
Influence of environmental factors on concentrations and inorganic content of aerial dust in swine finishing buildings
January 1, 1985
The total mass concn. of aerial dust particles in 11 pig finishing units averaged 8.1 mg/msuperscript 3 during a 9-month survey and exceeded the 15 mg/msuperscript 3 US Occupational Safety and Health...
Air quality in a swine nursery
January 1, 1985
The effects of ventilation rate on air quality were investigated in 2 experiments, one with reduced ventilation and one with a cold air draught. Carbon dioxide, ammonia, hydrogen sulphide,...
Field estimates of ammonia volatilization from swine manure by a simple micrometeorological technique
January 1, 1985
An existing numerical model for particle diffusion into air from ground-based sources was recalculated for circular source plots of 7 m diameter. Results showed that a satisfactory relationship...
Air quality in farrowing barns
January 1, 1984
Concentrations and production rates of major ambient contaminants (moisture, dust particles, carbon dioxide, ammonia and hydrogen sulphide), were established in 5 farrowing rooms. Comparison between...
Swine lagoon effluent applied to hardwood seedlings
January 1, 1983By R. O. Hegg
This report is a summary of a project to apply swine lagoon effluent onto three hardwood species (yellow-poplar, green ash, and eastern cottonwood) at five application rates (0, 20, 47, 74, and 144 cm/yr).
