Comparison of methodologies for assessment of pork loin eye area
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.17523/bia.v71n3p211 http://hdl.handle.net/11449/137088 |
Resumo: | The determination of loin eye area (LEA) is one of the most common methods to assess carcass quality and it is possible to adjust calculations to predict meat amount in the carcass which is one of the important features in the classification process. The aim of this study was to compare different methodologies used to determine LEA in swine. Fifteen crossbred pigs, Landrace x Large White, males and females, were slaughtered at 140 days of age. After 24 hours of cooling at 4°C, the Longissimus dorsi muscle was removed from the left half part of carcasses for evaluation of LEA between the 12th and 13th rib. The methods were: point counting on plastic grid of 1 cm2 and 0.25 cm2 (PCGP 1 cm2 and PCGC 0.25 cm2 ), circumference method by Echo Image Viewer (ECHO), circumference method using AutoCad ® program (CAD) and method of weighing paper (WP). The design was completely randomized with 15 replications per treatment and the data were subjected to Pearson correlation and variance analysis. Averages were compared by Tukey test at a significance level of 5%. LEA values were: 35.84, 35.69, 33.86, 34.22 and 36.71 cm2 , for the PCGP 1 cm2 , PCGP 0.25 cm2 , ECHO, CAD and WP methods, respectively. The LEA values determined by methods PCGP 1 cm2 , PCGP 0.25 cm2 and WP were similar; however they were higher than those obtained by the ECHO and CAD methodologies (P<0.0001). PCGP 1 cm2 , PCGP 0.25 cm2 and WP methods may overestimate LEA values. The choice of method to be used should be based on its practicality and availability of resources, since the difference obtained between them is low. |
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Comparison of methodologies for assessment of pork loin eye areaComparação de metodologias para determinação da área de olho de lombo em suínosAutoCAD®Echo image viewerPaper weightPlastic gridPoint countingAutoCAD®Echo image viewerPeso do papelGabarito plásticoContagem de pontosThe determination of loin eye area (LEA) is one of the most common methods to assess carcass quality and it is possible to adjust calculations to predict meat amount in the carcass which is one of the important features in the classification process. The aim of this study was to compare different methodologies used to determine LEA in swine. Fifteen crossbred pigs, Landrace x Large White, males and females, were slaughtered at 140 days of age. After 24 hours of cooling at 4°C, the Longissimus dorsi muscle was removed from the left half part of carcasses for evaluation of LEA between the 12th and 13th rib. The methods were: point counting on plastic grid of 1 cm2 and 0.25 cm2 (PCGP 1 cm2 and PCGC 0.25 cm2 ), circumference method by Echo Image Viewer (ECHO), circumference method using AutoCad ® program (CAD) and method of weighing paper (WP). The design was completely randomized with 15 replications per treatment and the data were subjected to Pearson correlation and variance analysis. Averages were compared by Tukey test at a significance level of 5%. LEA values were: 35.84, 35.69, 33.86, 34.22 and 36.71 cm2 , for the PCGP 1 cm2 , PCGP 0.25 cm2 , ECHO, CAD and WP methods, respectively. The LEA values determined by methods PCGP 1 cm2 , PCGP 0.25 cm2 and WP were similar; however they were higher than those obtained by the ECHO and CAD methodologies (P<0.0001). PCGP 1 cm2 , PCGP 0.25 cm2 and WP methods may overestimate LEA values. The choice of method to be used should be based on its practicality and availability of resources, since the difference obtained between them is low.A determinação da área de olho de lombo (LEA) é o método mais comum para análises de qualidade de carcaça, sendo possível ajustar cálculos para predizer o grau de musculosidade na mesma, sendo um recurso importante nos processos de classificação. Objetivou-se com este trabalho comparar diferentes metodologias utilizadas na determinação da LEA em suínos. Quinze suínos mestiços Landrace x Large White, machos e fêmeas, foram abatidos aos 140 dias de idade. Após 24 horas de refrigeração a 4°C o músculo Longissimus dorsi foi retirado da meia carcaça esquerda para avaliação da LEA entre a 12ª e 13ª costela. Os métodos utilizados para avaliação foram: contagem de pontos em gabarito plástico de 1 cm² e de 0,25 cm2 (CPGP 1 cm2 e CPGC 0,25 cm2 ), método de circunferência por meio do programa Echo Image Viewer (ECHO), método de circunferência por meio do programa AutoCad® (CAD) e método de pesagem do papel (WP). O delineamento foi inteiramente casualizado, com 15 repetições por tratamento e os dados foram submetidos a teste de correlação e análise de variância. As médias foram comparadas pelo teste de Tukey, ao nível de 5% de significância. Os valores médios de LEA observados foram de 35,84, 35,69, 33,86, 34,22 e 36,71 cm2 , para os métodos CPGP 1 cm2 , CPGP 0,25 cm2 , ECHO, CAD e WP, respectivamente. Os valores de LEA determinados pelos métodos CPGP 1 cm2 , CPGP 0,25 cm2 e WP foram semelhantes entre si, entretanto superiores aos obtidos pelas metodologias ECHO e CAD (P<0,0001). Os métodos CPGP 1 cm2 , CPGP 0,25 cm2 e WP podem superestimar os valores de LEA. A escolha do método a ser utilizado deve ser feita com base em sua praticidade e disponibilidade de recursos, uma vez que a diferença entre eles é de pequena ordem.Universidade Federal da Grande Dourados (UFGD), Faculdade de Ciências Agrárias, Dourados, MS, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Departamento