Determinación de la función de beneficio en explotaciones ovinas de carne de extremadura mediante regresión por mínimos cuadrados parciales (PLSR)

P. Gapar ^[1] ; A.F. Pulido ^[1] ; A. Rodriguez Ledesma ^[1] ; F.J. Mesías ^[1] ; M. Escribano ^[1]
1. [1] Universidad de Extremadura
  
  Universidad de Extremadura
  
  Badajoz, España
Localización: XVI Jornadas sobre Producción Animal: 19 y 20 de mayo de 2015, Zaragoza / Javier Álvarez Rodríguez (aut.), Begoña Panea Doblado (aut.), Jorge Hugo Calvo Lacosta (aut.), Mireia Blanco Alibés (aut.), José Alfonso Abecia Martínez (aut.), Daniel Villalba Mata (aut.), María Ángeles Latorre Górriz (aut.), Vol. 1, 2015, ISBN 978-84-606-7969-1, págs. 60-62
Idioma: español
Títulos paralelos:
- Partial least squares regression (PLSR) as a method for the determination of the profit function in sheep-for-meat farms in extremadura
Enlaces
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Resumen
- This paper presents a profit function developed for sheep-for-meat farms in the cooperative environment of Extremadura region (Spain). For that purpose, data from 115 farms belonging to three sheep cooperatives have been analyzed. The method used to determine the profit function (expressed in Gross margin per ewe)was the partial least squares regression (PLSR). The obtained equation showed a R2 of 0.82 in the validation stage and the variables that best explained the behavior of the profit variable were: income from subsidies, lambs sold per ewe, leasing costs, cost of concentrate, Kg concentrate used for fattening and cultivated area of the holding.