Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters

[EN] Olive oil extraction generates large amounts of a highly pollutant by-product called olive cake (OC), and its use in ruminant feeding could be an alternative. This study was designed to evaluate the effects of partially replacing forage by crude OC (COC) in a mixed dairy diet on rumen fermentat...

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Autores: García Rodríguez, Jairo, Mateos Álvarez, Iván, Saro Higuera, Cristina, González Álvarez, Jesús Salvador, Carro Travieso, María Dolores, Ranilla García, María José
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Universidad de León
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:dnet:buleria_____::efb345eb6d2276c8b1270eed59e41f7c
Acesso em linha:https://www.mdpi.com/2076-2615/10/12/2235
https://hdl.handle.net/10612/28681
Access Level:acceso abierto
Palavra-chave:Veterinaria
Crude olive cake
Rusitec
Dairy sheep
qPCR
ARISA
Microbial protein synthesis
3109 Ciencias Veterinarias
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spelling Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermentersGarcía Rodríguez, JairoMateos Álvarez, IvánSaro Higuera, CristinaGonzález Álvarez, Jesús SalvadorCarro Travieso, María DoloresRanilla García, María JoséVeterinariaCrude olive cakeRusitecDairy sheepqPCRARISAMicrobial protein synthesis3109 Ciencias Veterinarias[EN] Olive oil extraction generates large amounts of a highly pollutant by-product called olive cake (OC), and its use in ruminant feeding could be an alternative. This study was designed to evaluate the effects of partially replacing forage by crude OC (COC) in a mixed dairy diet on rumen fermentation and microbial populations in Rusitec fermenters. The COC replaced 33% of the forage (66% maize silage and 33% barley straw) and was included at 16.6% of the total diet. Four fermenters were used in a cross-over design with two 13-day incubation periods. Experimental diets had a 50:50 forage-to-concentrate ratio and were formulated to contain the same protein (16.0%) and neutral detergent fiber (32.5%) levels. Compared with control fermenters, those fed the COC diet showed greater (p ≤ 0.02) pH (6.07 vs. 6.22), diet disappearance (0.709 vs. 0.748), and butyrate proportions (18.0 vs. 19.4), but there were no differences in volatile fatty acids and ammonia production. Microbial growth, bacterial diversity, protozoal abundance, and relative abundance of fungi and archaea were unaffected by diet, although the solid phase of COC-fed fermenters showed greater (p = 0.01) bacterial abundance than control ones. Results indicate that COC could replace 33% of the forage in a mixed dairy diet.SIThis research was funded by Ministerio de Ciencia, Innovación y Universidades (Project AGL2016-75322-C2-2-R). J.G.-R. was supported by a pre-doctoral contract funded by Universidad de León (Programa propio de investigación).MDPIProducción AnimalFacultad de Veterinaria2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://www.mdpi.com/2076-2615/10/12/2235https://hdl.handle.net/10612/28681reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientado a los Retos de la Sociedad/AGL2016-75322-C2-2-Rhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:buleria_____::efb345eb6d2276c8b1270eed59e41f7c2026-06-24T12:43:27Z
dc.title.none.fl_str_mv Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
title Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
spellingShingle Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
García Rodríguez, Jairo
Veterinaria
Crude olive cake
Rusitec
Dairy sheep
qPCR
ARISA
Microbial protein synthesis
3109 Ciencias Veterinarias
title_short Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
title_full Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
title_fullStr Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
title_full_unstemmed Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
title_sort Replacing forage by crude olive cake in a dairy sheep diet: effects on ruminal fermentation and microbial populations in rusitec fermenters
dc.creator.none.fl_str_mv García Rodríguez, Jairo
Mateos Álvarez, Iván
Saro Higuera, Cristina
González Álvarez, Jesús Salvador
Carro Travieso, María Dolores
Ranilla García, María José
author García Rodríguez, Jairo
author_facet García Rodríguez, Jairo
Mateos Álvarez, Iván
Saro Higuera, Cristina
González Álvarez, Jesús Salvador
Carro Travieso, María Dolores
Ranilla García, María José
author_role author
author2 Mateos Álvarez, Iván
Saro Higuera, Cristina
González Álvarez, Jesús Salvador
Carro Travieso, María Dolores
Ranilla García, María José
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Producción Animal
Facultad de Veterinaria
dc.subject.none.fl_str_mv Veterinaria
Crude olive cake
Rusitec
Dairy sheep
qPCR
ARISA
Microbial protein synthesis
3109 Ciencias Veterinarias
topic Veterinaria
Crude olive cake
Rusitec
Dairy sheep
qPCR
ARISA
Microbial protein synthesis
3109 Ciencias Veterinarias
description [EN] Olive oil extraction generates large amounts of a highly pollutant by-product called olive cake (OC), and its use in ruminant feeding could be an alternative. This study was designed to evaluate the effects of partially replacing forage by crude OC (COC) in a mixed dairy diet on rumen fermentation and microbial populations in Rusitec fermenters. The COC replaced 33% of the forage (66% maize silage and 33% barley straw) and was included at 16.6% of the total diet. Four fermenters were used in a cross-over design with two 13-day incubation periods. Experimental diets had a 50:50 forage-to-concentrate ratio and were formulated to contain the same protein (16.0%) and neutral detergent fiber (32.5%) levels. Compared with control fermenters, those fed the COC diet showed greater (p ≤ 0.02) pH (6.07 vs. 6.22), diet disappearance (0.709 vs. 0.748), and butyrate proportions (18.0 vs. 19.4), but there were no differences in volatile fatty acids and ammonia production. Microbial growth, bacterial diversity, protozoal abundance, and relative abundance of fungi and archaea were unaffected by diet, although the solid phase of COC-fed fermenters showed greater (p = 0.01) bacterial abundance than control ones. Results indicate that COC could replace 33% of the forage in a mixed dairy diet.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.mdpi.com/2076-2615/10/12/2235
https://hdl.handle.net/10612/28681
url https://www.mdpi.com/2076-2615/10/12/2235
https://hdl.handle.net/10612/28681
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientado a los Retos de la Sociedad/AGL2016-75322-C2-2-R
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad de León
instname_str Universidad de León
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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