Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/19575 |
Resumo: | The objective of this study was to evaluate the effect of different levels of spineless-cactus meal substituting for maize in diets for supplemented steers grazing on Urochoa brizantha during the postweaning phase. The experiment was conducted on Princesa do Mateiro farm, located in Ribeirão do Largo-BA, Brazil. Forty crossbred steers with an average body weight of 261 ± 7.46 kg were distributed into four groups for evaluation of the following four levels of substitution of ground maize for spinelesscactus meal: 0.00, 30.00, 60.00, and 90.00%. The results were analysed statistically by variance and regression analyses at a 5% error probability. Increasing the amount of spineless-cactus meal in the diet had a quadratic effect on the grazing time and on the time spent on other activities. The diet had a quadratic effect on the number of grazing periods, the number of periods at the trough, and the total feeding and chewing times. In contrast, the number of periods spent on other activities and on rumination was not influenced by the level of spineless-cactus meal. The bite rate, number of bites per swallow, and number of bites per day increased linearly, whereas the swallowing time and number of cuds ruminated per day decreased as the level of spineless-cactus meal added to the diet wasincreased. The feed and rumination efficiencies of dry matter, neutral detergent fibre, crude protein, and non-fibre carbohydrates were not influenced by the level of substitution of spineless-cactus meal for ground maize. Spinelesscactus meal levels close to 60% probably provided greater fibre degradation, leading the animals to spend more time on social interactions with the group, use the feed better, and possibly have a better feed conversion.. |
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Semina. Ciências Agrárias (Online) |
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Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steersImpacto do aumento dos níveis de farelo de palma forrageira sobre o comportamento ingestivo de novilhos em pastejoBitesBovinePastureProductionRuminantSpineless cactus.BocadosBovinoPalma forrageiraPastoProduçãoRuminante.The objective of this study was to evaluate the effect of different levels of spineless-cactus meal substituting for maize in diets for supplemented steers grazing on Urochoa brizantha during the postweaning phase. The experiment was conducted on Princesa do Mateiro farm, located in Ribeirão do Largo-BA, Brazil. Forty crossbred steers with an average body weight of 261 ± 7.46 kg were distributed into four groups for evaluation of the following four levels of substitution of ground maize for spinelesscactus meal: 0.00, 30.00, 60.00, and 90.00%. The results were analysed statistically by variance and regression analyses at a 5% error probability. Increasing the amount of spineless-cactus meal in the diet had a quadratic effect on the grazing time and on the time spent on other activities. The diet had a quadratic effect on the number of grazing periods, the number of periods at the trough, and the total feeding and chewing times. In contrast, the number of periods spent on other activities and on rumination was not influenced by the level of spineless-cactus meal. The bite rate, number of bites per swallow, and number of bites per day increased linearly, whereas the swallowing time and number of cuds ruminated per day decreased as the level of spineless-cactus meal added to the diet wasincreased. The feed and rumination efficiencies of dry matter, neutral detergent fibre, crude protein, and non-fibre carbohydrates were not influenced by the level of substitution of spineless-cactus meal for ground maize. Spinelesscactus meal levels close to 60% probably provided greater fibre degradation, leading the animals to spend more time on social interactions with the group, use the feed better, and possibly have a better feed conversion..Objetivou-se avaliar os efeitos de diferentes níveis de substituição do milho pelo farelo de palma forrageira na dieta de novilhos mestiços sob suplementação em pastagens de Urochoa brizantha na fase de recria. O experimento foi conduzido na fazenda Princesa do Mateiro, no município de Ribeirão do Largo, Bahia. Foram utilizados 40 novilhos mestiços com peso corporal médio de 261 ± 7,46 kg, distribuídos em quatro grupos, para avaliação de quatro níveis de substituição do milho moído pelo farelo de palma forrageira, 0,00; 30,00; 60,00; e 90,00%. Os resultados foram analisados estatisticamente por meio de análise de variância e de regressão, a 5% de probabilidade de erro. O aumento da quantidade de farelo de palma na dieta provocou efeito quadrático no tempo de pastejo e no tempo destinado a outras atividades. Houve efeito quadrático da dieta sobre o número de períodos de pastejo, o número de períodos de cocho e para os tempos totais de alimentação e mastigação, ao contrário dos números de períodos destinados a outras atividades e à ruminação não foram influenciados pelos níveis de farelo de palma. A taxa de bocados, o número de bocados por deglutição e o número de bocados por dia aumentaram de forma crescente, enquanto o tempo de deglutição e o número de bolos ruminados por dia decresceram com o aumento dos níveis de farelo palma forrageira dieta. As eficiências de alimentação e ruminação da matéria seca, fibra em detergente neutro, proteína bruta e carboidratos não-fibrosos não foram influenciadas pelos níveis de substituição do milho moído pelo farelo de palma. Níveis próximos