Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13191 |
Resumo: | The study was conducted to compare different methodologies for evaluation of ingestive behavior of heifers supplemented in grazing. The experiment was conducted at Princesa do Mateiro farm, Ribeirao do Largo, Bahia. Were used 30 heifers with blood level 5/8 Guzera milk lineage and 3/8 Holstein, with an average of 18 months of age and body weight of 187 ± 13.1 kg. The treatments were: Duration of avaliation (24, 12 and eight hours) of observation intervals (10, 20 and 30 minutes); repetitions for observation (three, two and one) shifts of observation (two and one). The behavior evaluation was performed on day 25th, 26th, 27th and 28th of each period, then a total of four ratings. The percentage of grazing activity on the duration of 8h and 12h evaluation differed from the standard evaluation period of 24 hours (P<0.05). The duration of evaluation tests (8h and 12h) showed differences in duration of 24 hours to evaluate the percentages of rumination (P<0.05). As for the percentage of other activities, no difference was observed between duration evaluation and standard tests (P>0.05). For grazing time, rumination, feeding at the trough, other activities, total feeding and total chewing have not been verified statistical differences between the ranges of observations 20 and 30 minutes compared with 10 minutes (P<0.05). The duration of evaluation of 24 hours is recommended for evaluation of ingestive behavior in terms of nutritional and metabolic parameters, as other promote distortion of the data as a function of the intensity of activities throughout the day. |
id |
UEL-11_68daef6327092d4f8f1fee390d6de876 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/13191 |
network_acronym_str |
UEL-11 |
network_name_str |
Semina. Ciências Agrárias (Online) |
repository_id_str |
|
spelling |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazingMetodologias para avaliação do comportamento ingestivo de novilhas suplementadas a pastoBitCattleGrazingIntakeMethods.BocadoBovinoConsumoMétodosPastejo.Comportamento animalThe study was conducted to compare different methodologies for evaluation of ingestive behavior of heifers supplemented in grazing. The experiment was conducted at Princesa do Mateiro farm, Ribeirao do Largo, Bahia. Were used 30 heifers with blood level 5/8 Guzera milk lineage and 3/8 Holstein, with an average of 18 months of age and body weight of 187 ± 13.1 kg. The treatments were: Duration of avaliation (24, 12 and eight hours) of observation intervals (10, 20 and 30 minutes); repetitions for observation (three, two and one) shifts of observation (two and one). The behavior evaluation was performed on day 25th, 26th, 27th and 28th of each period, then a total of four ratings. The percentage of grazing activity on the duration of 8h and 12h evaluation differed from the standard evaluation period of 24 hours (P<0.05). The duration of evaluation tests (8h and 12h) showed differences in duration of 24 hours to evaluate the percentages of rumination (P<0.05). As for the percentage of other activities, no difference was observed between duration evaluation and standard tests (P>0.05). For grazing time, rumination, feeding at the trough, other activities, total feeding and total chewing have not been verified statistical differences between the ranges of observations 20 and 30 minutes compared with 10 minutes (P<0.05). The duration of evaluation of 24 hours is recommended for evaluation of ingestive behavior in terms of nutritional and metabolic parameters, as other promote distortion of the data as a function of the intensity of activities throughout the day.O estudo foi realizado com o objetivo de comparar diferentes metodologias para avaliação do comportamento ingestivo de novilhas suplementadas a pasto. O experimento foi conduzido na fazenda Princesa do Mateiro, município de Ribeirão do Largo, Bahia. Foram utilizadas 30 novilhas com grau de sangue 5/8 Guzerá linhagem leiteira e 3/8 Holandesa, com média de 18 meses de idade e peso corporal médio de 187 ± 13,1 kg. Os tratamentos foram: Duração de avaliação (24, 12 e oito horas); Intervalos de observação (10, 20 e 30 minutos); Repetições por observação (três, duas e uma); Turnos de observação (dois e um). A avaliação do comportamento foi realizada no 25º, 26º, 27º e 28º dia de cada período, totalizando então quatro avaliações. Os percentuais da atividade de pastejo da duração de avaliação 8h e 12h diferiram da duração de avaliação padrão de 24h (P<0,05). A duração de avaliação em testes (8h e 12h) apresentou diferenças da duração de avaliação de 24 horas para os percentuais de ruminação (P<0,05). Já para os percentuais de outras atividades, não foi verificado diferenças entre a duração de avaliação em testes e a padrão (P>0,05). Para o tempo de pastejo, ruminação, alimentação no cocho, outras atividades, alimentação total e mastigação total não foram verificados diferenças estatísticas entre os intervalos de observações 20 e 30 minutos quando comparados com o de 10 minutos (P>0,05). A duração de avaliação de 24 horas é a recomendada para avaliação do