Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31660 |
Resumo: | In this study, the feeding behavior of Nellore heifers receiving supplements containing mineral salt, conventional urea and slow release urea during the grazing stage at Brachiaria brizantha-based pastures during the dry period of the year was evaluated. Fifty-six heifers with approximately 284.72 ± 27.48 kg of body weight were used, distributed in a completely randomized design with four different treatment types: mineral salt; Urea - supplementation with 8.18% conventional urea; Mixed urea - supplementation with 4.09% conventional urea and 4.39% slow release urea and slow urea - supplementation with 8.78% slow release urea. Animals supplemented with mineral salt had longer grazing times compared to those supplemented with mixed urea, slow urea and regular urea. The dry matter intake, neutral detergent fiber and total digestible nutrients presented a similar effect, with higher values for heifers consuming supplements containing regular urea and slow urea compared to those of mixed urea. However, when the efficiency of hourly intake was evaluated, the animals that received urea supplement were more efficient in relation to the other treatments. The number of grazing periods for heifers receiving slow urea supplementation was higher compared to heifers receiving salt and mixed urea. The duration of grazing and rumination periods was longer for heifers receiving salt supplementation and mixed urea than those receiving regular urea and slow urea. It is recommended to use supplements at the level of 0.3% of body weight for heifers receiving conventional urea. |
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Semina. Ciências Agrárias (Online) |
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Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea typesComportamento ingestivo de novilhas Nelore em pastejo no período seco suplementadas com sal mineral e tipos de ureiaIntakeDeferralNon-protein nitrogenRuminant.ConsumoDiferimentoNitrogênio não proteicoRuminante.In this study, the feeding behavior of Nellore heifers receiving supplements containing mineral salt, conventional urea and slow release urea during the grazing stage at Brachiaria brizantha-based pastures during the dry period of the year was evaluated. Fifty-six heifers with approximately 284.72 ± 27.48 kg of body weight were used, distributed in a completely randomized design with four different treatment types: mineral salt; Urea - supplementation with 8.18% conventional urea; Mixed urea - supplementation with 4.09% conventional urea and 4.39% slow release urea and slow urea - supplementation with 8.78% slow release urea. Animals supplemented with mineral salt had longer grazing times compared to those supplemented with mixed urea, slow urea and regular urea. The dry matter intake, neutral detergent fiber and total digestible nutrients presented a similar effect, with higher values for heifers consuming supplements containing regular urea and slow urea compared to those of mixed urea. However, when the efficiency of hourly intake was evaluated, the animals that received urea supplement were more efficient in relation to the other treatments. The number of grazing periods for heifers receiving slow urea supplementation was higher compared to heifers receiving salt and mixed urea. The duration of grazing and rumination periods was longer for heifers receiving salt supplementation and mixed urea than those receiving regular urea and slow urea. It is recommended to use supplements at the level of 0.3% of body weight for heifers receiving conventional urea.Avaliou-se o comportamento ingestivo de novilhas Nelore, na fase de recria em pastejo de Brachiaria brizantha durante o período seco do ano, recebendo suplementos contendo sal mineral, ureia convencional e ureia de liberação lenta. Foram utilizadas 56 novilhas com aproximadamente 284,72 ± 27,48 kg de peso corporal médio, distribuídas em delineamento inteiramente casualisado sob quatro tratamentos, sendo: Sal mineral; Ureia – suplementação com 8,18% ureia convencional; Ureia mista - suplementação com 4,09% ureia convencional e 4,39% ureia de liberação lenta e Ureia lenta – suplementação com 8,78% ureia de liberação lenta. Animais suplementados com sal mineral apresentaram maior tempo de pastejo comparado aos que receberam suplemento ureia mista, ureia lenta e ureia. O consumo de matéria seca, fibra em detergente neutro e nutrientes digestíveis totais apresentou efeito similar, com maiores valores para as novilhas consumindo suplemento contendo ureia e ureia lenta comparado à ureia mista. Entretanto, quando se avalia a eficiência de consumo por hora, os animais que receberam suplemento ureia foram mais eficientes em relação aos demais tratamentos. O número de períodos em pastejo para as novilhas que receberam suplemento ureia lenta foi maior comparado com novilhas que receberam suplemento sal e ureia mista. O tempo de duração do período de pastejo e ruminação foram maiores para as novilhas que receberam suplemento sal e ureia mista do que àquelas