a 60% de farelo de palma forrageira provavelmente promoveu maior degradação da fibra, proporcionando aos animais mais tempo para a interação social entre o grupo, um melhor aproveitamento e possivelmente melhor conversão alimentar.UEL2015-12-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticleArtigoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1957510.5433/1679-0359.2015v36n6Supl2p4457Semina: Ciências Agrárias; Vol. 36 No. 6Supl2 (2015); 4457-4468Semina: Ciências Agrárias; v. 36 n. 6Supl2 (2015); 4457-44681679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19575/17664http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAbreu Filho, GeorgeSilva, Robério RodriguesSilva, Fabiano Ferreira daCarvalho, Gleidson Giordano Pinto dePereira, Maria Magna SilvaMendes, Fabrício Bacelar LimaBastos, Everton SantosSantos, Marceliana da ConceiçãoCarvalho, Venicio MacedoLins, Túlio Otávio Jardim D'Almeida2022-12-02T15:27:09Zoai:ojs.pkp.sfu.ca:article/19575Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-02T15:27:09Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers Impacto do aumento dos níveis de farelo de palma forrageira sobre o comportamento ingestivo de novilhos em pastejo |
title |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
spellingShingle |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers Abreu Filho, George Bites Bovine Pasture Production Ruminant Spineless cactus. Bocados Bovino Palma forrageira Pasto Produção Ruminante. |
title_short |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
title_full |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
title_fullStr |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
title_full_unstemmed |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
title_sort |
Impact of increasing levels of spineless-cactus meal on the ingestive behaviour of grazing steers |
author |
Abreu Filho, George |
author_facet |
Abreu Filho, George Silva, Robério Rodrigues Silva, Fabiano Ferreira da Carvalho, Gleidson Giordano Pinto de Pereira, Maria Magna Silva Mendes, Fabrício Bacelar Lima Bastos, Everton Santos Santos, Marceliana da Conceição Carvalho, Venicio Macedo Lins, Túlio Otávio Jardim D'Almeida |
author_role |
author |
author2 |
Silva, Robério Rodrigues Silva, Fabiano Ferreira da Carvalho, Gleidson Giordano Pinto de Pereira, Maria Magna Silva Mendes, Fabrício Bacelar Lima Bastos, Everton Santos Santos, Marceliana da Conceição Carvalho, Venicio Macedo Lins, Túlio Otávio Jardim D'Almeida |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Abreu Filho, George Silva, Robério Rodrigues Silva, Fabiano Ferreira da Carvalho, Gleidson Giordano Pinto de Pereira, Maria Magna Silva Mendes, Fabrício Bacelar Lima Bastos, Everton Santos Santos, Marceliana da Conceição Carvalho, Venicio Macedo Lins, Túlio Otávio Jardim D'Almeida |
dc.subject.por.fl_str_mv |
Bites Bovine Pasture Production Ruminant Spineless cactus. Bocados Bovino Palma forrageira Pasto Produção Ruminante. |
topic |
Bites Bovine Pasture Production Ruminant Spineless cactus. Bocados Bovino Palma forrageira Pasto Produção Ruminante. |
description |
The objective of this study was to evaluate the effect of different levels of spineless-cactus meal substituting for maize in diets for supplemented steers grazing on Urochoa brizantha during the postweaning phase. The experiment was conducted on Princesa do Mateiro farm, located in Ribeirão do Largo-BA, Brazil. Forty crossbred steers with an average body weight of 261 ± 7.46 kg were distributed into four groups for evaluation of the following four levels of substitution of ground maize for spinelesscactus meal: 0.00, 30.00, 60.00, and 90.00%. The results were analysed statistically by variance and regression analyses at a 5% error probability. Increasing the amount of spineless-cactus meal in the diet had a quadratic effect on the grazing time and on the time spent on other activities. The diet had a quadratic effect on the number of grazing periods, the number of periods at the trough, and the total feeding and chewing times. In contrast, the number of periods spent on other activities and on rumination was not influenced by the level of spineless-cactus meal. The bite rate, number of bites per swallow, and number of bites per day increased linearly, whereas the swallowing time and number of cuds ruminated per day decreased as the level of spineless-cactus meal added to the diet wasincreased. The feed and rumination efficiencies of dry matter, neutral detergent fibre, crude protein, and non-fibre carbohydrates were not influenced by the level of substitution of spineless-cactus meal for ground maize. Spinelesscactus meal levels close to 60% probably provided greater fibre degradation, leading the animals to spend more time on social interactions with the group, use the feed better, and possibly have a better feed conversion.. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-16 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Artigo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19575 10.5433/1679-0359.2015v36n6Supl2p4457 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19575 |
identifier_str_mv |
10.5433/1679-0359.2015v36n6Supl2p4457 |
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/19575/17664 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
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. 36 No. 6Supl2 (2015); 4457-4468 Semina: Ciências Agrárias; v. 36 n. 6Supl2 (2015); 4457-4468 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 |
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1799306072763138048 |