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Multi-step beef ration optimisation : application of linear and weighted goal programming with a penalty functionŽgajnar, Jaka, 1982- ; Erjavec, Emil ; Kavčič, Stane, 1966-The aim of this paper is to present the method and tool for optimisation of beef-fattening diets. Changes in policy environment and changes in costs of feed pose challenges for farm efficiency. We ... construct a spreadsheet from two modules based on mathematical deterministic programming techniques. In order to obtain an estimate of the magnitude of costs that may be incurred, the first module utilizes a linear program for least-cost ration formulation. The resulting value is then targeted as a cost goal in the second module.This is supported by weighted goal programming with a penalty function system. The approach presented here is an example of how a combination of mathematical programming techniques might be applied to prepare a used-friendly tool for 'optimal' ration formulations. We report results that confirm this approach asuseful, since one is able to formulate a least-cost ration without risking adecrease in the ration's nutritive value or affecting the balance between nutrients.Source: Agricultural and food science. - ISSN 1459-6067 (Vol. 19, no. 3, 2010, str. 193-206)Type of material - article, component partPublish date - 2010Language - englishCOBISS.SI-ID - 2708616
Author
Žgajnar, Jaka, 1982- |
Erjavec, Emil |
Kavčič, Stane, 1966-
Topics
govedo |
pitanci |
prehrana živali |
krmni obroki |
optimizacija |
modeli
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Žgajnar, Jaka, 1982- | 29649 |
Erjavec, Emil | 10890 |
Kavčič, Stane, 1966- | 13487 |
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