Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11250-023-03600-9 http://hdl.handle.net/11449/249092 |
Resumo: | The early attainment of puberty in heifers is essential for the profitability of the cow-calf farm. This study aimed to evaluate the impact of juvenile average daily gain (ADG) and sire’s expected progeny difference (EPD) on puberty of crossbred beef heifers. Sixty Angus × Nellore heifers early weaned (age = 102 ± 4.3 d; initial BW = 103 ± 4.7 kg) were used in a 2 × 2 factorial arrangement. The factor 1 was the sire’s EPD for scrotal circumference, in which heifers born from sires with positive EPD were considered precocious (P), and heifers born from sires with negative EPD were considered non-precocious (NP). The factor 2 was the high (HG; ADG = 0.9 kg; ad libitum) and medium ADG (MG; ADG = 0.7 kg) from 3rd to 7th month of age (1st phase). After 1st phase until puberty, all heifers were fed ad libitum (2nd phase). Statistical analysis was performed by SAS. There was an interaction between factors for DMI in the 1st phase (P = 0.02), which PHG heifers had higher DMI than NPHG. There was no effect on puberty rate, BW, age and BCS at puberty comparing HG vs. MG. However, favorable sires’ EPD for scrotal circumference induced a higher proportion of puberty (P 87% vs. NP 59%) at 15 months of age. Thus, the ADG in juvenile age did not affect puberty rate, but sires with positive EPD increased puberty rate of Angus × Nellore heifers in heifers fed a high gain diet. |
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Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifersCompensatory growthIGF-1InsulinPuberty rateSexual precocityThe early attainment of puberty in heifers is essential for the profitability of the cow-calf farm. This study aimed to evaluate the impact of juvenile average daily gain (ADG) and sire’s expected progeny difference (EPD) on puberty of crossbred beef heifers. Sixty Angus × Nellore heifers early weaned (age = 102 ± 4.3 d; initial BW = 103 ± 4.7 kg) were used in a 2 × 2 factorial arrangement. The factor 1 was the sire’s EPD for scrotal circumference, in which heifers born from sires with positive EPD were considered precocious (P), and heifers born from sires with negative EPD were considered non-precocious (NP). The factor 2 was the high (HG; ADG = 0.9 kg; ad libitum) and medium ADG (MG; ADG = 0.7 kg) from 3rd to 7th month of age (1st phase). After 1st phase until puberty, all heifers were fed ad libitum (2nd phase). Statistical analysis was performed by SAS. There was an interaction between factors for DMI in the 1st phase (P = 0.02), which PHG heifers had higher DMI than NPHG. There was no effect on puberty rate, BW, age and BCS at puberty comparing HG vs. MG. However, favorable sires’ EPD for scrotal circumference induced a higher proportion of puberty (P 87% vs. NP 59%) at 15 months of age. Thus, the ADG in juvenile age did not affect puberty rate, but sires with positive EPD increased puberty rate of Angus × Nellore heifers in heifers fed a high gain diet.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Nutrição e Produção Animal Faculdade de Medicina Veterinária e Zootecnia (FMVZ/USP) Universidade de São Paulo, SPInstituto de Ciências Sociais Educação e Zootecnia (ICSEZ)) Universidade Federal do Amazonas (UFAM), AMFaculdade de Zootecnia e Engenharia de Alimentos Universidade de São Paulo, SPDepartamento de Biologia e Zootecnia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), SPFaculdade de Medicina Veterinária e Zootecnia Universidade Estadual Paulista “Júlio de Mesquita Filho” (FMVZ/Unesp), SPDepartamento de Zootecnia Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ/USP) Universidade de São Paulo, SPDepartamento de Biologia e Zootecnia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), SPFaculdade de Medicina Veterinária e Zootecnia Universidade Estadual Paulista “Júlio de Mesquita Filho” (FMVZ/Unesp), SPUniversidade de São Paulo (USP)Universidade Federal do Amazonas (UFAM)Universidade Estadual Paulista (UNESP)Barroso, José Paulo Romande Castro Ferraz Junior, Marcos ViniciusOliveira, Gabriela BagioMiszura, Alexandre ArantesBertoloni, Analisa VasquesMartins, André StortiBaggio, MarceloPolizel, Daniel Montanher [UNESP]Biava, Janaina Socolovski [UNESP]Ferreira, Evandro MaiaPires, Alexandre Vaz2023-07-29T14:02:10Z2023-07-29T14:02:10Z2023-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s11250-023-03600-9Tropical Animal Health and Production, v. 55, n. 3, 2023.1573-74380049-4747http://hdl.handle.net/11449/24909210.1007/s11250-023-03600-92-s2.0-85160588905Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Animal Health and Productioninfo:eu-repo/semantics/openAccess2023-07-29T14:02:10Zoai:repositorio.unesp.br:11449/249092Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T14:02:10Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
