In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid

Detalhes bibliográficos
Autor(a) principal: Díaz, Tatiana García
Data de Publicação: 2018
Outros Autores: Branco, Antonio Ferriani, Ítavo, Luís Carlos Vinhas, Santos, Geraldo Tadeu dos, Carvalho, Silvana Teixeira, Teodoro, Ana Lúcia, Oliveira, Ronaldo Lopes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29652
Resumo: The aim of this study was to evaluate the effect of increasing levels of cashew nut shell liquid (CNSL) in ruminant diets on in vitro dry matter digestibility (IVDMD), gas production kinetics, ruminal fermentation parameters, ammoniacal nitrogen concentration (NH3-N), and pH of the artificial rumen contents. The experimental design was completely randomized in a factorial 5 x 4 + 1 design, with five concentrate levels (200, 400, 600, 800, and 1,000 g kg-1 DM) and four CNSL levels (0, 0.3, 0.6, and 1.2 g kg-1 DM), as well as a control diet comprising only whole-plant corn silage, totaling 21 treatments. The inclusion of concentrate linearly increased IVDMD, while CNSL levels showed a quadratic effect, with the maximum estimated at 0.5 g kg-1 of CNSL. The total gas production, the disappearance of the substrate, the fraction of slow degradation (fraction VF2), and the respective degradation rate (fraction µ2) linearly increased with increasing levels of concentrate in the diet. Increasing concentrate levels resulted in a linear increase in the concentration of NH3-N and a reduction in the pH of the rumen liquid. Increasing CNSL levels decreased the concentration of NH3-N and increased the ruminal pH. The inclusion of 0.5 g CNSL kg-1 in the ruminant diets improved IVDMD, without altering the kinetic parameters of ruminal fermentation. The addition of CNSL to ruminant diets reduces ammoniacal nitrogen production and can avoid drastic reductions in ruminal pH, favoring better fermentation in the rumen.
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spelling In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquidCinética da produção de gases e digestibilidade in vitro em dietas para ruminantes com diferentes níveis de líquido de casca de castanha de cajuAmmoniaAnacardic acidCardanolCardolGas production.AmôniaÁcido anacárdicoCardanolCardolProdução de gás.The aim of this study was to evaluate the effect of increasing levels of cashew nut shell liquid (CNSL) in ruminant diets on in vitro dry matter digestibility (IVDMD), gas production kinetics, ruminal fermentation parameters, ammoniacal nitrogen concentration (NH3-N), and pH of the artificial rumen contents. The experimental design was completely randomized in a factorial 5 x 4 + 1 design, with five concentrate levels (200, 400, 600, 800, and 1,000 g kg-1 DM) and four CNSL levels (0, 0.3, 0.6, and 1.2 g kg-1 DM), as well as a control diet comprising only whole-plant corn silage, totaling 21 treatments. The inclusion of concentrate linearly increased IVDMD, while CNSL levels showed a quadratic effect, with the maximum estimated at 0.5 g kg-1 of CNSL. The total gas production, the disappearance of the substrate, the fraction of slow degradation (fraction VF2), and the respective degradation rate (fraction µ2) linearly increased with increasing levels of concentrate in the diet. Increasing concentrate levels resulted in a linear increase in the concentration of NH3-N and a reduction in the pH of the rumen liquid. Increasing CNSL levels decreased the concentration of NH3-N and increased the ruminal pH. The inclusion of 0.5 g CNSL kg-1 in the ruminant diets improved IVDMD, without altering the kinetic parameters of ruminal fermentation. The addition of CNSL to ruminant diets reduces ammoniacal nitrogen production and can avoid drastic reductions in ruminal pH, favoring better fermentation in the rumen.O objetivo deste estudo foi avaliar o efeito do líquido de casca de castanha de caju (LCC) na dieta de ruminantes com níveis crescentes de concentrado sobre a digestibilidade in vitro da matéria seca (DIVMS), cinética de produção de gases e parâmetros ruminais, concentração de nitrogênio amoniacal (N-NH3) e o pH do conteúdo do rúmen artificial. O delineamento experimental foi inteiramente casualizado, em arranjo factorial 5x4+1, com cinco níveis de concentrado (200, 400, 600, 800 e 1000 g kg-1MS) e quatro níveis de LCC (0, 0,3, 0,6 e 1,2 g kg-1 MS), e uma dieta controle, composta apenas por silagem de milho planta inteira, totalizando 21 tratamentos. A inclusão de concentrado aumentou linearmente a DIVMS, enquanto que os níveis LCC mostraram um efeito quadrático, com o máximo estimado de 0,5 g kg-1 de LCC. A produção total de gás, o desaparecimento do substrato, a fracção de degradação lenta (fracção VF2) e a respectiva taxa de degradação (fracção ?2) aumentaram de forma linear com aumento crescente dos níveis de concentrado na dieta. O aumento dos níveis de concentrado resultou em aumento linear na concentração de N-NH3 e na