que receberam ureia e ureia lenta. Recomenda-se utilizar suplementos no nível de 0,3% do peso corporal para novilhas de corte contendo ureia convencional.UEL2018-08-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Científicoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3166010.5433/1679-0359.2018v39n5p2195Semina: Ciências Agrárias; Vol. 39 No. 5 (2018); 2195-2204Semina: Ciências Agrárias; v. 39 n. 5 (2018); 2195-22041679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31660/24263Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessResende, Aléx SchioSilva, Fabiano Ferreira daCosta, Evely Giovanna LeiteSilva, Robério RodriguesSouza, Dicastro Dias dePorto Junior, Antonio FerrazSantiago, Bismarck MoreiraRodrigues, Eli Santana de OliveiraCosta, Edvaldo NascimentoMuricy, Jemima Fialho2022-10-20T18:21:20Zoai:ojs.pkp.sfu.ca:article/31660Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T18:21:20Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types Comportamento ingestivo de novilhas Nelore em pastejo no período seco suplementadas com sal mineral e tipos de ureia |
title |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
spellingShingle |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types Resende, Aléx Schio Intake Deferral Non-protein nitrogen Ruminant. Consumo Diferimento Nitrogênio não proteico Ruminante. |
title_short |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
title_full |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
title_fullStr |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
title_full_unstemmed |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
title_sort |
Feeding behavior of Nellore heifers grazing during the dry season of the year supplemented with mineral salt and urea types |
author |
Resende, Aléx Schio |
author_facet |
Resende, Aléx Schio Silva, Fabiano Ferreira da Costa, Evely Giovanna Leite Silva, Robério Rodrigues Souza, Dicastro Dias de Porto Junior, Antonio Ferraz Santiago, Bismarck Moreira Rodrigues, Eli Santana de Oliveira Costa, Edvaldo Nascimento Muricy, Jemima Fialho |
author_role |
author |
author2 |
Silva, Fabiano Ferreira da Costa, Evely Giovanna Leite Silva, Robério Rodrigues Souza, Dicastro Dias de Porto Junior, Antonio Ferraz Santiago, Bismarck Moreira Rodrigues, Eli Santana de Oliveira Costa, Edvaldo Nascimento Muricy, Jemima Fialho |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Resende, Aléx Schio Silva, Fabiano Ferreira da Costa, Evely Giovanna Leite Silva, Robério Rodrigues Souza, Dicastro Dias de Porto Junior, Antonio Ferraz Santiago, Bismarck Moreira Rodrigues, Eli Santana de Oliveira Costa, Edvaldo Nascimento Muricy, Jemima Fialho |
dc.subject.por.fl_str_mv |
Intake Deferral Non-protein nitrogen Ruminant. Consumo Diferimento Nitrogênio não proteico Ruminante. |
topic |
Intake Deferral Non-protein nitrogen Ruminant. Consumo Diferimento Nitrogênio não proteico Ruminante. |
description |
In this study, the feeding behavior of Nellore heifers receiving supplements containing mineral salt, conventional urea and slow release urea during the grazing stage at Brachiaria brizantha-based pastures during the dry period of the year was evaluated. Fifty-six heifers with approximately 284.72 ± 27.48 kg of body weight were used, distributed in a completely randomized design with four different treatment types: mineral salt; Urea - supplementation with 8.18% conventional urea; Mixed urea - supplementation with 4.09% conventional urea and 4.39% slow release urea and slow urea - supplementation with 8.78% slow release urea. Animals supplemented with mineral salt had longer grazing times compared to those supplemented with mixed urea, slow urea and regular urea. The dry matter intake, neutral detergent fiber and total digestible nutrients presented a similar effect, with higher values for heifers consuming supplements containing regular urea and slow urea compared to those of mixed urea. However, when the efficiency of hourly intake was evaluated, the animals that received urea supplement were more efficient in relation to the other treatments. The number of grazing periods for heifers receiving slow urea supplementation was higher compared to heifers receiving salt and mixed urea. The duration of grazing and rumination periods was longer for heifers receiving salt supplementation and mixed urea than those receiving regular urea and slow urea. It is recommended to use supplements at the level of 0.3% of body weight for heifers receiving conventional urea. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-08-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo Científico |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31660 10.5433/1679-0359.2018v39n5p2195 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31660 |
identifier_str_mv |
10.5433/1679-0359.2018v39n5p2195 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31660/24263 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 39 No. 5 (2018); 2195-2204 Semina: Ciências Agrárias; v. 39 n. 5 (2018); 2195-2204 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306079019991040 |