Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/10510 |
Resumo: | The objective of this study was to identify which variables of ingestive behavior, displacement patterns and pasture parameters explain most of the results among the levels of supplementation offered to Tifton-85 (Cynodon dactylon) heifers. Principal component analysis was used to identify which variables were relevant. In the analysis eight variables, grazing time, idle time, number of feeding stations/day, time per feeding station, bite rate/day, leaf blades mass, leaf allowance and leaf blade: stem ratio, explained 80.5% of the change in results. Heifers exclusively on pasture presented grazing time and bite rate/day and less idle time. Heifers receiving 0.4% supplementation visited more feeding stations, while heifers who received 1.2% supplement remained longer in feeding stations. In the first evaluation period, heifers had longer grazing time, number of food stations/day, bit rate, mass and allowance of leaf blades. The level of 0.8% of supplementary did not influence the variables evaluated. Displacement patterns and ingestive behavior of heifers receiving or not supplementation are influenced by the structural characteristics of the pasture. |
id |
UNIFEI_7b21f32fbfb7c52bc2dad6f86f5c52eb |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/10510 |
network_acronym_str |
UNIFEI |
network_name_str |
Research, Society and Development |
repository_id_str |
|
spelling |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementationComportamiento ingestivo y patrones de desplazamiento de novillas de carne en Tifton 85 con diferentes niveles de suplementaciónComportamento ingestivo e padrões de deslocamento de novilhas de corte em Tifton 85 com diferentes níveis de suplementaçãoAnalisis multivariableCynodon dactylonPastizales tropicalesTasa de bocadoTiempo de pastoreo.Análise multivariadaCynodon dactylonPastagem tropicalTaxa de bocadoTempo de pastejo.Bite rateCynodon dactylonGrazing timeMultivariate analysisTropical pastures.The objective of this study was to identify which variables of ingestive behavior, displacement patterns and pasture parameters explain most of the results among the levels of supplementation offered to Tifton-85 (Cynodon dactylon) heifers. Principal component analysis was used to identify which variables were relevant. In the analysis eight variables, grazing time, idle time, number of feeding stations/day, time per feeding station, bite rate/day, leaf blades mass, leaf allowance and leaf blade: stem ratio, explained 80.5% of the change in results. Heifers exclusively on pasture presented grazing time and bite rate/day and less idle time. Heifers receiving 0.4% supplementation visited more feeding stations, while heifers who received 1.2% supplement remained longer in feeding stations. In the first evaluation period, heifers had longer grazing time, number of food stations/day, bit rate, mass and allowance of leaf blades. The level of 0.8% of supplementary did not influence the variables evaluated. Displacement patterns and ingestive behavior of heifers receiving or not supplementation are influenced by the structural characteristics of the pasture.El objetivo fue identificar qué variables de comportamiento ingestivo, patrones de desplazamiento y parámetros de producción de pastos explican la mayor parte de los resultados entre los niveles de suplementación ofrecidos a las novillas terminadas en Tifton 85 (Cynodon dactylon). Se utilizó el análisis de componentes principales para identificar qué variables eran relevantes. En el análisis, ocho variables, tiempo de pastoreo, tiempo libre, número de estaciones de alimentación/día, tiempo en cada estación, tasa de bocado/día, masa y suministro de láminas foliar y relación hoja: tallo, explicaron el 80,5% de la variación en los resultados. Novillas exclusivamente en pastos tenían un mayor tiempo de pastoreo y tasa de bocado/día y menos tiempo de inactividad. Las novillas que recibieron 0,4% de peso corporal como suplemento visitaron un mayor número de estaciones de alimentación, mientras que las novillas que recibieron 1,2% como suplemento permanecieron más tiempo en cada estación de alimentación. En el primer período de evaluación, las novillas tenían mayor tiempo de pastoreo, número de estaciones de alimentación/día, tasa de bocado, masa y suministro de hojas. El nivel de suplemento de 0,8% no influyó en las variables evaluadas. Los patrones de desplazamiento y el comportamiento de ingestión de las novillas que reciben o no suplementación están influenciados por las características estructurales del pasto.Objetivou-se identificar quais as variáveis do comportamento ingestivo, padrões de deslocamento e parâmetros produtivos da pastagem explicam a maior parte dos resultados entre os níveis de suplementação ofertados a novilhas terminadas em Tifton 85 (Cynodon dactylon). Utilizou-se a análise de componentes principais para identificar quais variáveis foram relevantes. Na análise, oito variáveis, tempo de pastejo, tempo de ócio, número de estações alimentares/dia, tempo em cada estação, taxa de bocado/dia, massa e oferta de lâminas foliares e relação folha:colmo, explicaram 80,5% da variação dos resultados. Novilhas exclusivamente em pastagem tiveram maior tempo de pastejo e taxa de bocado/dia e menor tempo em ócio. Novilhas que receberam 0,4% de peso corporal de suplemento visitaram maior número de estações alimentares, enquanto novilhas que receberam 1,2% de suplemento permaneceram mais tempo em cada estação alimentar. No primeiro período de avaliação, as novilhas tiveram maior tempo de