Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.livsci.2015.06.016 http://hdl.handle.net/11449/164895 |
Resumo: | As the biodiesel industry produces a large surplus of crude glycerin, this by-product is increasingly being considered as an attractive source of energy to replace corn in livestock diets. The objective of this study was to evaluate how the inclusion of up to 30% crude glycerin in Nellore cattle diets affects ruminal parameters such as pH, ammonia, and volatile fatty acids as well as greenhouse gas production, and concentration of the protozoal and bacterial fractions. Five ruminally cannulated Nellore steers were randomly assigned in a 5 x 5 Latin square design and fed diets containing 30% corn silage and 70% concentrate composed of sunflower meal, corn grain, soybean hulls, minerals, and 0, 7.5, 15, 22.5, or 30% crude glycerin (860 g glycerol/kg). After 14 d of adaptation, animals were submitted to rumen content sampling for 7 d. With the supplementation of glycerin in the diets, total VFA and acetate concentrations decreased (linear, P=0.03, P < 0.0001, respectively), and propionate concentrations increased (linear, P=0.007; quadratic, P=0.008), leading to an acetate to propionate ratio decrease (linear, P < 0.0001). The rumen ammonia was not affected while pH was quadratically affected and was lesser for glycerin treatments (quadratic, P=0.04). Methane production was reduced (linear, P < 0.0001) when glycerin was added, as well as the CO2 (linear, P <0.0001; quadratic, P=0.0001; cubic, P<0.0001). The concentration of liquid phase microorganisms was not affected, while the concentration of particle-associated bacteria fraction was decreased by the addition of crude glycerin in the diets. The inclusion of up to 30% of crude glycerin in diets for beef.cattle decreased ruminal concentration of total VFA and acetate, increased propionate, reduced concentration of particle-associated bacteria, and decreased production of methane. (C) 2015 Elsevier B.V. All rights reserved. |
id |
UNSP_ec9017dbf2deeff6b6efa2552ba63f45 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/164895 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattleGlycerinGreenhouse gasRumen microorganismpHAs the biodiesel industry produces a large surplus of crude glycerin, this by-product is increasingly being considered as an attractive source of energy to replace corn in livestock diets. The objective of this study was to evaluate how the inclusion of up to 30% crude glycerin in Nellore cattle diets affects ruminal parameters such as pH, ammonia, and volatile fatty acids as well as greenhouse gas production, and concentration of the protozoal and bacterial fractions. Five ruminally cannulated Nellore steers were randomly assigned in a 5 x 5 Latin square design and fed diets containing 30% corn silage and 70% concentrate composed of sunflower meal, corn grain, soybean hulls, minerals, and 0, 7.5, 15, 22.5, or 30% crude glycerin (860 g glycerol/kg). After 14 d of adaptation, animals were submitted to rumen content sampling for 7 d. With the supplementation of glycerin in the diets, total VFA and acetate concentrations decreased (linear, P=0.03, P < 0.0001, respectively), and propionate concentrations increased (linear, P=0.007; quadratic, P=0.008), leading to an acetate to propionate ratio decrease (linear, P < 0.0001). The rumen ammonia was not affected while pH was quadratically affected and was lesser for glycerin treatments (quadratic, P=0.04). Methane production was reduced (linear, P < 0.0001) when glycerin was added, as well as the CO2 (linear, P <0.0001; quadratic, P=0.0001; cubic, P<0.0001). The concentration of liquid phase microorganisms was not affected, while the concentration of particle-associated bacteria fraction was decreased by the addition of crude glycerin in the diets. The inclusion of up to 30% of crude glycerin in diets for beef.cattle decreased ruminal concentration of total VFA and acetate, increased propionate, reduced concentration of particle-associated bacteria, and decreased production of methane. (C) 2015 Elsevier B.V. All rights reserved.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ Julio de Mesquita Filho, Coll Agr & Vet Sci, BR-14884900 Sao Paulo, BrazilSao Paulo State Univ Julio de Mesquita Filho, Coll Agr & Vet Sci, BR-14884900 Sao Paulo, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)van Cleef, E. H. C. B. [UNESP]Almeida, M. T. C. [UNESP]Perez, H. L. [UNESP]van Cleef, F. O. S. [UNESP]Silva, D. A. V. [UNESP]Ezequiel, J. M. B. [UNESP]2018-11-27T00:47:59Z2018-11-27T00:47:59Z2015-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article158-164application/pdfhttp://dx.doi.org/10.1016/j.livsci.2015.06.016Livestock Science. Amsterdam: Elsevier Science Bv, v. 178, p. 158-164, 2015.1871-1413http://hdl.handle.net/11449/16489510.1016/j.livsci.2015.06.016WOS:000360513600018WOS000360513600018.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Science0,730info:eu-repo/semantics/openAccess2023-12-06T06:14:06Zoai:repositorio.unesp.br:11449/164895Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-06T06:14:06Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
