Comparison of methodologies for assessment of pork loin eye area

Autores/as

  • Luan Sousa dos Santos Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Fabiana Ribeiro Caldara Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, Dourados, MS
  • Rita de Kássia Silva dos Santos Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, Dourados, MS
  • Irenilza de Alencar Nääs Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Luciana Foppa Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, Dourados, MS
  • Rodrigo Garófallo Garcia Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, Dourados, MS
  • Ibiara Correia de Lima Almeida Paz Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP

DOI:

https://doi.org/10.17523/bia.v71n3p211

Palabras clave:

AutoCAD®, Echo Image Viewer, paper weight, plastic grid, point counting

Resumen

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.

Descargas

Los datos de descarga aún no están disponibles.

Descargas

Publicado

2014-03-01

Número

Sección

MÉTODOS QUANTITATIVOS E ECONOMIA

Cómo citar

Comparison of methodologies for assessment of pork loin eye area. (2014). Boletín De Industria Animal, 71(3), 211-216. https://doi.org/10.17523/bia.v71n3p211

Artículos más leídos del mismo autor/a