Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex

Detalhes bibliográficos
Autor(a) principal: Ferraz,Filipe Martins
Data de Publicação: 2020
Outros Autores: Vieira e Silva,Fredson, Oliveira,Laura Lúcia dos Santos, Borges,Iran, Alves,Dorismar David, Rocha Júnior,Vicente Ribeiro
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100823
Resumo: ABSTRACT The objective was to group and characterize Zebu cattle carcasses according to sex. Data from 15,002 carcasses of cattle raised in the semiarid region of the state of Minas Gerais, Brazil, were used. The carcass characteristics analyzed were weight, conformation, subcutaneous fat, number of permanent incisor teeth (PIT), and sex (uncastrated males, castrated males, females (up to six PIT), and cows (eight PIT)). Cluster analysis was applied to establish the relationship between sex and carcass characteristics. Four clusters were identified according to sex, and 60% of the total variance in the data set is explained by the clusters. Uncastrated males appear together in a single group (Cluster 1), which demonstrates homogeneity in their carcass characteristics. The heaviest group was Cluster 1. The castrated males appear in three groups, some of them (33.58%) grouped with the majority of cows (92.85%), which indicates that these carcasses did not achieve the quality required by the industry. Another part of the castrated males (41.84%) presented characteristics required by the industry. The females appear in all clusters. Except for uncastrated males and cows, the effect of sex (castrated males and females) on the carcass characteristics of Zebu cattle from the semiarid region of the Minas Gerais does not assure similar characteristics. Therefore, the improvement of carcass quality, using castration as the central grading criterion, should be reviewed not to overemphasize this item.
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spelling Characterization of carcasses of Zebu cattle raised in a semiarid region according to sexbeef cattleCaatingaNelloreuncastrated maleABSTRACT The objective was to group and characterize Zebu cattle carcasses according to sex. Data from 15,002 carcasses of cattle raised in the semiarid region of the state of Minas Gerais, Brazil, were used. The carcass characteristics analyzed were weight, conformation, subcutaneous fat, number of permanent incisor teeth (PIT), and sex (uncastrated males, castrated males, females (up to six PIT), and cows (eight PIT)). Cluster analysis was applied to establish the relationship between sex and carcass characteristics. Four clusters were identified according to sex, and 60% of the total variance in the data set is explained by the clusters. Uncastrated males appear together in a single group (Cluster 1), which demonstrates homogeneity in their carcass characteristics. The heaviest group was Cluster 1. The castrated males appear in three groups, some of them (33.58%) grouped with the majority of cows (92.85%), which indicates that these carcasses did not achieve the quality required by the industry. Another part of the castrated males (41.84%) presented characteristics required by the industry. The females appear in all clusters. Except for uncastrated males and cows, the effect of sex (castrated males and females) on the carcass characteristics of Zebu cattle from the semiarid region of the Minas Gerais does not assure similar characteristics. Therefore, the improvement of carcass quality, using castration as the central grading criterion, should be reviewed not to overemphasize this item.Sociedade Brasileira de Zootecnia2020-01-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100823Revista Brasileira de Zootecnia v.49 2020reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.37496/rbz4920200044info:eu-repo/semantics/openAccessFerraz,Filipe MartinsVieira e Silva,FredsonOliveira,Laura Lúcia dos SantosBorges,IranAlves,Dorismar DavidRocha Júnior,Vicente Ribeiroeng2020-11-17T00:00:00Zoai:scielo:S1516-35982020000100823Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2020-11-17T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
title Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
spellingShingle Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
Ferraz,Filipe Martins
beef cattle
Caatinga
Nellore
uncastrated male
title_short Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
title_full Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
title_fullStr Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
title_full_unstemmed Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
title_sort Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex
author Ferraz,Filipe Martins
author_facet Ferraz,Filipe Martins
Vieira e Silva,Fredson
Oliveira,Laura Lúcia dos Santos
Borges,Iran
Alves,Dorismar David
Rocha Júnior,Vicente Ribeiro
author_role author
author2 Vieira e Silva,Fredson
Oliveira,Laura Lúcia dos Santos
Borges,Iran
Alves,Dorismar David
Rocha Júnior,Vicente Ribeiro
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ferraz,Filipe Martins
Vieira e Silva,Fredson
Oliveira,Laura Lúcia dos Santos
Borges,Iran
Alves,Dorismar David
Rocha Júnior,Vicente Ribeiro
dc.subject.por.fl_str_mv beef cattle
Caatinga
Nellore
uncastrated male
topic beef cattle
Caatinga
Nellore
uncastrated male
description ABSTRACT The objective was to group and characterize Zebu cattle carcasses according to sex. Data from 15,002 carcasses of cattle raised in the semiarid region of the state of Minas Gerais, Brazil, were used. The carcass characteristics analyzed were weight, conformation, subcutaneous fat, number of permanent incisor teeth (PIT), and sex (uncastrated males, castrated males, females (up to six PIT), and cows (eight PIT)). Cluster analysis was applied to establish the relationship between sex and carcass characteristics. Four clusters were identified according to sex, and 60% of the total variance in the data set is explained by the clusters. Uncastrated males appear together in a single group (Cluster 1), which demonstrates homogeneity in their carcass characteristics. The heaviest group was Cluster 1. The castrated males appear in three groups, some of them (33.58%) grouped with the majority of cows (92.85%), which indicates that these carcasses did not achieve the quality required by the industry. Another part of the castrated males (41.84%) presented characteristics required by the industry. The females appear in all clusters. Except for uncastrated males and cows, the effect of sex (castrated males and females) on the carcass characteristics of Zebu cattle from the semiarid region of the Minas Gerais does not assure similar characteristics. Therefore, the improvement of carcass quality, using castration as the central grading criterion, should be reviewed not to overemphasize this item.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.49 2020
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