Ammonia and Greenhouse Gas Emissions of a Swine Breeding-Gestation-Farrowing Facility in the Midwestern USA

摘要

Aerial emissions from livestock production continue to be an area of concern for both the potential health and environmental impacts. However, information on gaseous, especially greenhouse gas (GHG) emissions for swine breeding/gestation and farrowing production facilities is meager. A 4300-sow breeding, gestation, and farrowing facility in Iowa was selected for extensive field monitoring. A Mobile Air Emission Monitoring Unit (MAEMU) was installed to monitor the deep-pit breeding-early gestation barn (1800 head), the deep-pit late gestation barn (1800 head), and two shallow-pit (pull-plug) farrowing rooms (40 head per room). This paper reports on data collected from January 12, 2011 to March 31, 2012.