From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry

The environmental impact of livestock waste has driven the need for nutritional strategies to enhance digestive efficiency in pigs, aiming to reduce nutrient excretion and associated emissions of pollutants like ammonia (NH 3 ) and greenhouse gases (GHG). This study investigated the effects of dieta...

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Authors: Fuertes Gimeno, Esperanza, Sarri Espinosa, Laura, Carnicero, Rodrigo, Perez Calvo, Estefania, Calderón, Alvaro, Balcells Terés, Joaquim, Seradj, Ahmad Reza, Cantero Martınez, Carlos, Fernandez-Ortega, Jesús, de la Fuente Oliver, Gabriel
Format: article
Publication Date:2025
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/467456
Online Access:https://doi.org/10.3389/fanim.2025.1508660
https://hdl.handle.net/10459.1/467456
Access Level:Open access
Keyword:Ammonia emission rate
Crude protein
Food additives
Pig slurry
Field application
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spelling From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurryFuertes Gimeno, EsperanzaSarri Espinosa, LauraCarnicero, RodrigoPerez Calvo, EstefaniaCalderón, AlvaroBalcells Terés, JoaquimSeradj, Ahmad RezaCantero Martınez, CarlosFernandez-Ortega, Jesúsde la Fuente Oliver, GabrielAmmonia emission rateCrude proteinFood additivesPig slurryField applicationThe environmental impact of livestock waste has driven the need for nutritional strategies to enhance digestive efficiency in pigs, aiming to reduce nutrient excretion and associated emissions of pollutants like ammonia (NH 3 ) and greenhouse gases (GHG). This study investigated the effects of dietary crude protein (CP) reduction by 1.5%, combined with supplementation of a dietary treatment that included feed additives and higher soluble fiber levels, on nutrient digestibility, slurry composition, and emissions across growing and finishing phases. Eighty male pigs were assigned to four different diets in a 13-week trial under a 2 × 2 factorial design: standard protein (SP) and low protein (LP) diets, with or without the dietary treatment. Key measurements included slurry composition, NH 3 -N and CH 4 emissions, and crop yield when slurry was applied as fertilizer. The low-protein diet supplemented with additives (LPA) significantly reduced slurry pH (P ≤ 0.001) and urinary NH 3 -N excretion(interaction, P = 0.03), improving nutrient digestibility and lowering organic matter content in slurry (P < 0.05). NH3 emissions from the room and slurry pit decreased by over 38%, while CH4 emissions, although higher in LP diets, were mitigated with the LPA diet. Field application of slurry as fertilizer resulted interns favoring sustainable wheat production, with increased yield and nitrogen use efficiency, alongside reduced CH4 emissions (P < 0.001). These findings underscore the potential of combined dietary strategies to mitigate environmental impacts while enhancing agricultural sustainability.The author(s) declare financial support was received for the research, authorship, and/or publication of this article. Funding was provided by DSM-Firmenich. EF was the recipient of a grant from Agencia de Gestión de Ayudas Universitarias y de Investigación of Spain (FI-SDUR 2020/00031), and together with LS are currently receiving Investigo funding (2022 INV-1 00010).The author(s) declare financial support was received for the research, authorship, and/or publication of this article. Funding was provided by DSM-Firmenich. EF was the recipient of a grant from Agencia de Gestión de Ayudas Universitarias y de Investigación of Spain (FI-SDUR 2020/00031), and together with LS are currently receiving Investigo funding (2022 INV-1 00010).Frontiers MediaFrontiers Media2025info:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.3389/fanim.2025.1508660https://hdl.handle.net/10459.1/467456reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3389/fanim.2025.1508660Frontiers in Animal Science, 2025, vol. 6cc-by, (c) Fuertes et al., 2025info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/https://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/4674562026-05-29T05:05:01Z
dc.title.none.fl_str_mv From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
title From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
spellingShingle From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
Fuertes Gimeno, Esperanza
Ammonia emission rate
Crude protein
Food additives
Pig slurry
Field application
title_short From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
title_full From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
title_fullStr From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
title_full_unstemmed From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
title_sort From feed to field: effect of dietary protein level and use of a blend of feed additives on gaseous emissions from growing-finishing pig slurry
dc.creator.none.fl_str_mv Fuertes Gimeno, Esperanza
Sarri Espinosa, Laura
Carnicero, Rodrigo
Perez Calvo, Estefania
Calderón, Alvaro
Balcells Terés, Joaquim
Seradj, Ahmad Reza
Cantero Martınez, Carlos
Fernandez-Ortega, Jesús
de la Fuente Oliver, Gabriel
author Fuertes Gimeno, Esperanza
author_facet Fuertes Gimeno, Esperanza
Sarri Espinosa, Laura
Carnicero, Rodrigo
Perez Calvo, Estefania
Calderón, Alvaro
Balcells Terés, Joaquim
Seradj, Ahmad Reza
Cantero Martınez, Carlos
Fernandez-Ortega, Jesús
de la Fuente Oliver, Gabriel
author_role author
author2 Sarri Espinosa, Laura
Carnicero, Rodrigo
Perez Calvo, Estefania
Calderón, Alvaro
Balcells Terés, Joaquim
Seradj, Ahmad Reza
Cantero Martınez, Carlos
Fernandez-Ortega, Jesús
de la Fuente Oliver, Gabriel
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ammonia emission rate
Crude protein
Food additives
Pig slurry
Field application
topic Ammonia emission rate
Crude protein
Food additives
Pig slurry
Field application
description The environmental impact of livestock waste has driven the need for nutritional strategies to enhance digestive efficiency in pigs, aiming to reduce nutrient excretion and associated emissions of pollutants like ammonia (NH 3 ) and greenhouse gases (GHG). This study investigated the effects of dietary crude protein (CP) reduction by 1.5%, combined with supplementation of a dietary treatment that included feed additives and higher soluble fiber levels, on nutrient digestibility, slurry composition, and emissions across growing and finishing phases. Eighty male pigs were assigned to four different diets in a 13-week trial under a 2 × 2 factorial design: standard protein (SP) and low protein (LP) diets, with or without the dietary treatment. Key measurements included slurry composition, NH 3 -N and CH 4 emissions, and crop yield when slurry was applied as fertilizer. The low-protein diet supplemented with additives (LPA) significantly reduced slurry pH (P ≤ 0.001) and urinary NH 3 -N excretion(interaction, P = 0.03), improving nutrient digestibility and lowering organic matter content in slurry (P < 0.05). NH3 emissions from the room and slurry pit decreased by over 38%, while CH4 emissions, although higher in LP diets, were mitigated with the LPA diet. Field application of slurry as fertilizer resulted interns favoring sustainable wheat production, with increased yield and nitrogen use efficiency, alongside reduced CH4 emissions (P < 0.001). These findings underscore the potential of combined dietary strategies to mitigate environmental impacts while enhancing agricultural sustainability.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.3389/fanim.2025.1508660
https://hdl.handle.net/10459.1/467456
url https://doi.org/10.3389/fanim.2025.1508660
https://hdl.handle.net/10459.1/467456
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3389/fanim.2025.1508660
Frontiers in Animal Science, 2025, vol. 6
dc.rights.none.fl_str_mv cc-by, (c) Fuertes et al., 2025
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/4.0/
https://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by, (c) Fuertes et al., 2025
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
Frontiers Media
publisher.none.fl_str_mv Frontiers Media
Frontiers Media
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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