pastejo, número de estações alimentares/dia, taxa de bocado, massa e oferta de lâminas foliares. O nível 0,8% de suplemento, não influenciou as variáveis avaliadas. Os padrões de deslocamento e o comportamento ingestivo de novilhas recebendo ou não suplemento são influenciadas pelas características estruturais do pasto.Research, Society and Development2020-12-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1051010.33448/rsd-v9i11.10510Research, Society and Development; Vol. 9 No. 11; e94491110510Research, Society and Development; Vol. 9 Núm. 11; e94491110510Research, Society and Development; v. 9 n. 11; e944911105102525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/10510/9523Copyright (c) 2020 Ana Paula Machado Martini; Amanda Farias de Moura; Daniele Borchate; Sander Martinho Adams; Mauren Burin da Silva; Joziane Michelon Cocco; Jonatas Cattelam; Fernanda Cristina Breda de Mello; Ivan Luiz Brondani; Dari Celestino Alves Filhohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMartini, Ana Paula Machado Moura, Amanda Farias de Borchate, DanieleAdams, Sander MartinhoSilva, Mauren Burin da Cocco, Joziane MichelonCattelam, JonatasMello, Fernanda Cristina Breda de Brondani, Ivan Luiz Alves Filho, Dari Celestino2020-12-10T23:37:57Zoai:ojs.pkp.sfu.ca:article/10510Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:32:34.134040Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation Comportamiento ingestivo y patrones de desplazamiento de novillas de carne en Tifton 85 con diferentes niveles de suplementación Comportamento ingestivo e padrões de deslocamento de novilhas de corte em Tifton 85 com diferentes níveis de suplementação |
title |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
spellingShingle |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation Martini, Ana Paula Machado Analisis multivariable Cynodon dactylon Pastizales tropicales Tasa de bocado Tiempo de pastoreo. Análise multivariada Cynodon dactylon Pastagem tropical Taxa de bocado Tempo de pastejo. Bite rate Cynodon dactylon Grazing time Multivariate analysis Tropical pastures. |
title_short |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
title_full |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
title_fullStr |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
title_full_unstemmed |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
title_sort |
Ingestive behavior and displacement patterns of beef heifers in Tifton 85 grazing with different levels of supplementation |
author |
Martini, Ana Paula Machado |
author_facet |
Martini, Ana Paula Machado Moura, Amanda Farias de Borchate, Daniele Adams, Sander Martinho Silva, Mauren Burin da Cocco, Joziane Michelon Cattelam, Jonatas Mello, Fernanda Cristina Breda de Brondani, Ivan Luiz Alves Filho, Dari Celestino |
author_role |
author |
author2 |
Moura, Amanda Farias de Borchate, Daniele Adams, Sander Martinho Silva, Mauren Burin da Cocco, Joziane Michelon Cattelam, Jonatas Mello, Fernanda Cristina Breda de Brondani, Ivan Luiz Alves Filho, Dari Celestino |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Martini, Ana Paula Machado Moura, Amanda Farias de Borchate, Daniele Adams, Sander Martinho Silva, Mauren Burin da Cocco, Joziane Michelon Cattelam, Jonatas Mello, Fernanda Cristina Breda de Brondani, Ivan Luiz Alves Filho, Dari Celestino |
dc.subject.por.fl_str_mv |
Analisis multivariable Cynodon dactylon Pastizales tropicales Tasa de bocado Tiempo de pastoreo. Análise multivariada Cynodon dactylon Pastagem tropical Taxa de bocado Tempo de pastejo. Bite rate Cynodon dactylon Grazing time Multivariate analysis Tropical pastures. |
topic |
Analisis multivariable Cynodon dactylon Pastizales tropicales Tasa de bocado Tiempo de pastoreo. Análise multivariada Cynodon dactylon Pastagem tropical Taxa de bocado Tempo de pastejo. Bite rate Cynodon dactylon Grazing time Multivariate analysis Tropical pastures. |
description |
The objective of this study was to identify which variables of ingestive behavior, displacement patterns and pasture parameters explain most of the results among the levels of supplementation offered to Tifton-85 (Cynodon dactylon) heifers. Principal component analysis was used to identify which variables were relevant. In the analysis eight variables, grazing time, idle time, number of feeding stations/day, time per feeding station, bite rate/day, leaf blades mass, leaf allowance and leaf blade: stem ratio, explained 80.5% of the change in results. Heifers exclusively on pasture presented grazing time and bite rate/day and less idle time. Heifers receiving 0.4% supplementation visited more feeding stations, while heifers who received 1.2% supplement remained longer in feeding stations. In the first evaluation period, heifers had longer grazing time, number of food stations/day, bit rate, mass and allowance of leaf blades. The level of 0.8% of supplementary did not influence the variables evaluated. Displacement patterns and ingestive behavior of heifers receiving or not supplementation are influenced by the structural characteristics of the pasture. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/10510 10.33448/rsd-v9i11.10510 |
url |
https://rsdjournal.org/index.php/rsd/article/view/10510 |
identifier_str_mv |
10.33448/rsd-v9i11.10510 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/10510/9523 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 11; e94491110510 Research, Society and Development; Vol. 9 Núm. 11; e94491110510 Research, Society and Development; v. 9 n. 11; e94491110510 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052665114394624 |