Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/jas/skz310 http://hdl.handle.net/11449/197542 |
Resumo: | Livestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH 4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The efficiency of N utilization (ENU) was calculated using the N balance data. Crude protein (CP) concentration of herbage increased with fertilization or legumes inclusion (P < 0.0001) while neutral detergent fiber (NDF) concentration decreased (P = 0.0355). The leaf allowance was higher in the fertilized treatment (P = 0.0294). Only uric acid excretion increased with N fertilization (P = 0.0204). The ENU was not affected by fertilized or mixed compared to control and averaged 55% (P = 0.8945). The enteric CH4 production was similar between treatments and averaged 129 g/d (P = 0.3989). We concluded that the changes in chemical composition of herbage provided by N fertilization or the inclusion of the legume showed no reduction in enteric CH4 emissions, but the ENU was more significant than previous studies with palisade grass, suggesting that different management strategies might alter the ENU under grazing conditions. |
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Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanutBrachiaria grasschemical compositionforage legumesmethanemixed pasturesN excretionLivestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH 4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The efficiency of N utilization (ENU) was calculated using the N balance data. Crude protein (CP) concentration of herbage increased with fertilization or legumes inclusion (P < 0.0001) while neutral detergent fiber (NDF) concentration decreased (P = 0.0355). The leaf allowance was higher in the fertilized treatment (P = 0.0294). Only uric acid excretion increased with N fertilization (P = 0.0204). The ENU was not affected by fertilized or mixed compared to control and averaged 55% (P = 0.8945). The enteric CH4 production was similar between treatments and averaged 129 g/d (P = 0.3989). We concluded that the changes in chemical composition of herbage provided by N fertilization or the inclusion of the legume showed no reduction in enteric CH4 emissions, but the ENU was more significant than previous studies with palisade grass, suggesting that different management strategies might alter the ENU under grazing conditions.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Sao Paulo State Univ, Dept Anim Sci, BR-14884900 Jaboticabal, SP, BrazilTexas A&M Univ, Dept Anim Sci, College Stn, TX 77843 USAEmbrapa Agrobiol, BR-23891000 Seropedica, RJ, BrazilEmbrapa Pecuaria Sudeste, BR-13560970 Sao Carlos, SP, BrazilSao Paulo State Univ, Dept Anim Sci, BR-14884900 Jaboticabal, SP, BrazilFAPESP: 2015/16631-5FAPESP: 2016/110861FAPESP: 2017/11274-5CNPq: 404169/2013-9Oxford Univ Press IncUniversidade Estadual Paulista (Unesp)Texas A&M UnivEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Berca, Andressa S. [UNESP]Cardoso, Abmael da S. [UNESP]Longhini, Vanessa Z. [UNESP]Tedeschi, Luis O.Boddey, Robert MichaelBerndt, AlexandreReis, Ricardo A. [UNESP]Ruggieri, Ana Claudia [UNESP]2020-12-11T03:11:57Z2020-12-11T03:11:57Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4625-4634http://dx.doi.org/10.1093/jas/skz310Journal Of Animal Science. Cary: Oxford Univ Press Inc, v. 97, n. 11, p. 4625-4634, 2019.0021-8812http://hdl.handle.net/11449/19754210.1093/jas/skz310WOS:000494939400026Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Animal Scienceinfo:eu-repo/semantics/openAccess2024-06-07T18:44:29Zoai:repositorio.unesp.br:11449/197542Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:43:43.479870Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
title |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
spellingShingle |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut Berca, Andressa S. [UNESP] Brachiaria grass chemical composition forage legumes methane mixed pastures N excretion |
title_short |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
title_full |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
title_fullStr |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
title_full_unstemmed |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
title_sort |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanut |
author |
Berca, Andressa S. [UNESP] |
author_facet |
Berca, Andressa S. [UNESP] Cardoso, Abmael da S. [UNESP] Longhini, Vanessa Z. [UNESP] Tedeschi, Luis O. Boddey, Robert Michael Berndt, Alexandre Reis, Ricardo A. [UNESP] Ruggieri, Ana Claudia [UNESP] |
author_role |
author |
author2 |
Cardoso, Abmael da S. [UNESP] Longhini, Vanessa Z. [UNESP] Tedeschi, Luis O. Boddey, Robert Michael Berndt, Alexandre Reis, Ricardo A. [UNESP] Ruggieri, Ana Claudia [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Texas A&M Univ Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Berca, Andressa S. [UNESP] Cardoso, Abmael da S. [UNESP] Longhini, Vanessa Z. [UNESP] Tedeschi, Luis O. Boddey, Robert Michael Berndt, Alexandre Reis, Ricardo A. [UNESP] Ruggieri, Ana Claudia [UNESP] |
dc.subject.por.fl_str_mv |
Brachiaria grass chemical composition forage legumes methane mixed pastures N excretion |
topic |
Brachiaria grass chemical composition forage legumes methane mixed pastures N excretion |
description |
Livestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH 4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The efficiency of N utilization (ENU) was calculated using the N balance data. Crude protein (CP) concentration of herbage increased with fertilization or legumes inclusion (P < 0.0001) while neutral detergent fiber (NDF) concentration decreased (P = 0.0355). The leaf allowance was higher in the fertilized treatment (P = 0.0294). Only uric acid excretion increased with N fertilization (P = 0.0204). The ENU was not affected by fertilized or mixed compared to control and averaged 55% (P = 0.8945). The enteric CH4 production was similar between treatments and averaged 129 g/d (P = 0.3989). We concluded that the changes in chemical composition of herbage provided by N fertilization or the inclusion of the legume showed no reduction in enteric CH4 emissions, but the ENU was more significant than previous studies with palisade grass, suggesting that different management strategies might alter the ENU under grazing conditions. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-11-01 2020-12-11T03:11:57Z 2020-12-11T03:11:57Z |
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/10.1093/jas/skz310 Journal Of Animal Science. Cary: Oxford Univ Press Inc, v. 97, n. 11, p. 4625-4634, 2019. 0021-8812 http://hdl.handle.net/11449/197542 10.1093/jas/skz310 WOS:000494939400026 |
url |
http://dx.doi.org/10.1093/jas/skz310 http://hdl.handle.net/11449/197542 |
identifier_str_mv |
Journal Of Animal Science. Cary: Oxford Univ Press Inc, v. 97, n. 11, p. 4625-4634, 2019. 0021-8812 10.1093/jas/skz310 WOS:000494939400026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Animal Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4625-4634 |
dc.publisher.none.fl_str_mv |
Oxford Univ Press Inc |
publisher.none.fl_str_mv |
Oxford Univ Press Inc |
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_ |
1808129454859354112 |