Original scientific paper

The Effect of the Abattoir on Beef Carcass Classification Results

Maja Prevolnik ; University of Maribor, Faculty of Agriculture and Life Sciences, Pivola 10, 2311 Hoče, Slovenia
Manca Knap ; Agricultural Institute of Slovenia, Hacquetova ul. 17, 1000 Ljubljana, Slovenia
Andreja Žabjek ; Agricultural Institute of Slovenia, Hacquetova ul. 17, 1000 Ljubljana, Slovenia
Marjeta Čandek-Potokar orcid.org/0000-0003-0231-126X ; University of Maribor, Faculty of Agriculture and Life Sciences, Pivola 10, 2311 Hoče, Slovenia; Agricultural Institute of Slovenia, Hacquetova ul. 17, 1000 Ljubljana, Slovenia

Abstract

The aim of the present study was to test a possible way of monitoring cattle carcass classification using a statistical approach. For that purpose the analysis of covariance (ANCOVA by SAS) was used with the fixed effect of the abattoir, carcass weight (as a covariate) and their interaction. The analysis was based on the relationship between carcass weight and conformation or fatness grades. We tested if the regression lines of individual abattoirs differ from the average. The analysis comprised data for young bulls of Simmental breed slaughtered in Slovenia in the period from 2007 to 2010 (52,624 records). Results showed that in many abattoirs the assessment of conformation and fatness deviates significantly from the average, i.e. regression lines for several abattoirs differ significantly from the average (population) line. Differences were more important for the conformation than fatness. The statistical process control using the analysis of covariance can be used for additional monitoring of cattle carcass classification.

Keywords

cattle; carcass classification; uncertainty; abattoir effect; statistical control

Hrčak ID:

72028

URI

https://hrcak.srce.hr/72028

Publication date:

3.10.2011.

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