Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.

Detalhes bibliográficos
Autor(a) principal: LOPES, F. C. F.
Data de Publicação: 2018
Outros Autores: CAMPOS, M. M., BORGES, A. L. C. C., PANCOTI, C. G., SILVA, R. R., MOREIRA, T. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101930
Resumo: Abstract Nine non-lactating Holstein x Gyr cattle were fed with rations based on chopped sugarcane supplied in natura (control) or hydrolyzed (fresh matter basis) for 24 h with 1% or 2% calcium oxide (CaO), which corresponds to 3.1% or 6.2% CaO on a dry matter (DM) basis, respectively. Ruminal parameters (pH and ammonia N, acetate, propionate and butyrate concentrations) as well as the kinetics of fluid and particulate passage in the gastrointestinal tract from cattle were evaluated. A design using three 3 x 3 contemporaneous Latin Squares (LS) was adopted. The studies of kinetics of fluid and particulate passage were performed using the external markers cobalt-EDTA and chromium-mordanted-NDF, respectively. The ruminal parameters were analyzed according to a 3 x 3 LS replicated three times with repeated measures in time using mixed models that included the fixed effects of treatment (level of CaO), time of sampling and their interaction and the following random effects: LS, animal(LS), period of LS and period*animal (LS). The kinetic parameters of fluid and particulate passage were analyzed using mixed models with treatment as a fixed effect and period of LS, animal(LS) and LS as random effects. The linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. Significant differences were declared at P ? 0.05. No treatment*time interaction was observed (P > 0.05) for any ruminal parameter. A linear effect (P = 0.0279) of CaO inclusion on ruminal pH was observed, but there were no effects (P > 0.05) of the treatments on the ammonia N, acetate, butyrate and total volatile fatty acid ruminal concentrations. There was a quadratic effect (P = 0.05) of the addition of CaO on the ruminal propionate concentration. There was no effect (P > 0.05) of the treatments on the particulate rate of passage in the rumen as well as on the mean retention time in this compartment and in the total gastrointestinal tract. On the other hand, the addition of CaO to sugarcane promoted a linear increase (P = 0.0258) in the particulate post-ruminal passage rate and, consequently, a linear reduction (P = 0.0363) of the mean retention time in the cecum-proximal colon. There was no effect (P > 0.05) of the sugarcane hydrolysis with CaO on the ruminal parameters of the kinetics of fluid passage (dilution rate, retention time and turnover rate). The addition of 3.1% or 6.2% CaO on a DM basis (1% or 2% CaO on a fresh matter basis, respectively) of sugarcane does not improve ruminal fermentation, nor does it increase the fluid or particulate passage in the rumen of non-lactating Holstein x Gyr cattle.
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spelling Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.BovineLimeÁlcaliPhSaccharum OfficinarumVolatile fatty acidsAbstract Nine non-lactating Holstein x Gyr cattle were fed with rations based on chopped sugarcane supplied in natura (control) or hydrolyzed (fresh matter basis) for 24 h with 1% or 2% calcium oxide (CaO), which corresponds to 3.1% or 6.2% CaO on a dry matter (DM) basis, respectively. Ruminal parameters (pH and ammonia N, acetate, propionate and butyrate concentrations) as well as the kinetics of fluid and particulate passage in the gastrointestinal tract from cattle were evaluated. A design using three 3 x 3 contemporaneous Latin Squares (LS) was adopted. The studies of kinetics of fluid and particulate passage were performed using the external markers cobalt-EDTA and chromium-mordanted-NDF, respectively. The ruminal parameters were analyzed according to a 3 x 3 LS replicated three times with repeated measures in time using mixed models that included the fixed effects of treatment (level of CaO), time of sampling and their interaction and the following random effects: LS, animal(LS), period of LS and period*animal (LS). The kinetic parameters of fluid and particulate passage were analyzed using mixed models with treatment as a fixed effect and period of LS, animal(LS) and LS as random effects. The linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. Significant differences were declared at P ? 0.05. No treatment*time interaction was observed (P > 0.05) for any ruminal parameter. A linear effect (P = 0.0279) of CaO inclusion on ruminal pH was observed, but there were no effects (P > 0.05) of the treatments on the ammonia N, acetate, butyrate and total volatile fatty acid ruminal concentrations. There was a quadratic effect (P = 0.05) of the addition of CaO on the ruminal propionate concentration. There was no effect (P > 0.05) of the treatments on the particulate rate of passage in the rumen as well as on the mean retention time in this compartment and in the total gastrointestinal tract. On the other hand, the addition of CaO to sugarcane promoted a linear increase (P = 0.0258) in the particulate post-ruminal passage rate and, consequently, a linear reduction (P = 0.0363) of the mean retention time in the cecum-proximal colon. There was no effect (P > 0.05) of the sugarcane hydrolysis with CaO on the ruminal parameters of the kinetics of fluid passage (dilution rate, retention time and turnover rate). The addition of 3.1% or 6.2% CaO on a DM basis (1% or 2% CaO on a fresh matter basis, respectively) of sugarcane does not improve ruminal fermentation, nor does it increase the fluid or particulate passage in the rumen of non-lactating Holstein x Gyr cattle.FERNANDO CESAR FERRAZ LOPES, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; ANA LUIZA C. C. BORGES, UFMG; CARLOS GIOVANI PANCOTI, Agroceres; RICARDO REIS E SILVA, UFMG; TAINÁ SILVESTRE MOREIRA, USP.LOPES, F. C. F.CAMPOS, M. M.BORGES, A. L. C. C.PANCOTI, C. G.SILVA, R. R.MOREIRA, T. S.2018-12-20T23:40:27Z2018-12-20T23:40:27Z2018-12-1820182018-12-20T23:40:27Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSemina: Ciências Agrárias, v. 39, n. 6, p. 2783-2794, 2018.http://www.alice.cnptia.embrapa.br/alice/handle/doc/110193010.5433/1679-0359.2018v39n6p2783enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-12-20T23:40:33Zoai:www.alice.cnptia.embrapa.br:doc/1101930Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-12-20T23:40:33falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-12-20T23:40:33Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
title Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
spellingShingle Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
LOPES, F. C. F.
