Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6464 |
Resumo: | This study evaluated the characteristics: age, weight, daily weight gain (DWG), dry matter intake (DMI), feed conversion (FC), feed efficiency (FE) and residual feed intake (RFI) of young bulls of the Polled Nellore breed in a performance test. Thirty bulls, with initial age of 243.6±30.4 days were used. Dry Matter Intake (DMI) was quantified daily for each animal. The animals were classified by the performance test index (PTI). RFI did not show differences (p > 0.05) among the averages of the groups. The variables weight and DWG were not correlated with RFI. There was high correlation between RFI and FC. FE and FC showed correlation with RFI. The PTI showed high correlation with DMI (r = 0.75). When comparing mean RFI among the bulls, it was observed that less efficient animals showed a DMI 27.7% superior to the most efficient animals. The variable PTI did not identify the most efficient animals in dry matter utilization, because there were low correlations with FC, FE and RFI. It can be concluded that the bull selection for PTI selects those that shows more weight gain; however, they have more DMI. It is possible to improve the methodology for selection with the inclusion of RFI. |
id |
UEM-7_621f57490c0889052d9034d288610653 |
---|---|
oai_identifier_str |
oai:periodicos.uem.br/ojs:article/6464 |
network_acronym_str |
UEM-7 |
network_name_str |
Acta Scientiarum. Animal Sciences (Online) |
repository_id_str |
|
spelling |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464Avaliação do consumo alimentar residual em touros jovens da raça Nelore Mocho em prova de desempenho animal - DOI: 10.4025/actascianimsci.v30i4.6464beef cattlefeed efficiencyimproveselection.bovinos de corteeficiência alimentarmelhoramentoseleção.This study evaluated the characteristics: age, weight, daily weight gain (DWG), dry matter intake (DMI), feed conversion (FC), feed efficiency (FE) and residual feed intake (RFI) of young bulls of the Polled Nellore breed in a performance test. Thirty bulls, with initial age of 243.6±30.4 days were used. Dry Matter Intake (DMI) was quantified daily for each animal. The animals were classified by the performance test index (PTI). RFI did not show differences (p > 0.05) among the averages of the groups. The variables weight and DWG were not correlated with RFI. There was high correlation between RFI and FC. FE and FC showed correlation with RFI. The PTI showed high correlation with DMI (r = 0.75). When comparing mean RFI among the bulls, it was observed that less efficient animals showed a DMI 27.7% superior to the most efficient animals. The variable PTI did not identify the most efficient animals in dry matter utilization, because there were low correlations with FC, FE and RFI. It can be concluded that the bull selection for PTI selects those that shows more weight gain; however, they have more DMI. It is possible to improve the methodology for selection with the inclusion of RFI.Este trabalho avaliou as características: idade, peso, ganho de peso diário (GPD), ingestão de matéria seca (IMS), conversão alimentar (CA), eficiência alimentar (EA) e consumo alimentar residual (CAR) de tourinhos da raça Nelore Mocho em prova de desempenho animal (PDA). Foram utilizados 30 animais, inteiros, com idade inicial de 243,6±30,4 dias. Alimentos e sobras individuais foram quantificados diariamente. A classificação baseou-se no índice de prova de desempenho animal (IPDA). Para CAR não houve diferença (p > 0,05) entre a média dos grupos. As variáveis peso e GPD não foram correlacionadas com CAR. Houve alta correlação entre CAR e CA. EA e CA apresentaram correlação com CAR. O IPDA apresentou alta correlação com a IMS (r = 0,75). Comparado o CAR médio entre os tourinhos, observou-se que animais menos eficientes apresentaram IMS 27,7% superior aos animais mais eficientes. A variável IPDA não identificou os mais eficientes na utilização de alimentos, pois houve baixas correlações com CA, EA e CAR. Pode-se concluir que a seleção de tourinhos pelo IPDA elege os que ganham mais peso, porém estes apresentam maior IMS. É possível aprimorar a metodologia de seleção com a inclusão do CAR.Editora da Universidade Estadual de Maringá2009-03-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/646410.4025/actascianimsci.v30i4.6464Acta Scientiarum. Animal Sciences; Vol 30 No 4 (2008); 425-433Acta Scientiarum. Animal Sciences; v. 30 n. 4 (2008); 425-4331807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6464/6464Bonin, Marcio de NadaiDemarchi, João José Assumpção de AbreuMizubuti, Ivone YurikaRibeiro, Edson Luis de AzambujaManella, Marcelo de QueirozPereira, Elzânia Salesinfo:eu-repo/semantics/openAccess2024-05-17T13:04:09Zoai:periodicos.uem.br/ojs:article/6464Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2024-05-17T13:04:09Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 Avaliação do consumo alimentar residual em touros jovens da raça Nelore Mocho em prova de desempenho animal - DOI: 10.4025/actascianimsci.v30i4.6464 |
title |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
spellingShingle |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 Bonin, Marcio de Nadai beef cattle feed efficiency improve selection. bovinos de corte eficiência alimentar melhoramento seleção. |
title_short |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
title_full |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
title_fullStr |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
title_full_unstemmed |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
title_sort |
Evaluation of residual feed intake in young bulls of the Polled Nellore breed in a performance test - DOI: 10.4025/actascianimsci.v30i4.6464 |
author |
Bonin, Marcio de Nadai |
author_facet |
Bonin, Marcio de Nadai Demarchi, João José Assumpção de Abreu Mizubuti, Ivone Yurika Ribeiro, Edson Luis de Azambuja Manella, Marcelo de Queiroz Pereira, Elzânia Sales |
author_role |
author |
author2 |
Demarchi, João José Assumpção de Abreu Mizubuti, Ivone Yurika Ribeiro, Edson Luis de Azambuja Manella, Marcelo de Queiroz Pereira, Elzânia Sales |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bonin, Marcio de Nadai Demarchi, João José Assumpção de Abreu Mizubuti, Ivone Yurika Ribeiro, Edson Luis de Azambuja Manella, Marcelo de Queiroz Pereira, Elzânia Sales |
dc.subject.por.fl_str_mv |
beef cattle feed efficiency improve selection. bovinos de corte eficiência alimentar melhoramento seleção. |
topic |
beef cattle feed efficiency improve selection. bovinos de corte eficiência alimentar melhoramento seleção. |
description |
This study evaluated the characteristics: age, weight, daily weight gain (DWG), dry matter intake (DMI), feed conversion (FC), feed efficiency (FE) and residual feed intake (RFI) of young bulls of the Polled Nellore breed in a performance test. Thirty bulls, with initial age of 243.6±30.4 days were used. Dry Matter Intake (DMI) was quantified daily for each animal. The animals were classified by the performance test index (PTI). RFI did not show differences (p > 0.05) among the averages of the groups. The variables weight and DWG were not correlated with RFI. There was high correlation between RFI and FC. FE and FC showed correlation with RFI. The PTI showed high correlation with DMI (r = 0.75). When comparing mean RFI among the bulls, it was observed that less efficient animals showed a DMI 27.7% superior to the most efficient animals. The variable PTI did not identify the most efficient animals in dry matter utilization, because there were low correlations with FC, FE and RFI. It can be concluded that the bull selection for PTI selects those that shows more weight gain; however, they have more DMI. It is possible to improve the methodology for selection with the inclusion of RFI. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-03-05 |
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://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6464 10.4025/actascianimsci.v30i4.6464 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6464 |
identifier_str_mv |
10.4025/actascianimsci.v30i4.6464 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6464/6464 |
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 |
Editora da Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Editora da Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Animal Sciences; Vol 30 No 4 (2008); 425-433 Acta Scientiarum. Animal Sciences; v. 30 n. 4 (2008); 425-433 1807-8672 1806-2636 reponame:Acta Scientiarum. Animal Sciences (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Animal Sciences (Online) |
collection |
Acta Scientiarum. Animal Sciences (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com |
_version_ |
1799315359627476992 |