“In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin

Detalhes bibliográficos
Autor(a) principal: van Cleef, Eric Haydt Castello Branco
Data de Publicação: 2018
Outros Autores: van Cleef, Flavia de Oliveira Scarpino, Ezequiel, Jane Maria Bertocco [UNESP], Patiño Pardo, René M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/232828
Resumo: The objective of this study was to evaluate the inclusion of up to 30% crude glycerin (CG) in feedlot Nellore cattle diets and its effects on in situ ruminal degradability of dry matter, organic matter, crude protein, neutral detergent fiber, and acid detergent fiber from the feed ingredients maize, sunflower meal, soybean hulls, and maize silage. Five permanently rumen-cannulated Nellore steers (approximately 400 kg BW and 24 months old) were used for ruminal incubations. Animals were randomly assigned to one of the five treatments: G0 - (control), no CG inclusion in the diet; G7.5 - 75 g CG/kg dietary dry matter (DM); G15 - 150 g CGL/kg dietary DM; G22 - 220 g CG/kg dietary DM; and G30 - 300 g CG/kg dietary DM. Data were analyzed as a Latin square design 5 × 5. Contrasts were performed observing the significance of linear and quadratic models and significance of control treatment × glycerin treatments. Crude glycerin did not affect most of degradation parameters of DM and OM of tested ingredients, with exception of effective degradation of DM of maize silage, which was linearly decreased with the inclusion of CG (P = 0.02). The CG quadratically affected fermentation rate of CP of sunflower meal, with the greatest values 8.36 and 9.05, respectively for treatments G15 and G22.5. The degradation parameters of NDF of all the ingredients tested were linearly decreased with the inclusion of CG (P < 0.01). The inclusion of up to 30% crude glycerin in Nellore cattle diets changes “in situ” ruminal degradation kinetics of feed ingredients, highly impairing fiber fraction use.
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spelling “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerinBiodieselBy-productGlycerinRuminal degradationThe objective of this study was to evaluate the inclusion of up to 30% crude glycerin (CG) in feedlot Nellore cattle diets and its effects on in situ ruminal degradability of dry matter, organic matter, crude protein, neutral detergent fiber, and acid detergent fiber from the feed ingredients maize, sunflower meal, soybean hulls, and maize silage. Five permanently rumen-cannulated Nellore steers (approximately 400 kg BW and 24 months old) were used for ruminal incubations. Animals were randomly assigned to one of the five treatments: G0 - (control), no CG inclusion in the diet; G7.5 - 75 g CG/kg dietary dry matter (DM); G15 - 150 g CGL/kg dietary DM; G22 - 220 g CG/kg dietary DM; and G30 - 300 g CG/kg dietary DM. Data were analyzed as a Latin square design 5 × 5. Contrasts were performed observing the significance of linear and quadratic models and significance of control treatment × glycerin treatments. Crude glycerin did not affect most of degradation parameters of DM and OM of tested ingredients, with exception of effective degradation of DM of maize silage, which was linearly decreased with the inclusion of CG (P = 0.02). The CG quadratically affected fermentation rate of CP of sunflower meal, with the greatest values 8.36 and 9.05, respectively for treatments G15 and G22.5. The degradation parameters of NDF of all the ingredients tested were linearly decreased with the inclusion of CG (P < 0.01). The inclusion of up to 30% crude glycerin in Nellore cattle diets changes “in situ” ruminal degradation kinetics of feed ingredients, highly impairing fiber fraction use.