title |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
spellingShingle |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle van Cleef, E. H. C. B. [UNESP] Glycerin Greenhouse gas Rumen microorganism pH |
title_short |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
title_full |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
title_fullStr |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
title_full_unstemmed |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
title_sort |
Crude glycerin changes ruminal parameters, in vitro greenhouse gas profile, and bacterial fractions of beef cattle |
author |
van Cleef, E. H. C. B. [UNESP] |
author_facet |
van Cleef, E. H. C. B. [UNESP] Almeida, M. T. C. [UNESP] Perez, H. L. [UNESP] van Cleef, F. O. S. [UNESP] Silva, D. A. V. [UNESP] Ezequiel, J. M. B. [UNESP] |
author_role |
author |
author2 |
Almeida, M. T. C. [UNESP] Perez, H. L. [UNESP] van Cleef, F. O. S. [UNESP] Silva, D. A. V. [UNESP] Ezequiel, J. M. B. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
van Cleef, E. H. C. B. [UNESP] Almeida, M. T. C. [UNESP] Perez, H. L. [UNESP] van Cleef, F. O. S. [UNESP] Silva, D. A. V. [UNESP] Ezequiel, J. M. B. [UNESP] |
dc.subject.por.fl_str_mv |
Glycerin Greenhouse gas Rumen microorganism pH |
topic |
Glycerin Greenhouse gas Rumen microorganism pH |
description |
As the biodiesel industry produces a large surplus of crude glycerin, this by-product is increasingly being considered as an attractive source of energy to replace corn in livestock diets. The objective of this study was to evaluate how the inclusion of up to 30% crude glycerin in Nellore cattle diets affects ruminal parameters such as pH, ammonia, and volatile fatty acids as well as greenhouse gas production, and concentration of the protozoal and bacterial fractions. Five ruminally cannulated Nellore steers were randomly assigned in a 5 x 5 Latin square design and fed diets containing 30% corn silage and 70% concentrate composed of sunflower meal, corn grain, soybean hulls, minerals, and 0, 7.5, 15, 22.5, or 30% crude glycerin (860 g glycerol/kg). After 14 d of adaptation, animals were submitted to rumen content sampling for 7 d. With the supplementation of glycerin in the diets, total VFA and acetate concentrations decreased (linear, P=0.03, P < 0.0001, respectively), and propionate concentrations increased (linear, P=0.007; quadratic, P=0.008), leading to an acetate to propionate ratio decrease (linear, P < 0.0001). The rumen ammonia was not affected while pH was quadratically affected and was lesser for glycerin treatments (quadratic, P=0.04). Methane production was reduced (linear, P < 0.0001) when glycerin was added, as well as the CO2 (linear, P <0.0001; quadratic, P=0.0001; cubic, P<0.0001). The concentration of liquid phase microorganisms was not affected, while the concentration of particle-associated bacteria fraction was decreased by the addition of crude glycerin in the diets. The inclusion of up to 30% of crude glycerin in diets for beef.cattle decreased ruminal concentration of total VFA and acetate, increased propionate, reduced concentration of particle-associated bacteria, and decreased production of methane. (C) 2015 Elsevier B.V. All rights reserved. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-01 2018-11-27T00:47:59Z 2018-11-27T00:47:59Z |
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 |
http://dx.doi.org/10.1016/j.livsci.2015.06.016 Livestock Science. Amsterdam: Elsevier Science Bv, v. 178, p. 158-164, 2015. 1871-1413 http://hdl.handle.net/11449/164895 10.1016/j.livsci.2015.06.016 WOS:000360513600018 WOS000360513600018.pdf |
url |
http://dx.doi.org/10.1016/j.livsci.2015.06.016 http://hdl.handle.net/11449/164895 |
identifier_str_mv |
Livestock Science. Amsterdam: Elsevier Science Bv, v. 178, p. 158-164, 2015. 1871-1413 10.1016/j.livsci.2015.06.016 WOS:000360513600018 WOS000360513600018.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Livestock Science 0,730 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
158-164 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1799965186440822784 |