“In situ” ruminal degradation kinetics of feed ingredients in feedlot Nellore cattle fed high concentrations of crude glycerin
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
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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“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 |
|
_version_ |
1808128399628042240 |