Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/53847 |
Resumo: | This study evaluated the influence of the quantitative traits measured by real-time ultrasound (adjusted longissimus muscle area [AdjLMA], adjusted rump fat thickness [AdjRFT], and adjusted marbling [AdjMAR]) as well as age at first breeding [AFB] and adjusted weight [AdjWeight], on the probability of occurrence of early pregnancy (EP) in 55 Nellore heifers, and also performed an economic analysis. All calves received supplementation in creep-feeding (ad libitum), and at weaning (average age= 210 ± 30 days; average weight= 241 ± 33 kg) until first breeding by artificial insemination (May to November) all heifers were managed in the same group (two paddocks of 25 ha each evenly covered with Urochloa Marandu Grass) and received protein-energy supplementation (1% of average BW per animal/day). The quantitative variables were collected immediately after timed artificial insemination (average age= 392 ± 27 days; average weight= 431.90 kg), and the pregnancy diagnosis was completed at 30 days following insemination. For economic analysis, two systems were compared (age at first breeding at 13 and 24 months). The greater adjusted weight on the first breeding increased the probability of occurrence of early pregnancy, while the greater adjusted longissimus muscle area reduced. In addition, intensive meat production systems provide greater economic return throughout cow-calf operation. |
id |
UEM-7_58e6023c00086333b7ae571d4bfdb9d5 |
---|---|
oai_identifier_str |
oai:periodicos.uem.br/ojs:article/53847 |
network_acronym_str |
UEM-7 |
network_name_str |
Acta Scientiarum. Animal Sciences (Online) |
repository_id_str |
|
spelling |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding.longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding.This study evaluated the influence of the quantitative traits measured by real-time ultrasound (adjusted longissimus muscle area [AdjLMA], adjusted rump fat thickness [AdjRFT], and adjusted marbling [AdjMAR]) as well as age at first breeding [AFB] and adjusted weight [AdjWeight], on the probability of occurrence of early pregnancy (EP) in 55 Nellore heifers, and also performed an economic analysis. All calves received supplementation in creep-feeding (ad libitum), and at weaning (average age= 210 ± 30 days; average weight= 241 ± 33 kg) until first breeding by artificial insemination (May to November) all heifers were managed in the same group (two paddocks of 25 ha each evenly covered with Urochloa Marandu Grass) and received protein-energy supplementation (1% of average BW per animal/day). The quantitative variables were collected immediately after timed artificial insemination (average age= 392 ± 27 days; average weight= 431.90 kg), and the pregnancy diagnosis was completed at 30 days following insemination. For economic analysis, two systems were compared (age at first breeding at 13 and 24 months). The greater adjusted weight on the first breeding increased the probability of occurrence of early pregnancy, while the greater adjusted longissimus muscle area reduced. In addition, intensive meat production systems provide greater economic return throughout cow-calf operation.This study evaluated the influence of the quantitative traits measured by real-time ultrasound (adjusted longissimus muscle area [AdjLMA], adjusted rump fat thickness [AdjRFT], and adjusted marbling [AdjMAR]) as well as age at first breeding [AFB] and adjusted weight [AdjWeight], on the probability of occurrence of early pregnancy (EP) in 55 Nellore heifers, and also performed an economic analysis. All calves received supplementation in creep-feeding (ad libitum), and at weaning (average age= 210 ± 30 days; average weight= 241 ± 33 kg) until first breeding by artificial insemination (May to November) all heifers were managed in the same group (two paddocks of 25 ha each evenly covered with Urochloa Marandu Grass) and received protein-energy supplementation (1% of average BW per animal/day). The quantitative variables were collected immediately after timed artificial insemination (average age= 392 ± 27 days; average weight= 431.90 kg), and the pregnancy diagnosis was completed at 30 days following insemination. For economic analysis, two systems were compared (age at first breeding at 13 and 24 months). The greater adjusted weight on the first breeding increased the probability of occurrence of early pregnancy, while the greater adjusted longissimus muscle area reduced. In addition, intensive meat production systems provide greater economic return throughout cow-calf operation.Editora da Universidade Estadual de Maringá2022-03-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5384710.4025/actascianimsci.v44i1.53847Acta Scientiarum. Animal Sciences; Vol 44 (2022): Publicação contínua; e53847Acta Scientiarum. Animal Sciences; v. 44 (2022): Publicação contínua; e538471807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/53847/751375153805Copyright (c) 2022 Acta Scientiarum. Animal Scienceshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPaula Junior, Rones deZervoudakis, Joanis Tilemahos Silva, Felipe Gomes da 2022-04-01T18:03:15Zoai:periodicos.uem.br/ojs:article/53847Revistahttp://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:2022-04-01T18:03:15Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
title |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
spellingShingle |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan Paula Junior, Rones de longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. |
title_short |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
title_full |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
title_fullStr |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
title_full_unstemmed |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
title_sort |
Effect of growth and carcass traits on likelihood of early pregnancy in Nellore heifers raised at intensive nutritional plan |
author |
Paula Junior, Rones de |
author_facet |
Paula Junior, Rones de Zervoudakis, Joanis Tilemahos Silva, Felipe Gomes da |
author_role |
author |
author2 |
Zervoudakis, Joanis Tilemahos Silva, Felipe Gomes da |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Paula Junior, Rones de Zervoudakis, Joanis Tilemahos Silva, Felipe Gomes da |
dc.subject.por.fl_str_mv |
longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. |
topic |
longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. longissimus muscle area; marbling; reproductive efficiency; protein-energy supplementation; rump fat; age at first breeding. |
description |
This study evaluated the influence of the quantitative traits measured by real-time ultrasound (adjusted longissimus muscle area [AdjLMA], adjusted rump fat thickness [AdjRFT], and adjusted marbling [AdjMAR]) as well as age at first breeding [AFB] and adjusted weight [AdjWeight], on the probability of occurrence of early pregnancy (EP) in 55 Nellore heifers, and also performed an economic analysis. All calves received supplementation in creep-feeding (ad libitum), and at weaning (average age= 210 ± 30 days; average weight= 241 ± 33 kg) until first breeding by artificial insemination (May to November) all heifers were managed in the same group (two paddocks of 25 ha each evenly covered with Urochloa Marandu Grass) and received protein-energy supplementation (1% of average BW per animal/day). The quantitative variables were collected immediately after timed artificial insemination (average age= 392 ± 27 days; average weight= 431.90 kg), and the pregnancy diagnosis was completed at 30 days following insemination. For economic analysis, two systems were compared (age at first breeding at 13 and 24 months). The greater adjusted weight on the first breeding increased the probability of occurrence of early pregnancy, while the greater adjusted longissimus muscle area reduced. In addition, intensive meat production systems provide greater economic return throughout cow-calf operation. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-03-07 |
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/53847 10.4025/actascianimsci.v44i1.53847 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/53847 |
identifier_str_mv |
10.4025/actascianimsci.v44i1.53847 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/53847/751375153805 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Acta Scientiarum. Animal Sciences http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Acta Scientiarum. Animal Sciences http://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 |
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 44 (2022): Publicação contínua; e53847 Acta Scientiarum. Animal Sciences; v. 44 (2022): Publicação contínua; e53847 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_ |
1799315363625697280 |