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Feeding silage to fattening pigs – effects on nitrogen utilization and ammonia losses from fresh manure
SLU Swedish University of Agricultural Sciences, Sweden.
RISE Research Institutes of Sweden, Bioeconomy and Health, Agriculture and Food.
RISE Research Institutes of Sweden, Bioeconomy and Health, Agriculture and Food.ORCID iD: 0000-0002-1260-4835
SLU Swedish University of Agricultural Sciences, Sweden.
2023 (English)In: Acta agriculturae Scandinavica. Section A, Animal science, ISSN 0906-4702, E-ISSN 1651-1972Article in journal (Refereed) Epub ahead of print
Abstract [en]

ABSTRACTThis study evaluated the effect of feeding silage to pigs on nitrogen (N) utilization and ammonia (NH3) volatilization. In total, 128 Yorkshire ? Hampshire (30?110?kg) pigs were fed commercial feed (Control) or commercial feed mixed with dried, milled silage in pelleted form (Pellet-S), fresh, chopped silage (Silage-Ch) or intensively treated silage (Silage-Pr). Silage replaced 20% of the crude protein (g/kg). Diet affected daily N excretion, which was higher for pigs fed Silage-Ch and Silage-Pr than for pigs in the Pellet-S and Control treatments. Ammonium nitrogen (NH4-N) content in the manure and NH3 volatilization from fresh manure were higher for Control pigs than for pigs in the other treatments. Overall, these results show that pre-treatment of silage influences N utilization and excretion. Furthermore, the results indicate that feeding silage to pigs can reduce NH3 volatilization from fresh manure.

Place, publisher, year, edition, pages
Taylor & Francis , 2023.
Keywords [en]
Finishing pig; silage; TMR;nitrogen; ammoniavolatilization
National Category
Animal and Dairy Science
Identifiers
URN: urn:nbn:se:ri:diva-65652DOI: 10.1080/09064702.2023.2225517OAI: oai:DiVA.org:ri-65652DiVA, id: diva2:1779956
Note

This study was funded by the Swedish Research Council forEnvironment,  Agricultural  Science  and  Spatial  Planning(Formas): [grant number 2018-02391].

Available from: 2023-07-05 Created: 2023-07-05 Last updated: 2023-07-05Bibliographically approved

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Salomon, Eva

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