Springer Netherlands
Dordrecht
Springer
10705
10.1007/10705.1573-0867
1385-1314
1573-0867
Nutrient Cycling in Agroecosystems
(formerly Fertilizer Research)
Nutr Cycl Agroecosyst
Life Sciences
Agriculture
SC3
110
110
3
1
1
Special Issue: Efficient use of different sources of nitrogen in agriculture – from theory to practice
16
2018
1
10
2018
1
10
2018
1
2018
Springer Science+Business Media B.V., part of Springer Nature
2018
Tobias
Rütting
Sofia
Delin
Helena
Aronsson
9893
10.1007/s10705-017-9893-3
13
Evaluating the potential of dietary crude protein manipulation in reducing ammonia emissions from cattle and pig manure: A meta-analysis
Original Article
161
175
2017
11
14
2017
1
9
2017
11
14
2017
11
22
Austrian Science Fund
W 1256-G15
The Author(s)
2017
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (
http://creativecommons.org/licenses/by/4.0/
), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Erangu
Purath
Mohankumar
Sajeev
+43 (0)316 380 - 7403
em.sajeev@uni-graz.at
Barbara
Amon
Christian
Ammon
Werner
Zollitsch
Wilfried
Winiwarter
Institute of System Sciences, Innovation and Sustainability Research and FWF-DK Climate Change
University of Graz
Liebiggasse 9/1
8010
Graz
Austria
Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB)
Max-Eyth-Allee 100
14469
Potsdam
Germany
Division of Livestock Sciences, Department of Sustainable Agricultural Systems
University of Natural Resources and Life Sciences (BOKU)
Gregor-Mendel-Straße 33
1180
Vienna
Austria
International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1
2361
Laxenburg
Austria
Institute of Environmental Engineering
University of Zielona Góra
Licealna 9
65-417
Zielona Góra
Poland
Abstract
Dietary manipulation of animal diets by reducing crude protein (CP) intake is a strategic NH3 abatement option as it reduces the overall nitrogen input at the very beginning of the manure management chain. This study presents a comprehensive meta-analysis of scientific literature on NH3 reductions following a reduction of CP in cattle and pig diets. Results indicate higher mean NH3 reductions of 17 ± 6% per %-point CP reduction for cattle as compared to 11 ± 6% for pigs. Variability in NH3 emission reduction estimates reported for different manure management stages and pig categories did not indicate a significant influence. Statistically significant relationships exist between CP reduction, NH3 emissions and total ammoniacal nitrogen content in manure for both pigs and cattle, with cattle revealing higher NH3 reductions and a clearer trend in relationships. This is attributed to the greater attention given to feed optimization in pigs relative to cattle and also due to the specific physiology of ruminants to efficiently recycle nitrogen in situations of low protein intake. The higher NH3 reductions in cattle highlights the opportunity to extend concepts of feed optimization from pigs and poultry to cattle production systems to further reduce NH3 emissions from livestock manure. The results presented help to accurately quantify the effects of NH3 abatement following reduced CP levels in animal diets distinguishing between animal types and other physiological factors. This is useful in the development of emission factors associated with reduced CP as an NH3 abatement option.
Keywords
Manure management
Reduced crude protein
Cattle
Pigs
Dietary manipulation
Meta-analysis
Ammonia abatement
Electronic supplementary material
The online version of this article (
https://doi.org/10.1007/s10705-017-9893-3
) contains supplementary material, which is available to authorized users.