redução no pH do líquido ruminal. O aumento da concentração LCC reduziu os níveis de N-NH3 e aumentou o pH do rúmen. A inclusão de 0,5 g kg-1 de LCC na dieta dos ruminantes melhorou a DIVMS, sem alterar os parâmetros cinéticos de fermentação ruminal. A adição de LCC na dieta de ruminantes reduz a produção de amônia e evitou reduções drásticas no pH ruminal, favorecendo uma melhor fermentação no rúmen.UEL2018-08-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionScientific researchScientific researchapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2965210.5433/1679-0359.2018v39n4p1669Semina: Ciências Agrárias; Vol. 39 No. 4 (2018); 1669-1682Semina: Ciências Agrárias; v. 39 n. 4 (2018); 1669-16821679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29652/23987Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessDíaz, Tatiana GarcíaBranco, Antonio FerrianiÍtavo, Luís Carlos VinhasSantos, Geraldo Tadeu dosCarvalho, Silvana TeixeiraTeodoro, Ana LúciaOliveira, Ronaldo Lopes2022-10-20T19:58:25Zoai:ojs.pkp.sfu.ca:article/29652Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T19:58:25Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
Cinética da produção de gases e digestibilidade in vitro em dietas para ruminantes com diferentes níveis de líquido de casca de castanha de caju
title In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
spellingShingle In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
Díaz, Tatiana García
Ammonia
Anacardic acid
Cardanol
Cardol
Gas production.
Amônia
Ácido anacárdico
Cardanol
Cardol
Produção de gás.
title_short In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
title_full In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
title_fullStr In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
title_full_unstemmed In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
title_sort In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid
author Díaz, Tatiana García
author_facet Díaz, Tatiana García
Branco, Antonio Ferriani
Ítavo, Luís Carlos Vinhas
Santos, Geraldo Tadeu dos
Carvalho, Silvana Teixeira
Teodoro, Ana Lúcia
Oliveira, Ronaldo Lopes
author_role author
author2 Branco, Antonio Ferriani
Ítavo, Luís Carlos Vinhas
Santos, Geraldo Tadeu dos
Carvalho, Silvana Teixeira
Teodoro, Ana Lúcia
Oliveira, Ronaldo Lopes
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Díaz, Tatiana García
Branco, Antonio Ferriani
Ítavo, Luís Carlos Vinhas
Santos, Geraldo Tadeu dos
Carvalho, Silvana Teixeira
Teodoro, Ana Lúcia
Oliveira, Ronaldo Lopes
dc.subject.por.fl_str_mv Ammonia
Anacardic acid
Cardanol
Cardol
Gas production.
Amônia
Ácido anacárdico
Cardanol
Cardol
Produção de gás.
topic Ammonia
Anacardic acid
Cardanol
Cardol
Gas production.
Amônia
Ácido anacárdico
Cardanol
Cardol
Produção de gás.
description The aim of this study was to evaluate the effect of increasing levels of cashew nut shell liquid (CNSL) in ruminant diets on in vitro dry matter digestibility (IVDMD), gas production kinetics, ruminal fermentation parameters, ammoniacal nitrogen concentration (NH3-N), and pH of the artificial rumen contents. The experimental design was completely randomized in a factorial 5 x 4 + 1 design, with five concentrate levels (200, 400, 600, 800, and 1,000 g kg-1 DM) and four CNSL levels (0, 0.3, 0.6, and 1.2 g kg-1 DM), as well as a control diet comprising only whole-plant corn silage, totaling 21 treatments. The inclusion of concentrate linearly increased IVDMD, while CNSL levels showed a quadratic effect, with the maximum estimated at 0.5 g kg-1 of CNSL. The total gas production, the disappearance of the substrate, the fraction of slow degradation (fraction VF2), and the respective degradation rate (fraction µ2) linearly increased with increasing levels of concentrate in the diet. Increasing concentrate levels resulted in a linear increase in the concentration of NH3-N and a reduction in the pH of the rumen liquid. Increasing CNSL levels decreased the concentration of NH3-N and increased the ruminal pH. The inclusion of 0.5 g CNSL kg-1 in the ruminant diets improved IVDMD, without altering the kinetic parameters of ruminal fermentation. The addition of CNSL to ruminant diets reduces ammoniacal nitrogen production and can avoid drastic reductions in ruminal pH, favoring better fermentation in the rumen.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Scientific research
Scientific research
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29652
10.5433/1679-0359.2018v39n4p1669
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29652
identifier_str_mv 10.5433/1679-0359.2018v39n4p1669
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29652/23987
dc.rights.driver.fl_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 39 No. 4 (2018); 1669-1682
Semina: Ciências Agrárias; v. 39 n. 4 (2018); 1669-1682
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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