title |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
spellingShingle |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers Barroso, José Paulo Roman Compensatory growth IGF-1 Insulin Puberty rate Sexual precocity |
title_short |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
title_full |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
title_fullStr |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
title_full_unstemmed |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
title_sort |
Effect of sires’ expected progeny difference for scrotal circumference and juvenile ADG on the puberty of crossbred beef heifers |
author |
Barroso, José Paulo Roman |
author_facet |
Barroso, José Paulo Roman de Castro Ferraz Junior, Marcos Vinicius Oliveira, Gabriela Bagio Miszura, Alexandre Arantes Bertoloni, Analisa Vasques Martins, André Storti Baggio, Marcelo Polizel, Daniel Montanher [UNESP] Biava, Janaina Socolovski [UNESP] Ferreira, Evandro Maia Pires, Alexandre Vaz |
author_role |
author |
author2 |
de Castro Ferraz Junior, Marcos Vinicius Oliveira, Gabriela Bagio Miszura, Alexandre Arantes Bertoloni, Analisa Vasques Martins, André Storti Baggio, Marcelo Polizel, Daniel Montanher [UNESP] Biava, Janaina Socolovski [UNESP] Ferreira, Evandro Maia Pires, Alexandre Vaz |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Federal do Amazonas (UFAM) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Barroso, José Paulo Roman de Castro Ferraz Junior, Marcos Vinicius Oliveira, Gabriela Bagio Miszura, Alexandre Arantes Bertoloni, Analisa Vasques Martins, André Storti Baggio, Marcelo Polizel, Daniel Montanher [UNESP] Biava, Janaina Socolovski [UNESP] Ferreira, Evandro Maia Pires, Alexandre Vaz |
dc.subject.por.fl_str_mv |
Compensatory growth IGF-1 Insulin Puberty rate Sexual precocity |
topic |
Compensatory growth IGF-1 Insulin Puberty rate Sexual precocity |
description |
The early attainment of puberty in heifers is essential for the profitability of the cow-calf farm. This study aimed to evaluate the impact of juvenile average daily gain (ADG) and sire’s expected progeny difference (EPD) on puberty of crossbred beef heifers. Sixty Angus × Nellore heifers early weaned (age = 102 ± 4.3 d; initial BW = 103 ± 4.7 kg) were used in a 2 × 2 factorial arrangement. The factor 1 was the sire’s EPD for scrotal circumference, in which heifers born from sires with positive EPD were considered precocious (P), and heifers born from sires with negative EPD were considered non-precocious (NP). The factor 2 was the high (HG; ADG = 0.9 kg; ad libitum) and medium ADG (MG; ADG = 0.7 kg) from 3rd to 7th month of age (1st phase). After 1st phase until puberty, all heifers were fed ad libitum (2nd phase). Statistical analysis was performed by SAS. There was an interaction between factors for DMI in the 1st phase (P = 0.02), which PHG heifers had higher DMI than NPHG. There was no effect on puberty rate, BW, age and BCS at puberty comparing HG vs. MG. However, favorable sires’ EPD for scrotal circumference induced a higher proportion of puberty (P 87% vs. NP 59%) at 15 months of age. Thus, the ADG in juvenile age did not affect puberty rate, but sires with positive EPD increased puberty rate of Angus × Nellore heifers in heifers fed a high gain diet. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T14:02:10Z 2023-07-29T14:02:10Z 2023-06-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s11250-023-03600-9 Tropical Animal Health and Production, v. 55, n. 3, 2023. 1573-7438 0049-4747 http://hdl.handle.net/11449/249092 10.1007/s11250-023-03600-9 2-s2.0-85160588905 |
url |
http://dx.doi.org/10.1007/s11250-023-03600-9 http://hdl.handle.net/11449/249092 |
identifier_str_mv |
Tropical Animal Health and Production, v. 55, n. 3, 2023. 1573-7438 0049-4747 10.1007/s11250-023-03600-9 2-s2.0-85160588905 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Tropical Animal Health and Production |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965411181068288 |