From the point of view of biogeochemistry, manure is a complex of organic matter containing
minor minerals. When manure is excreted by animals, it undergoes a series of reactions …

Intensification increases the environmental impact of livestock production systems. Efforts to
recycle nutrients in livestock manure for crop production will effectively reduce several …

Nitrous oxide (N2O) emissions from concentrated animal feeding operations, including cattle
feedyards, have become an important research topic. However, there are limitations to …

The moisture and manure contents of soils at cattle feedlot surfaces vary spatiotemporally
and likely are important factors in the persistence of Escherichia coli O157 in these soils …

Beef cattle feedlots are major sources of criteria air pollutants in the United States. To aid
stakeholders in air quality modeling, emissions factors for animal waste-producing facilities …

Aims: This study evaluated the effect of anaerobic digestion at 22, 38 and 55° C on odour,
coliforms and chlortetracycline (CTC) in swine manure or monensin (MON) in cattle manure …

The objective was to measure effects of cooling technique (shade vs. water sprinklers) on
performance, behavior, physiology, and the environmental effect of 40 Holstein heifers …

Odorous air emissions from confined animal feeding operation are causing public nuisance.
Accordingly, different odor mitigation technologies were designed, developed, and …

Waste management practices of solid dairy manures were evaluated under controlled
conditions to study gas transport and emission inside manure piles. Three applied stresses …

As an important source of malodor, the odor gases emitted from public toilet significantly
interfered the air quality of living surroundings, resulting in environmental problem which …