Bovine
Lime
Álcali
Ph
Saccharum Officinarum
Volatile fatty acids
title_short Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
title_full Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
title_fullStr Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
title_full_unstemmed Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
title_sort Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide.
author LOPES, F. C. F.
author_facet LOPES, F. C. F.
CAMPOS, M. M.
BORGES, A. L. C. C.
PANCOTI, C. G.
SILVA, R. R.
MOREIRA, T. S.
author_role author
author2 CAMPOS, M. M.
BORGES, A. L. C. C.
PANCOTI, C. G.
SILVA, R. R.
MOREIRA, T. S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv FERNANDO CESAR FERRAZ LOPES, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; ANA LUIZA C. C. BORGES, UFMG; CARLOS GIOVANI PANCOTI, Agroceres; RICARDO REIS E SILVA, UFMG; TAINÁ SILVESTRE MOREIRA, USP.
dc.contributor.author.fl_str_mv LOPES, F. C. F.
CAMPOS, M. M.
BORGES, A. L. C. C.
PANCOTI, C. G.
SILVA, R. R.
MOREIRA, T. S.
dc.subject.por.fl_str_mv Bovine
Lime
Álcali
Ph
Saccharum Officinarum
Volatile fatty acids
topic Bovine
Lime
Álcali
Ph
Saccharum Officinarum
Volatile fatty acids
description Abstract Nine non-lactating Holstein x Gyr cattle were fed with rations based on chopped sugarcane supplied in natura (control) or hydrolyzed (fresh matter basis) for 24 h with 1% or 2% calcium oxide (CaO), which corresponds to 3.1% or 6.2% CaO on a dry matter (DM) basis, respectively. Ruminal parameters (pH and ammonia N, acetate, propionate and butyrate concentrations) as well as the kinetics of fluid and particulate passage in the gastrointestinal tract from cattle were evaluated. A design using three 3 x 3 contemporaneous Latin Squares (LS) was adopted. The studies of kinetics of fluid and particulate passage were performed using the external markers cobalt-EDTA and chromium-mordanted-NDF, respectively. The ruminal parameters were analyzed according to a 3 x 3 LS replicated three times with repeated measures in time using mixed models that included the fixed effects of treatment (level of CaO), time of sampling and their interaction and the following random effects: LS, animal(LS), period of LS and period*animal (LS). The kinetic parameters of fluid and particulate passage were analyzed using mixed models with treatment as a fixed effect and period of LS, animal(LS) and LS as random effects. The linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. Significant differences were declared at P ? 0.05. No treatment*time interaction was observed (P > 0.05) for any ruminal parameter. A linear effect (P = 0.0279) of CaO inclusion on ruminal pH was observed, but there were no effects (P > 0.05) of the treatments on the ammonia N, acetate, butyrate and total volatile fatty acid ruminal concentrations. There was a quadratic effect (P = 0.05) of the addition of CaO on the ruminal propionate concentration. There was no effect (P > 0.05) of the treatments on the particulate rate of passage in the rumen as well as on the mean retention time in this compartment and in the total gastrointestinal tract. On the other hand, the addition of CaO to sugarcane promoted a linear increase (P = 0.0258) in the particulate post-ruminal passage rate and, consequently, a linear reduction (P = 0.0363) of the mean retention time in the cecum-proximal colon. There was no effect (P > 0.05) of the sugarcane hydrolysis with CaO on the ruminal parameters of the kinetics of fluid passage (dilution rate, retention time and turnover rate). The addition of 3.1% or 6.2% CaO on a DM basis (1% or 2% CaO on a fresh matter basis, respectively) of sugarcane does not improve ruminal fermentation, nor does it increase the fluid or particulate passage in the rumen of non-lactating Holstein x Gyr cattle.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-20T23:40:27Z
2018-12-20T23:40:27Z
2018-12-18
2018
2018-12-20T23:40:27Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Semina: Ciências Agrárias, v. 39, n. 6, p. 2783-2794, 2018.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101930
10.5433/1679-0359.2018v39n6p2783
identifier_str_mv Semina: Ciências Agrárias, v. 39, n. 6, p. 2783-2794, 2018.
10.5433/1679-0359.2018v39n6p2783
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101930
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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