Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/16555 |
Resumo: | The objective of this work was evaluate the ingestive behavior of beef cows submitted to different nutritional levels in the final third of gestation. Eighteen pregnant cows of the Charolais and Nellore breeds were used, divided into treatments: Low (exclusively on natural pasture); Medium (supplementation to meet maintenance requirements); High (supplementation to meet 150% of maintenance requirements). The randomized complete experimental design was used with six replicates per treatment and three evaluation periods. The time spent in other activities increased with pregnancy advancement and as the nutritional level in this period also increased, with values of 0.96; 1.86 and 3.24 hours day-1 for the Low, Medium and High treatments respectively. High treatment cows proved to be more selective, since they had less time per station (6.96 vs 9.18 and 10.19 seconds) and went through a higher number of stations per minute (9.51 vs 7.06 and 7 , 31) in relation to the Low and Medium cows, respectively. Shortest time per bite (1.45 seconds) and consequently a greater number of bite rate (41.86 bites/min) was obtained in the Low cows compared to Medium and High cows. Greater selectivity and grazing efficiency occurred at pregnancy end, with less displacement between stations (1.03 steps) and less time per station (6.42 seconds) resulting in a greater number of stations / minute (10.01 stations). Low-level cows are more efficient in apprehending pasture, while supplemented cows are more selective. As gestation advances, cows increase the selectivity of material ingested to meet greater metabolic demands associated with less consumption capacity. |
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Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancyComportamiento ingestivo de vacas de corte sometidas a diferentes niveles nutricionales en el tercero final del gestaciónComportamento ingestivo de vacas de corte submetidas a diferentes níveis nutricionais no terço final da gestaçãoEstação de pastejoPastagem NativaRuminaçãoSuplementaçãoTempo de pastejo.Grazing stationGrazing timeNative pastureRuminationSupplementation.Estación de pastoreoPasto nativoRumiaSuplementaciónTiempo de pastoreo.The objective of this work was evaluate the ingestive behavior of beef cows submitted to different nutritional levels in the final third of gestation. Eighteen pregnant cows of the Charolais and Nellore breeds were used, divided into treatments: Low (exclusively on natural pasture); Medium (supplementation to meet maintenance requirements); High (supplementation to meet 150% of maintenance requirements). The randomized complete experimental design was used with six replicates per treatment and three evaluation periods. The time spent in other activities increased with pregnancy advancement and as the nutritional level in this period also increased, with values of 0.96; 1.86 and 3.24 hours day-1 for the Low, Medium and High treatments respectively. High treatment cows proved to be more selective, since they had less time per station (6.96 vs 9.18 and 10.19 seconds) and went through a higher number of stations per minute (9.51 vs 7.06 and 7 , 31) in relation to the Low and Medium cows, respectively. Shortest time per bite (1.45 seconds) and consequently a greater number of bite rate (41.86 bites/min) was obtained in the Low cows compared to Medium and High cows. Greater selectivity and grazing efficiency occurred at pregnancy end, with less displacement between stations (1.03 steps) and less time per station (6.42 seconds) resulting in a greater number of stations / minute (10.01 stations). Low-level cows are more efficient in apprehending pasture, while supplemented cows are more selective. As gestation advances, cows increase the selectivity of material ingested to meet greater metabolic demands associated with less consumption capacity.El objetivo de este trabajo fue evaluar el comportamiento ingestivo de vacas de carne sometidas a diferentes niveles nutricionales en el tercio final de la gestación. Se utilizaron 18 vacas preñadas de las razas Charolais y Nellore, divididas en tratamientos: Bajo (exclusivamente en pasto natural); Medio (suplementación para cumplir con los requisitos de mantenimiento); Alto (suplementación para cubrir el 150% de los requisitos de mantenimiento). Se utilizó el diseño experimental completo aleatorizado con seis