Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/11999 |
Resumo: | The objective with this research was to evaluate the dairy cows intake behavior grazing Brachiaria brizantha submitted to different levels of concentrate supplementation in the diet. Used 16 lactating cows ½ Holstein x ½ Zebu, with an average of 80 ±10.14 days of lactation and body weight of 454.7 ± 54.51 kg. The animals were distributed in four treatments, using a 4x4 Latin square. The evaluation of behavior was done every ten minutes, during 24 hours on the 16th day of period. We used analysis of variance and regression probability of 0.05. The time spent grazing, ruminating and other activities, the numbers of grazing, ruminating, of bites per day and chews per cake, the grazing times, total power and total chewing, bit rate, time to swallow; time per bolus ruminated; chewing speed and power efficiency for NDF were not altered by increased levels of concentrate. The time of trough, the trough period, the bit size, the chews time for bolus, feeding efficiency for DM, NFC, and TDN and rumination efficiency linearly increased. Periods of rumination, deglutition bits, number of rumination chews per day, decreased linearly with increasing levels of concentrate. Significant quadratic effect of concentrate level on the number of periods in other activities and over time on other activities. Supplementation with 33.8% concentrate in the diet of cows grazing not promote changes in the activity of grazing, ruminating and other activities, but increases the time of trough. The increase in concentrate diet improves the efficiencies of feeding and rumination. |
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Semina. Ciências Agrárias (Online) |
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Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at dietAvaliação do comportamento ingestivo de vacas leiteiras em pastejo de Brachiaria brizantha recebendo diferentes teores de concentrado na dietaCattleIntakeGrazingProductionRuminant.BovinoConsumoPastagemProduçãoRuminante.Nutrição AnimalThe objective with this research was to evaluate the dairy cows intake behavior grazing Brachiaria brizantha submitted to different levels of concentrate supplementation in the diet. Used 16 lactating cows ½ Holstein x ½ Zebu, with an average of 80 ±10.14 days of lactation and body weight of 454.7 ± 54.51 kg. The animals were distributed in four treatments, using a 4x4 Latin square. The evaluation of behavior was done every ten minutes, during 24 hours on the 16th day of period. We used analysis of variance and regression probability of 0.05. The time spent grazing, ruminating and other activities, the numbers of grazing, ruminating, of bites per day and chews per cake, the grazing times, total power and total chewing, bit rate, time to swallow; time per bolus ruminated; chewing speed and power efficiency for NDF were not altered by increased levels of concentrate. The time of trough, the trough period, the bit size, the chews time for bolus, feeding efficiency for DM, NFC, and TDN and rumination efficiency linearly increased. Periods of rumination, deglutition bits, number of rumination chews per day, decreased linearly with increasing levels of concentrate. Significant quadratic effect of concentrate level on the number of periods in other activities and over time on other activities. Supplementation with 33.8% concentrate in the diet of cows grazing not promote changes in the activity of grazing, ruminating and other activities, but increases the time of trough. The increase in concentrate diet improves the efficiencies of feeding and rumination.Objetivou-se avaliar o comportamento ingestivo de vacas leiteiras em pastagem de Brachiaria brizantha submetidas a diferentes níveis de suplementação concentrada na dieta. Utilizaram-se 16 vacas lactantes ½ Holandês × ½ Zebu, com média de 80 ± 10,14 dias de lactação e peso corporal de 454,7 ± 54,51 kg. Os animais foram distribuídos em quatro tratamentos, utilizando-se um quadrado latino 4 × 4. O comportamento foi avaliado a cada dez minutos, durante 24 horas no 16º dia de cada período. Utilizou-se a análise de variância e regressão a 0,05 de probabilidade. Os tempos despendidos em pastejo, ruminação e outras atividades; os números de pastejo, ruminação, de bocados por dia e de mastigações merícicas por bolo; os tempos de pastejo, alimentação total e mastigação total; a taxa de bocado; o tempo de deglutição; o tempo por bolo ruminado; a velocidade de mastigação e a eficiência de alimentação para FDN não sofreram alterações com o aumento nos teores de concentrado na dieta. O tempo de cocho, o período de cocho, o tamanho de bocado, o tempo por mastigação de bolo, a eficiência de alimentação para MS, CNF, NDT e a eficiência de ruminação cresceram linearmente. O período de ruminação, o número de bocados por deglutição, o número de bolos ruminados por dia e o número de mastigações merícicas por dia decresceram linearmente com o aumento dos teores de concentrado na dieta. Houve efeito quadrático do teor de concentrado sobre o número de períodos em outras atividades e sobre o tempo em outras atividades. A suplementação com até 33,8% de concentrado na dieta de vacas em pastejo não promovem alterações nas atividades de