Support Vector Regression to predict carcass weight in beef cattle in advance of the slaughter

Authors:
Jaime Alonso;ÁNgel RodríGuez CastañóN;Antonio Bahamonde
Affiliations:
Artificial Intelligence Center, University of Oviedo at Gijón, Asturias, Spain;Association of Breeders of Asturiana de los Valles (ASEAVA), Abarrio, No. 24, E-33424 Llanera, Asturias, Spain;Artificial Intelligence Center, University of Oviedo at Gijón, Asturias, Spain
Venue:
Computers and Electronics in Agriculture
Year:
2013

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Abstract

In this paper we present a function to predict the carcass weight for beef cattle. The function uses a few zoometric measurements of the animals taken days before the slaughter. For this purpose we have used Artificial Intelligence tools based on Support Vector Machines for Regression (SVR). We report a case study done with a set of 390 measurements of 144 animals taken from 2 to 222days in advance of the slaughter. We used animals of the breed Asturiana de los Valles, a specialized beef breed from the North of Spain. The results obtained show that it is possible to predict carcass weights 150days before the slaughter day with an average absolute error of 4.27% of the true value. The prediction function is a polynomial of degree 3 that uses five lengths and the estimation of the round profile of the animals.