repeticiones por tratamiento y tres períodos de evaluación. El tiempo destinado a otras actividades se incrementó con el avance de la gestación y como también cuando se incrementó el nivel nutricional en este período, con valores de 0,96; 1,86 y 3,24 horas día-1 para los tratamientos Bajo, Medio y Alto respectivamente. Las vacas del tratamiento Alto demostraron ser más selectivas, ya que tuvieron menos tiempo por estación de alimentación (6,96 vs 9,18 y 10,19 segundos) y pasaron por un mayor número de estaciones por minuto (9,51 vs 7,06 y 7, 31) en relación a las vacas Bajo y Medio, respectivamente. Se obtuvo menos tiempo por bocado (1.45 segundos) y consecuentemente un mayor número de bocados/minuto (41.86 bocados) en las vacas Bajo en relación a las vacas Medio y Alto. Mayor selectividad y eficiencia de pastoreo ocurrió al final de la gestación, con desplazamiento menor entre estaciones (1.03 pasos) y menos tiempo en cada estación (6.42 segundos) resultando en un mayor número de estaciones/minuto (10.01 estaciones). Las vacas de bajo nivel son más eficientes en la captura del pasto, mientras que las vacas suplementadas son más selectivas. Con el avance de la gestación, las vacas aumentan la selectividad del material ingerido para satisfacer mayores demandas metabólicas asociadas con una menor capacidad de consumo.O objetivo deste trabalho foi a valiar o comportamento ingestivo de vacas de corte submetidas à diferentes níveis nutricionais no terço final de gestação. Foram utilizadas 18 vacas prenhas das raças Charolês e Nelore, divididas nos tratamentos: Baixo (exclusivamente em pastagem natural); Médio (suplementação para atender as exigências de mantença); Alto (suplementação para atender 150% das exigências de mantença). O delineamento experimental inteiramento casualizado com seis repetições por tratamento e três períodos de avaliação foi utilizado. O tempo destinado a outras atividades aumentou com o avançar da gestação e a medida que o nível nutricional neste período também aumentou, com valores de 0,96; 1,86 e 3,24 horas dia-1 para os tratamentos Baixo, Médio e Alto respectivamente. Vacas do tratamento Alto demonstraram serem mais seletivas, uma vez que apresentaram menor tempo por estação (6,96 vs 9,18 e 10,19 segundos) e percorreram maior número de estações por minuto (9,51 vs 7,06 e 7,31) em relação às vacas Baixo e Médio, respectivamente. Menor tempo por bocado (1,45 segundos) e consequentemente maior taxa de bocados (41,86 bocados/min) foi obtido nas vacas Baixo em relação às vacas Médio e Alto. Maior seletividade e eficiência de pastejo ocorreram ao final da gestação, com menor deslocamento entre estações (1,03 passos) e menor tempo em cada estação (6,42 segundos) resultando em maior número de estações/minuto (10,01 estações). Vacas do nível Baixo apresentam maior eficiência na apreensão do pasto, enquanto que vacas suplementadas apresentam maior seletividade. Com o avançar da gestação, vacas aumentam a seletividade do material ingerido para atender maiores demandas metabólicas associadas a menor capacidade de consumo.Research, Society and Development2021-06-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1655510.33448/rsd-v10i7.16555Research, Society and Development; Vol. 10 No. 7; e19810716555Research, Society and Development; Vol. 10 Núm. 7; e19810716555Research, Society and Development; v. 10 n. 7; e198107165552525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/16555/14686Copyright (c) 2021 Sander Martinho Adams; John Lenon Klein; Diego Soares Machado; Leonel da Silva Rodrigues; Ivan Luiz Brondani; Dari Celestino Alves Filho; Joziane Michelon Cocco; Fabiana Moro Maidana; Gabriele Amaro de Oliveira; Matheus Dutra Teixeira; Raíssa Lixinski de Souzahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAdams, Sander MartinhoKlein, John LenonMachado, Diego SoaresRodrigues, Leonel da SilvaBrondani, Ivan LuizAlves Filho, Dari CelestinoCocco, Joziane MichelonMaidana, Fabiana MoroOliveira, Gabriele Amaro deTeixeira, Matheus DutraSouza, Raíssa Lixinski de 2021-07-18T21:07:03Zoai:ojs.pkp.sfu.ca:article/16555Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:37:04.514413Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy Comportamiento ingestivo de vacas de corte sometidas a diferentes niveles nutricionales en el tercero final del gestación Comportamento ingestivo de vacas de corte submetidas a diferentes níveis nutricionais no terço final da gestação |
