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Spremembe sestave krmnih obrokov za goveje pitance : primer uporabe normativnih in pozitivnih matematičnih metod = Changes of beef ration composition : an example of utilizing normative and positive mathematical methodsŽgajnar, Jaka, 1982- ; Kavčič, Stane, 1966-Namen prispevka je prikazati možnost kombiniranja različnih matematičnih metod za analiziranje sestave krmnih obrokov v danih okoliščinah. Z matematičnimi modeli, ki temeljijo na omejeni ... optimizaciji, smo proučevali cenovno-stroškovna razmerja v obdobju 1998 do 2008 in iskali morebitne spremembe v sestavi racionalnih krmnih obrokov za goveje pitance. Za analizo smo uporabili normativne in pozitivne matematične metode. S pomočjo klasičnega linearnega programa, nadgrajenega s tehtanim ciljnim programom, smo izvedli normativno analizo. Da bi ugotovili, kako bi se v danih razmerah odločal povprečen rejec, pa smo simulacijo izvedli tudi s pozitivnim matematičnim programiranjem. Dobljeni rezultati kažejo, da se je sestava racionalnega krmnega obroka v zadnjih desetih letih nagnila v prid koruzne silaže, izrazito pa se je zmanjšala količina travne silaže v obroku. Zaradi naravnih danosti v Sloveniji take spremembe niso izvedljive, zato bomo morali več pozornosti posvetiti zniževanju stroškov pridelave travne silaže.Source: Acta agriculturae Slovenica. - ISSN 1581-9175 (Letn. 92, št. 1, nov. 2008, str. 29-40)Type of material - article, component partPublish date - 2008Language - slovenianCOBISS.SI-ID - 2408328
Author
Žgajnar, Jaka, 1982- |
Kavčič, Stane, 1966-
Topics
govedo |
biki |
pitanci |
prehrana živali
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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 |
Kavčič, Stane, 1966- | 13487 |
Source: Personal bibliographies
and: SICRIS
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