Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids

In Iberian pig outdoor production, pigs are fed equilibrated diets until the final fattening period when grazing pigs consume mainly acorns from oak trees. Acorns are rich in energy but poor in crude protein where lysine is the first limiting amino acid (AA). Net portal appearance (NPA) is very usef...

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Autores: Lachica, M., Rodríguez-López, José Miguel, González-Valero, Lucrecia, Fernández-Fígares Ibáñez, Ignacio
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2018
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202069
Acesso em linha:http://hdl.handle.net/10261/202069
Access Level:Acceso aberto
Palavra-chave:Pig
Net portal appearance
Portal-drained viscera
Acorn
Amino acid
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spelling Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acidsLachica, M.Rodríguez-López, José MiguelGonzález-Valero, LucreciaFernández-Fígares Ibáñez, IgnacioPigNet portal appearancePortal-drained visceraAcornAmino acidIn Iberian pig outdoor production, pigs are fed equilibrated diets until the final fattening period when grazing pigs consume mainly acorns from oak trees. Acorns are rich in energy but poor in crude protein where lysine is the first limiting amino acid (AA). Net portal appearance (NPA) is very useful to ascertain AA available for liver and peripheral tissues. The aim of this study was to determine NPA of AA in Iberian gilts fed with acorns and to ascertain if there was an effect of acorn feeding over time. Two sampling periods were carried out (after one day and after one week of acorn feeding) with six gilts (34 kg average BW) set up with three catheters: in carotid artery and portal vein for blood sampling, and ileal vein for a marker infusion to measure portal plasma flow (PPF). Pigs were fed at 2.5 × ME for maintenance a standard diet in two meals, at 09:00 (0.25) and 15:00 h (the remaining 0.75). The day previous to first sampling, pig diet was replaced by 2.4 kg of acorn. A serial blood collection was done at −5 min, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5 and 6 h after feeding 0.25 of total daily acorn ration. Following identical protocol, one week later the second sampling was done. NPA of sum of essential AA (EAA) was poor. Although increased NPA of histidine (P < 0.001), leucine, phenylalanine and valine (0.05 < P < 0.08) was found after one week of acorn consumption, the sum of EAA did not change. Furthermore, fractional absorption (NPA/AA intake) of EAA, non-essential AA (NEAA) and total AA was 97, 44 and 49% lower, respectively, at the beginning of eating acorn than a week later. Supplementation, with some of the EAA and NEAA to Iberian pigs during the grazing period would be beneficial to overcome the increased portal-drained viscera (PDV) utilization of AA observed in the present study.This research was supported by grants no. AGL 2006-05937/GAN and AGL 2009-08916 from the Ministerio de Educación y Ciencia (Spain). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.PeerJMinisterio de Educación y Ciencia (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020182020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/202069reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.7717/peerj.6137Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2020692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
title Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
spellingShingle Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
Lachica, M.
Pig
Net portal appearance
Portal-drained viscera
Acorn
Amino acid
title_short Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
title_full Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
title_fullStr Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
title_full_unstemmed Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
title_sort Iberian pig adaptation to acorn consumption: II. Net portal appearance of amino acids
dc.creator.none.fl_str_mv Lachica, M.
Rodríguez-López, José Miguel
González-Valero, Lucrecia
Fernández-Fígares Ibáñez, Ignacio
author Lachica, M.
author_facet Lachica, M.
Rodríguez-López, José Miguel
González-Valero, Lucrecia
Fernández-Fígares Ibáñez, Ignacio
author_role author
author2 Rodríguez-López, José Miguel
González-Valero, Lucrecia
Fernández-Fígares Ibáñez, Ignacio
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Pig
Net portal appearance
Portal-drained viscera
Acorn
Amino acid
topic Pig
Net portal appearance
Portal-drained viscera
Acorn
Amino acid
description In Iberian pig outdoor production, pigs are fed equilibrated diets until the final fattening period when grazing pigs consume mainly acorns from oak trees. Acorns are rich in energy but poor in crude protein where lysine is the first limiting amino acid (AA). Net portal appearance (NPA) is very useful to ascertain AA available for liver and peripheral tissues. The aim of this study was to determine NPA of AA in Iberian gilts fed with acorns and to ascertain if there was an effect of acorn feeding over time. Two sampling periods were carried out (after one day and after one week of acorn feeding) with six gilts (34 kg average BW) set up with three catheters: in carotid artery and portal vein for blood sampling, and ileal vein for a marker infusion to measure portal plasma flow (PPF). Pigs were fed at 2.5 × ME for maintenance a standard diet in two meals, at 09:00 (0.25) and 15:00 h (the remaining 0.75). The day previous to first sampling, pig diet was replaced by 2.4 kg of acorn. A serial blood collection was done at −5 min, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5 and 6 h after feeding 0.25 of total daily acorn ration. Following identical protocol, one week later the second sampling was done. NPA of sum of essential AA (EAA) was poor. Although increased NPA of histidine (P < 0.001), leucine, phenylalanine and valine (0.05 < P < 0.08) was found after one week of acorn consumption, the sum of EAA did not change. Furthermore, fractional absorption (NPA/AA intake) of EAA, non-essential AA (NEAA) and total AA was 97, 44 and 49% lower, respectively, at the beginning of eating acorn than a week later. Supplementation, with some of the EAA and NEAA to Iberian pigs during the grazing period would be beneficial to overcome the increased portal-drained viscera (PDV) utilization of AA observed in the present study.
publishDate 2018
dc.date.none.fl_str_mv 2018
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/202069
url http://hdl.handle.net/10261/202069
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.7717/peerj.6137
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv PeerJ
publisher.none.fl_str_mv PeerJ
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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