Sustainable Dairy Production Housing / Manure System: Compost Bedded Loose Housing Dairy Barn


What Are Compost Bedded Dairy Barns?

In the U.S., the first compost bedded loose housing (CBP) dairy barns were developed by Virginia dairy producers in the 1980’s to increase cow comfort and longevity.  The key component of a CBP dairy barn is a large, open resting area generally bedded with sawdust or dry, fine wood shavings that is tilled to support aerobic composting.…

Wet Scrubbers for Cleaning Air Emissions from Animal Housing Curriculum Materials

Air emissions from animal housing systems are being examined more closely for ways to mitigate potentially harmful gases. Wet scrubbers are one way to remove pollutants from air being exhausted from mechanically ventilated buildings.  The materials on this page were developed to assist educators and professors who include wet scrubbers as a topic in their classrooms or educational programs.…

Dietary Manipulation to Reduce Ammonia Emission from High-Rise Layer Houses

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Poultry (Layers)
Use Area: Animal Housing
Technology Category: Ration Manipulation
Air Mitigated Pollutants: Ammonia

System Summary

Ammonia (NH3) generation from poultry production is a result of microbial decomposition of uric acid and undigested nitrogen in bird feces.…

Mitigation of Odor and Pathogens from CAFOs with UV/TIO2: Exploring Cost Effectiveness

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Swine, Poultry
Use Area: Animal Housing
Technology Category: Air Treatment (UV Photocatalysis)
Air Mitigated Pollutants: Volatile Organic Compounds, Odor, Pathogens

System Summary

Odor and target VOCs responsible for livestock odor are mitigated by UV-185 nm (‘deep’ UV) in presence of TiO2 as a catalyst into less odorous or odorless products such as CO2 and H2O.…

Effects of Dietary Manipulation on Ammonia Emissions

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Swine
Use Area: Animal Housing
Technology Category: Diet Modification
Air Mitigated Pollutants: Ammonia

System Summary

Dietary manipulation, such as lowering crude protein with amino acid supplementation or fiber addition, is an effective method to decrease ammonia emissions from swine finishing facilities.…