pastejo e ruminação nem o tempo gasto em outras atividades, porém aumenta o tempo que os animais permanecem no cocho. O aumento no teor de concentrado da dieta melhora as eficiências de alimentação e ruminação.UEL2013-12-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Científicaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1199910.5433/1679-0359.2013v34n6p2977Semina: Ciências Agrárias; Vol. 34 No. 6 (2013); 2977-2990Semina: Ciências Agrárias; v. 34 n. 6 (2013); 2977-29901679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11999/pdf_144Mendes, Fabrício Bacelar LimaSilva, Fabiano Ferreira daSilva, Robério RodriguesCarvalho, Gleidson Giordano Pinto deCardoso, Elisangela OliveiraRocha Neto, Aires LimaOliveira, Julinessa SilvaCosta, Lucas TeixeiraSantana Júnior, Hermógenes Almeida dePinheiro, Alyson Andradeinfo:eu-repo/semantics/openAccess2015-11-19T18:36:19Zoai:ojs.pkp.sfu.ca:article/11999Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:36:19Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet Avaliação do comportamento ingestivo de vacas leiteiras em pastejo de Brachiaria brizantha recebendo diferentes teores de concentrado na dieta |
title |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
spellingShingle |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet Mendes, Fabrício Bacelar Lima Cattle Intake Grazing Production Ruminant. Bovino Consumo Pastagem Produção Ruminante. Nutrição Animal |
title_short |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
title_full |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
title_fullStr |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
title_full_unstemmed |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
title_sort |
Evaluation of dairy cows intake behavior grazing Brachiaria brizantha fed different levels of concentrate at diet |
author |
Mendes, Fabrício Bacelar Lima |
author_facet |
Mendes, Fabrício Bacelar Lima Silva, Fabiano Ferreira da Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto de Cardoso, Elisangela Oliveira Rocha Neto, Aires Lima Oliveira, Julinessa Silva Costa, Lucas Teixeira Santana Júnior, Hermógenes Almeida de Pinheiro, Alyson Andrade |
author_role |
author |
author2 |
Silva, Fabiano Ferreira da Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto de Cardoso, Elisangela Oliveira Rocha Neto, Aires Lima Oliveira, Julinessa Silva Costa, Lucas Teixeira Santana Júnior, Hermógenes Almeida de Pinheiro, Alyson Andrade |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Mendes, Fabrício Bacelar Lima Silva, Fabiano Ferreira da Silva, Robério Rodrigues Carvalho, Gleidson Giordano Pinto de Cardoso, Elisangela Oliveira Rocha Neto, Aires Lima Oliveira, Julinessa Silva Costa, Lucas Teixeira Santana Júnior, Hermógenes Almeida de Pinheiro, Alyson Andrade |
dc.subject.por.fl_str_mv |
Cattle Intake Grazing Production Ruminant. Bovino Consumo Pastagem Produção Ruminante. Nutrição Animal |
topic |
Cattle Intake Grazing Production Ruminant. Bovino Consumo Pastagem Produção Ruminante. Nutrição Animal |
description |
The objective with this research was to evaluate the dairy cows intake behavior grazing Brachiaria brizantha submitted to different levels of concentrate supplementation in the diet. Used 16 lactating cows ½ Holstein x ½ Zebu, with an average of 80 ±10.14 days of lactation and body weight of 454.7 ± 54.51 kg. The animals were distributed in four treatments, using a 4x4 Latin square. The evaluation of behavior was done every ten minutes, during 24 hours on the 16th day of period. We used analysis of variance and regression probability of 0.05. The time spent grazing, ruminating and other activities, the numbers of grazing, ruminating, of bites per day and chews per cake, the grazing times, total power and total chewing, bit rate, time to swallow; time per bolus ruminated; chewing speed and power efficiency for NDF were not altered by increased levels of concentrate. The time of trough, the trough period, the bit size, the chews time for bolus, feeding efficiency for DM, NFC, and TDN and rumination efficiency linearly increased. Periods of rumination, deglutition bits, number of rumination chews per day, decreased linearly with increasing levels of concentrate. Significant quadratic effect of concentrate level on the number of periods in other activities and over time on other activities. Supplementation with 33.8% concentrate in the diet of cows grazing not promote changes in the activity of grazing, ruminating and other activities, but increases the time of trough. The increase in concentrate diet improves the efficiencies of feeding and rumination. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-11 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Científica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11999 10.5433/1679-0359.2013v34n6p2977 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11999 |
identifier_str_mv |
10.5433/1679-0359.2013v34n6p2977 |
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/11999/pdf_144 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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. 34 No. 6 (2013); 2977-2990 Semina: Ciências Agrárias; v. 34 n. 6 (2013); 2977-2990 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_ |
1799306067152207872 |