The use of diet manipulation promises to be a useful tool for reduction of ammonia (NH3) emission and concentration levels in growing/finishing swine buildings. A laboratory study was conducted to evaluate emission of NH3, H2S, CH4 and CO2 from a manure pit as affected by feeding of amino acid-supplemented diets versus conventional diets of various crude protein levels to growing/finishing pigs. The results from the first experiment in the series suggest that the emission of ammonia is greater for a high protein diet (16% CP), and lowest for the supplemented diet at a 10% CP level. Mean ammonia levels measured varied from 11.8-19.5 ppm, depending upon time of sample over the experimental period and dietary treatment. The 16% CP diet had 26.3% higher mean NH3 concentration as compared to the reduced protein (10% CP) mean concentration. Further experiments are planned as a part of this project to assess the effects of additives on gaseous from swine manure.
|Original language||English (US)|
|Journal||Paper - American Society of Agricultural Engineers|
|State||Published - 1997|
|Event||Proceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3) - Minneapolis, MN, USA|
Duration: Aug 10 1997 → Aug 14 1997
ASJC Scopus subject areas
- Agricultural and Biological Sciences (miscellaneous)