de Produção Animal, Botucatu, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Departamento de Produção Animal, Botucatu, SP, BrasilUniversidade Federal da Grande Dourados (UFGD)Universidade Estadual Paulista (Unesp)Santos, Luan Sousa dos [UNESP]Caldara, Fabiana RibeiroSantos, Rita de Kássia Silva dosNääs, Irenilza de AlencarFoppa, LucianaGarcia, Rodrigo GarófalloPaz, Ibiara Correia de Lima Almeida [UNESP]2016-04-01T18:44:07Z2016-04-01T18:44:07Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article211-216application/pdfhttp://dx.doi.org/10.17523/bia.v71n3p211Boletim de Indústria Animal, v. 71, n. 3, p. 211-216, 2014.1981-4100http://hdl.handle.net/11449/13708810.17523/bia.v71n3p211ISSN1981-4100-2014-71-03-211-216.pdfCurrículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBoletim de Indústria Animalinfo:eu-repo/semantics/openAccess2024-09-09T13:00:20Zoai:repositorio.unesp.br:11449/137088Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T13:00:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparison of methodologies for assessment of pork loin eye area Comparação de metodologias para determinação da área de olho de lombo em suínos |
title |
Comparison of methodologies for assessment of pork loin eye area |
spellingShingle |
Comparison of methodologies for assessment of pork loin eye area Santos, Luan Sousa dos [UNESP] AutoCAD® Echo image viewer Paper weight Plastic grid Point counting AutoCAD® Echo image viewer Peso do papel Gabarito plástico Contagem de pontos |
title_short |
Comparison of methodologies for assessment of pork loin eye area |
title_full |
Comparison of methodologies for assessment of pork loin eye area |
title_fullStr |
Comparison of methodologies for assessment of pork loin eye area |
title_full_unstemmed |
Comparison of methodologies for assessment of pork loin eye area |
title_sort |
Comparison of methodologies for assessment of pork loin eye area |
author |
Santos, Luan Sousa dos [UNESP] |
author_facet |
Santos, Luan Sousa dos [UNESP] Caldara, Fabiana Ribeiro Santos, Rita de Kássia Silva dos Nääs, Irenilza de Alencar Foppa, Luciana Garcia, Rodrigo Garófallo Paz, Ibiara Correia de Lima Almeida [UNESP] |
author_role |
author |
author2 |
Caldara, Fabiana Ribeiro Santos, Rita de Kássia Silva dos Nääs, Irenilza de Alencar Foppa, Luciana Garcia, Rodrigo Garófallo Paz, Ibiara Correia de Lima Almeida [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Grande Dourados (UFGD) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Santos, Luan Sousa dos [UNESP] Caldara, Fabiana Ribeiro Santos, Rita de Kássia Silva dos Nääs, Irenilza de Alencar Foppa, Luciana Garcia, Rodrigo Garófallo Paz, Ibiara Correia de Lima Almeida [UNESP] |
dc.subject.por.fl_str_mv |
AutoCAD® Echo image viewer Paper weight Plastic grid Point counting AutoCAD® Echo image viewer Peso do papel Gabarito plástico Contagem de pontos |
topic |
AutoCAD® Echo image viewer Paper weight Plastic grid Point counting AutoCAD® Echo image viewer Peso do papel Gabarito plástico Contagem de pontos |
description |
The determination of loin eye area (LEA) is one of the most common methods to assess carcass quality and it is possible to adjust calculations to predict meat amount in the carcass which is one of the important features in the classification process. The aim of this study was to compare different methodologies used to determine LEA in swine. Fifteen crossbred pigs, Landrace x Large White, males and females, were slaughtered at 140 days of age. After 24 hours of cooling at 4°C, the Longissimus dorsi muscle was removed from the left half part of carcasses for evaluation of LEA between the 12th and 13th rib. The methods were: point counting on plastic grid of 1 cm2 and 0.25 cm2 (PCGP 1 cm2 and PCGC 0.25 cm2 ), circumference method by Echo Image Viewer (ECHO), circumference method using AutoCad ® program (CAD) and method of weighing paper (WP). The design was completely randomized with 15 replications per treatment and the data were subjected to Pearson correlation and variance analysis. Averages were compared by Tukey test at a significance level of 5%. LEA values were: 35.84, 35.69, 33.86, 34.22 and 36.71 cm2 , for the PCGP 1 cm2 , PCGP 0.25 cm2 , ECHO, CAD and WP methods, respectively. The LEA values determined by methods PCGP 1 cm2 , PCGP 0.25 cm2 and WP were similar; however they were higher than those obtained by the ECHO and CAD methodologies (P<0.0001). PCGP 1 cm2 , PCGP 0.25 cm2 and WP methods may overestimate LEA values. The choice of method to be used should be based on its practicality and availability of resources, since the difference obtained between them is low. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2016-04-01T18:44:07Z 2016-04-01T18:44:07Z |
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/10.17523/bia.v71n3p211 Boletim de Indústria Animal, v. 71, n. 3, p. 211-216, 2014. 1981-4100 http://hdl.handle.net/11449/137088 10.17523/bia.v71n3p211 ISSN1981-4100-2014-71-03-211-216.pdf |
url |
http://dx.doi.org/10.17523/bia.v71n3p211 http://hdl.handle.net/11449/137088 |
identifier_str_mv |
Boletim de Indústria Animal, v. 71, n. 3, p. 211-216, 2014. 1981-4100 10.17523/bia.v71n3p211 ISSN1981-4100-2014-71-03-211-216.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Boletim de Indústria Animal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
211-216 application/pdf |
dc.source.none.fl_str_mv |
Currículo Lattes 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 |
repositoriounesp@unesp.br |
_version_ |
1813546550815621120 |