title |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
spellingShingle |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy Adams, Sander Martinho Estação de pastejo Pastagem Nativa Ruminação Suplementação Tempo de pastejo. Grazing station Grazing time Native pasture Rumination Supplementation. Estación de pastoreo Pasto nativo Rumia Suplementación Tiempo de pastoreo. |
title_short |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
title_full |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
title_fullStr |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
title_full_unstemmed |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
title_sort |
Ingestive behavior of beef cows submitted to different nutritional levels in the final third of pregnancy |
author |
Adams, Sander Martinho |
author_facet |
Adams, Sander Martinho Klein, John Lenon Machado, Diego Soares Rodrigues, Leonel da Silva Brondani, Ivan Luiz Alves Filho, Dari Celestino Cocco, Joziane Michelon Maidana, Fabiana Moro Oliveira, Gabriele Amaro de Teixeira, Matheus Dutra Souza, Raíssa Lixinski de |
author_role |
author |
author2 |
Klein, John Lenon Machado, Diego Soares Rodrigues, Leonel da Silva Brondani, Ivan Luiz Alves Filho, Dari Celestino Cocco, Joziane Michelon Maidana, Fabiana Moro Oliveira, Gabriele Amaro de Teixeira, Matheus Dutra Souza, Raíssa Lixinski de |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Adams, Sander Martinho Klein, John Lenon Machado, Diego Soares Rodrigues, Leonel da Silva Brondani, Ivan Luiz Alves Filho, Dari Celestino Cocco, Joziane Michelon Maidana, Fabiana Moro Oliveira, Gabriele Amaro de Teixeira, Matheus Dutra Souza, Raíssa Lixinski de |
dc.subject.por.fl_str_mv |
Estação de pastejo Pastagem Nativa Ruminação Suplementação Tempo de pastejo. Grazing station Grazing time Native pasture Rumination Supplementation. Estación de pastoreo Pasto nativo Rumia Suplementación Tiempo de pastoreo. |
topic |
Estação de pastejo Pastagem Nativa Ruminação Suplementação Tempo de pastejo. Grazing station Grazing time Native pasture Rumination Supplementation. Estación de pastoreo Pasto nativo Rumia Suplementación Tiempo de pastoreo. |
description |
The objective of this work was evaluate the ingestive behavior of beef cows submitted to different nutritional levels in the final third of gestation. Eighteen pregnant cows of the Charolais and Nellore breeds were used, divided into treatments: Low (exclusively on natural pasture); Medium (supplementation to meet maintenance requirements); High (supplementation to meet 150% of maintenance requirements). The randomized complete experimental design was used with six replicates per treatment and three evaluation periods. The time spent in other activities increased with pregnancy advancement and as the nutritional level in this period also increased, with values of 0.96; 1.86 and 3.24 hours day-1 for the Low, Medium and High treatments respectively. High treatment cows proved to be more selective, since they had less time per station (6.96 vs 9.18 and 10.19 seconds) and went through a higher number of stations per minute (9.51 vs 7.06 and 7 , 31) in relation to the Low and Medium cows, respectively. Shortest time per bite (1.45 seconds) and consequently a greater number of bite rate (41.86 bites/min) was obtained in the Low cows compared to Medium and High cows. Greater selectivity and grazing efficiency occurred at pregnancy end, with less displacement between stations (1.03 steps) and less time per station (6.42 seconds) resulting in a greater number of stations / minute (10.01 stations). Low-level cows are more efficient in apprehending pasture, while supplemented cows are more selective. As gestation advances, cows increase the selectivity of material ingested to meet greater metabolic demands associated with less consumption capacity. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-18 |
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/16555 10.33448/rsd-v10i7.16555 |
url |
https://rsdjournal.org/index.php/rsd/article/view/16555 |
identifier_str_mv |
10.33448/rsd-v10i7.16555 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/16555/14686 |
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. 10 No. 7; e19810716555 Research, Society and Development; Vol. 10 Núm. 7; e19810716555 Research, Society and Development; v. 10 n. 7; e19810716555 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 |
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1797052786281545728 |