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Federal University of Triângulo MineiroUniversity of Florida Institute of Food and Agricultural Sciences North Florida Research and Education CenterSão Paulo State University “Júlio de Mesquita Filho” College of Agrarian and Veterinarian SciencesUniversity of Sucre Faculty of Agricultural ScienceSão Paulo State University “Júlio de Mesquita Filho” College of Agrarian and Veterinarian SciencesFAPESP: 08/53712-0FAPESP: 09/51857-3Federal University of Triângulo MineiroNorth Florida Research and Education CenterUniversidade Estadual Paulista (UNESP)Faculty of Agricultural Sciencevan Cleef, Eric Haydt Castello Brancovan Cleef, Flavia de Oliveira ScarpinoEzequiel, Jane Maria Bertocco [UNESP]Patiño Pardo, René M.2022-04-30T13:09:14Z2022-04-30T13:09:14Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLivestock Research for Rural Development, v. 30, n. 12, 2018.0121-3784http://hdl.handle.net/11449/2328282-s2.0-85057732285Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Research for Rural Developmentinfo:eu-repo/semantics/openAccess2024-06-07T18:40:13Zoai:repositorio.unesp.br:11449/232828Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:40:54.446539Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
title “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
spellingShingle “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
van Cleef, Eric Haydt Castello Branco
Biodiesel
By-product
Glycerin
Ruminal degradation
title_short “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
title_full “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
title_fullStr “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
title_full_unstemmed “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
title_sort “In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
author van Cleef, Eric Haydt Castello Branco
author_facet van Cleef, Eric Haydt Castello Branco
van Cleef, Flavia de Oliveira Scarpino
Ezequiel, Jane Maria Bertocco [UNESP]
Patiño Pardo, René M.
author_role author
author2 van Cleef, Flavia de Oliveira Scarpino
Ezequiel, Jane Maria Bertocco [UNESP]
Patiño Pardo, René M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Federal University of Triângulo Mineiro
North Florida Research and Education Center
Universidade Estadual Paulista (UNESP)
Faculty of Agricultural Science
dc.contributor.author.fl_str_mv van Cleef, Eric Haydt Castello Branco
van Cleef, Flavia de Oliveira Scarpino
Ezequiel, Jane Maria Bertocco [UNESP]
Patiño Pardo, René M.
dc.subject.por.fl_str_mv Biodiesel
By-product
Glycerin
Ruminal degradation
topic Biodiesel
By-product
Glycerin
Ruminal degradation
description The objective of this study was to evaluate the inclusion of up to 30% crude glycerin (CG) in feedlot Nellore cattle diets and its effects on in situ ruminal degradability of dry matter, organic matter, crude protein, neutral detergent fiber, and acid detergent fiber from the feed ingredients maize, sunflower meal, soybean hulls, and maize silage. Five permanently rumen-cannulated Nellore steers (approximately 400 kg BW and 24 months old) were used for ruminal incubations. Animals were randomly assigned to one of the five treatments: G0 - (control), no CG inclusion in the diet; G7.5 - 75 g CG/kg dietary dry matter (DM); G15 - 150 g CGL/kg dietary DM; G22 - 220 g CG/kg dietary DM; and G30 - 300 g CG/kg dietary DM. Data were analyzed as a Latin square design 5 × 5. Contrasts were performed observing the significance of linear and quadratic models and significance of control treatment × glycerin treatments. Crude glycerin did not affect most of degradation parameters of DM and OM of tested ingredients, with exception of effective degradation of DM of maize silage, which was linearly decreased with the inclusion of CG (P = 0.02). The CG quadratically affected fermentation rate of CP of sunflower meal, with the greatest values 8.36 and 9.05, respectively for treatments G15 and G22.5. The degradation parameters of NDF of all the ingredients tested were linearly decreased with the inclusion of CG (P < 0.01). The inclusion of up to 30% crude glycerin in Nellore cattle diets changes “in situ” ruminal degradation kinetics of feed ingredients, highly impairing fiber fraction use.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
2022-04-30T13:09:14Z
2022-04-30T13:09:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Livestock Research for Rural Development, v. 30, n. 12, 2018.
0121-3784
http://hdl.handle.net/11449/232828
2-s2.0-85057732285
identifier_str_mv Livestock Research for Rural Development, v. 30, n. 12, 2018.
0121-3784
2-s2.0-85057732285
url http://hdl.handle.net/11449/232828
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Livestock Research for Rural Development
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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