comportamento ingestivo em termos de parâmetros nutricionais e metabólicos, pois as demais promovem distorção dos dados em função da variação da intensidade das atividades ao longo do dia.UEL2014-06-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1319110.5433/1679-0359.2014v35n3p1475Semina: Ciências Agrárias; Vol. 35 No. 3 (2014); 1475-1486Semina: Ciências Agrárias; v. 35 n. 3 (2014); 1475-14861679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13191/pdf_311Copyright (c) 2014 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSantana Junior, Hermógenes Almeida deSilva, Robério RodriguesCarvalho, Gleidson Giordano PintoSilva, Fabiano FerreiraCosta, Patrícia BarcelosMendes, Fabricio Bacelar LimaPinheiro, Alyson AndradeSantana, Elizangela Oliveira CardosoAbreu Filho, GeorgeTrindade Júnior, Geraldo2023-01-16T15:16:31Zoai:ojs.pkp.sfu.ca:article/13191Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-16T15:16:31Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing Metodologias para avaliação do comportamento ingestivo de novilhas suplementadas a pasto |
title |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
spellingShingle |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing Santana Junior, Hermógenes Almeida de Bit Cattle Grazing Intake Methods. Bocado Bovino Consumo Métodos Pastejo. Comportamento animal |
title_short |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
title_full |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
title_fullStr |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
title_full_unstemmed |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
title_sort |
Methodologies for evaluation of ingestive behavior of heifers supplemented in grazing |
author |
Santana Junior, Hermógenes Almeida de |
author_facet |
Santana Junior, Hermógenes Almeida de Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto Silva, Fabiano Ferreira Costa, Patrícia Barcelos Mendes, Fabricio Bacelar Lima Pinheiro, Alyson Andrade Santana, Elizangela Oliveira Cardoso Abreu Filho, George Trindade Júnior, Geraldo |
author_role |
author |
author2 |
Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto Silva, Fabiano Ferreira Costa, Patrícia Barcelos Mendes, Fabricio Bacelar Lima Pinheiro, Alyson Andrade Santana, Elizangela Oliveira Cardoso Abreu Filho, George Trindade Júnior, Geraldo |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Santana Junior, Hermógenes Almeida de Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto Silva, Fabiano Ferreira Costa, Patrícia Barcelos Mendes, Fabricio Bacelar Lima Pinheiro, Alyson Andrade Santana, Elizangela Oliveira Cardoso Abreu Filho, George Trindade Júnior, Geraldo |
dc.subject.por.fl_str_mv |
Bit Cattle Grazing Intake Methods. Bocado Bovino Consumo Métodos Pastejo. Comportamento animal |
topic |
Bit Cattle Grazing Intake Methods. Bocado Bovino Consumo Métodos Pastejo. Comportamento animal |
description |
The study was conducted to compare different methodologies for evaluation of ingestive behavior of heifers supplemented in grazing. The experiment was conducted at Princesa do Mateiro farm, Ribeirao do Largo, Bahia. Were used 30 heifers with blood level 5/8 Guzera milk lineage and 3/8 Holstein, with an average of 18 months of age and body weight of 187 ± 13.1 kg. The treatments were: Duration of avaliation (24, 12 and eight hours) of observation intervals (10, 20 and 30 minutes); repetitions for observation (three, two and one) shifts of observation (two and one). The behavior evaluation was performed on day 25th, 26th, 27th and 28th of each period, then a total of four ratings. The percentage of grazing activity on the duration of 8h and 12h evaluation differed from the standard evaluation period of 24 hours (P<0.05). The duration of evaluation tests (8h and 12h) showed differences in duration of 24 hours to evaluate the percentages of rumination (P<0.05). As for the percentage of other activities, no difference was observed between duration evaluation and standard tests (P>0.05). For grazing time, rumination, feeding at the trough, other activities, total feeding and total chewing have not been verified statistical differences between the ranges of observations 20 and 30 minutes compared with 10 minutes (P<0.05). The duration of evaluation of 24 hours is recommended for evaluation of ingestive behavior in terms of nutritional and metabolic parameters, as other promote distortion of the data as a function of the intensity of activities throughout the day. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-25 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13191 10.5433/1679-0359.2014v35n3p1475 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13191 |
identifier_str_mv |
10.5433/1679-0359.2014v35n3p1475 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13191/pdf_311 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2014 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2014 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. 35 No. 3 (2014); 1475-1486 Semina: Ciências Agrárias; v. 35 n. 3 (2014); 1475-1486 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_ |
1799306068299350016 |