Ammonia and greenhouse gas emissions from dairy freestall barn manure

Eileen Fabian Wheeler, M. Arlene Adviento-Borbe, Patrick A. Topper, Neil E. Brown, Gabriella Varga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Lactating cow trials were conducted to evaluate the impact of precision-fed diets at 16.5% crude protein but differing in silage source (alfalfa-corn vs. grass-corn or all-corn) and corn grain grind (fine vs. coarse) on emissions of ammonia (NH3), and greenhouse gases (GHG) [carbon dioxide (CO 2), methane (CH4) and nitrous oxide (N20)]. Manure on the 120-cow freestall barn floor with gas fluxes measured at 80 locations over a 12-hour period using a non-steady-state flux chamber and an infrared photoacoustic gas analyzer during 18 trial days over a 6-month period. Air and manure temperatures were positively and highly correlated with emissions of NH3, CO2 and CH4 NH3 (g AU 1 d1) = 1.7 + 0.12*Tair (°C) [R 2=0.80] for indoor air temperatures (Tair) over the range of-5 to 32°C (1AU = 500 kg). Ammonia, CO2 and CH4 gas emissions were controlled to some extent by microbial activity and similar environmental factors. N2O fluxes remained <0.1 g AU1 d1. All gas fluxes were similar (p=0.054 to 0.860) regardless of silage source and corn grind. Highest average NH3 and CH4 fluxes were measured in the all-corn silage diet (also coincided with the higher environment temperature trials) with 6.3 g ALT1 d1 for NH3 and 3.5 g AU1 d1 for CH4. The alfalfa-corn diet had the highest average C02 emissions (111 g AU1 d1).

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
PublisherAmerican Society of Agricultural and Biological Engineers
Pages4552-4566
Number of pages15
ISBN (Print)9781605605364
StatePublished - Jan 1 2008
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008 - Providence, RI, United States
Duration: Jun 29 2008Jul 2 2008

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
Volume8

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008
CountryUnited States
CityProvidence, RI
Period6/29/087/2/08

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)

Fingerprint Dive into the research topics of 'Ammonia and greenhouse gas emissions from dairy freestall barn manure'. Together they form a unique fingerprint.

  • Cite this

    Wheeler, E. F., Adviento-Borbe, M. A., Topper, P. A., Brown, N. E., & Varga, G. (2008). Ammonia and greenhouse gas emissions from dairy freestall barn manure. In American Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008 (pp. 4552-4566). (American Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008; Vol. 8). American Society of Agricultural and Biological Engineers.