Characterization of dystocia in a herd of Holstein dairy cows in Brazil

Detalhes bibliográficos
Autor(a) principal: Lourenço, Jean Carlos
Data de Publicação: 2022
Outros Autores: Ossani, Paulo Cesar, Viera Salles, Márcia Saladini, Istvan Bánkuti , Ferenc, de Almeida , Rodrigo, Rossoni, Diogo Francisco, Cardozo de Osorio, Jesús Alberto, dos Santos, Geraldo Tadeu
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Ciência animal brasileira (Online)
Texto Completo: https://revistas.ufg.br/vet/article/view/72508
Resumo: The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87–0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.Keywords: calving assistance; calving management; milk production; multivariate analysis
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spelling Characterization of dystocia in a herd of Holstein dairy cows in BrazilCaracterização da distocia em um rebanho de vacas da raça Holandesa no Brasil The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87–0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.Keywords: calving assistance; calving management; milk production; multivariate analysisO objetivo deste estudo foi caracterizar os partos com leve ou severa dificuldade e diferenciá-los com base no desempenho produtivo e reprodutivo de vacas leiteiras. Os partos foram agrupados em partos sem assistência, partos com baixa assistência e partos com elevada assistência. O banco de dados original continha 1902 registro de partos que foram obtidos de uma grande fazenda comercial localizada no Sudeste do Brasil. A análise fatorial foi aplicada através do programa estatístico SAS® Studio 3.8 por meio de procedimento fatorial, considerando a categoria de análise multivariada. Os teores de gordura do leite (0,92– 0,79) e de sólidos totais (0,91–0,80) foram altamente correlacionados com o fator 1. Intervalo entre partos (0,87–0,68) e número de IA (inseminações artificiais) por concepção (0,87–0,71) apresentaram alta correlação com o fator 2. Produção de leite (0,84–0,76) e produção acumulada de leite (0,84–0,77) foram altamente correlacionados com o fator 3. Baseados nos resultados, é possível concluir que as três situações de parto foram caracterizadas por fatores independentes e bem definidos. Vacas que necessitaram de alta assistência ao parto apresentaram menor variância explicada pelo modelo para teores de gordura e sólidos totais do leite, intervalo entre partos e número de IA por concepção.Palavras-chave: assistência ao parto; análise multivariada; manejo do parto; produção de leiteUniversidade Federal de Goiás2022-08-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistas.ufg.br/vet/article/view/72508Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 23 (2022): Continuous publicationCiência Animal Brasileira / Brazilian Animal Science; v. 23 (2022): Publicação contínua1809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporenghttps://revistas.ufg.br/vet/article/view/72508/38586https://revistas.ufg.br/vet/article/view/72508/38742https://revistas.ufg.br/vet/article/view/72508/38587https://revistas.ufg.br/vet/article/view/72508/38743Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Sciencehttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessLourenço, Jean CarlosOssani, Paulo Cesar Viera Salles, Márcia SaladiniIstvan Bánkuti , Ferenc de Almeida , Rodrigo Rossoni, Diogo Francisco Cardozo de Osorio, Jesús Alberto dos Santos, Geraldo Tadeu 2023-03-23T18:43:54Zoai:ojs.revistas.ufg.br:article/72508Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:56:30.836045Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Characterization of dystocia in a herd of Holstein dairy cows in Brazil
Caracterização da distocia em um rebanho de vacas da raça Holandesa no Brasil
title Characterization of dystocia in a herd of Holstein dairy cows in Brazil
spellingShingle Characterization of dystocia in a herd of Holstein dairy cows in Brazil
Lourenço, Jean Carlos
title_short Characterization of dystocia in a herd of Holstein dairy cows in Brazil
title_full Characterization of dystocia in a herd of Holstein dairy cows in Brazil
title_fullStr Characterization of dystocia in a herd of Holstein dairy cows in Brazil
title_full_unstemmed Characterization of dystocia in a herd of Holstein dairy cows in Brazil
title_sort Characterization of dystocia in a herd of Holstein dairy cows in Brazil
author Lourenço, Jean Carlos
author_facet Lourenço, Jean Carlos
Ossani, Paulo Cesar
Viera Salles, Márcia Saladini
Istvan Bánkuti , Ferenc
de Almeida , Rodrigo
Rossoni, Diogo Francisco
Cardozo de Osorio, Jesús Alberto
dos Santos, Geraldo Tadeu
author_role author
author2 Ossani, Paulo Cesar
Viera Salles, Márcia Saladini
Istvan Bánkuti , Ferenc
de Almeida , Rodrigo
Rossoni, Diogo Francisco
Cardozo de Osorio, Jesús Alberto
dos Santos, Geraldo Tadeu
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lourenço, Jean Carlos
Ossani, Paulo Cesar
Viera Salles, Márcia Saladini
Istvan Bánkuti , Ferenc
de Almeida , Rodrigo
Rossoni, Diogo Francisco
Cardozo de Osorio, Jesús Alberto
dos Santos, Geraldo Tadeu
description The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87–0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.Keywords: calving assistance; calving management; milk production; multivariate analysis
publishDate 2022
dc.date.none.fl_str_mv 2022-08-08
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://revistas.ufg.br/vet/article/view/72508
url https://revistas.ufg.br/vet/article/view/72508
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/vet/article/view/72508/38586
https://revistas.ufg.br/vet/article/view/72508/38742
https://revistas.ufg.br/vet/article/view/72508/38587
https://revistas.ufg.br/vet/article/view/72508/38743
dc.rights.driver.fl_str_mv Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Science
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Science
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Goiás
publisher.none.fl_str_mv Universidade Federal de Goiás
dc.source.none.fl_str_mv Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 23 (2022): Continuous publication
Ciência Animal Brasileira / Brazilian Animal Science; v. 23 (2022): Publicação contínua
1809-6891
1518-2797
reponame:Ciência animal brasileira (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Ciência animal brasileira (Online)
collection Ciência animal brasileira (Online)
repository.name.fl_str_mv Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv ||revistacab@gmail.com
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