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Milk production represents the possibility of earning monthly income and assures social security to many farms in Slovenia. In Slovenia the European rules and regulations on the quality of the delivered milk have been introduced, relating to the hygienic quality of milk and the count of somatic cells. The purchase price of the milk depends also on the protein and fat content. The aim of the research was to establish, whether the quality of the delivered milk complies with the prescriptions regulated by the Slovene legislation. The quality of the delivered milk in the area of the Šentjur agricultural cooperative (ACŠ) and in the entire area of Slovenia (SLO) has been studied. The bacteriological data in the individual quality classes, the data on the total count of somatic cels and the data on the fat and protein contents have been analyzed. 36 monthly accounts have been included in statistical processing. It has been established that the delivered milk of the areas in question does not differ in the relevant quality values. Proizvodnja mlijeka predstavlja mogućnost stjecanja mjesečnog dohotka i time osigurava socijalnu sigurnost mnogim seoskim gospodarstvima. U Sloveniji su na snazi europski propisi o kakvoći otkupljenog mlijeka i odnose se na higijensku kakvoću mlijeka te broj somatskih stanica. Otkupna cijena mlijeka ovisi i o postotku proteina i masnoće. Cilj rada bio je ustanoviti odgovara li kakvoća otkupljenog mlijeka aktualnim propisima u Sloveniji (SLO). Istraživana je kvaliteta otkupljenog mlijeka na području Kmetijske zadruge Šentjur (KZŠ) i cjelokupnom području Slovenije (SLO). Analizirani su bakteriološki podaci u pojedinim razredima kakvoće, podaci o ukupnom broju somatskih stanica te podaci o udjelu masti i proteina. U statističku obradu podataka uključeno je 36 mjesečnih obračuna. Utvrđeno je, da se otkupljeno mlijeko istraživanih područja ne razlikuje u bitnim elementima kakvoće.

Namen diplomskega dela je bil primerjati različna odkupna območja mleka po kvalitativnih lastnostih. Tako smo med seboj primerjali mleko odkupljeno na območju Kmetijske zadruge Šentjur, odkupnem območju Mlekarne Celeia in odkupljeno mleko celotnega območja Slovenije. Prireja mleka je v veliki meri odvisna tudi od prehrane krav, zato nas je zanimalo, kako imajo boljše družinske kmetije na območju Kmetijske zadruge Šentjur izravnane krmne obroke za krave molznice. Zbrali smo 36 mesečnih obračunov. Proučevali smo odkupljene količine mleka, vsebnost mikroorganizmov, skupno število somatskih celic ter vsebnost maščob in beljakovin za obdobje 2006 - 2008. Na obravnavanih kmetijah smo ugotovili dejansko sestavo krmnih obrokov. Krmne obroke smo ovrednotili na podlagi tabelarnih vrednosti. Živalim je bil skozi vso leto na voljo zimski krmni obrok na osnovi koruzne in travne silaže, sena ter dodatka koncentrirane krme. Molznice so bile ustrezno oskrbljene z energijo medtem, ko je bil pri beljakovinah ugotovljen primanjkljaj (6 % prebavljivih surovih beljakovin). Odkupljeno mleko iz obravnavanih območij se ni razlikovalo po bistvenih mikrobioloških kakovostnih postavkah. The purpose of the thesis was to compare different areas of milk collection considering qualitative characteristics. Milk collected within the agricultural cooperative Šentjur, the diary Mlekarna Celeia and milk collected in whole Slovenia was compared. Milk production depends on cow nutrition in majority therefore the main interest was to investigate how well situated family farms feed diary cows in the area of agricultural cooperative Šentjur. Thirty-six monthly settlements were collected. The amount of collected milk, the content of microorganisms, the number of somatic cells, fat and protein content were examined for the period 2006 to 2008. On farms involved in the research, the typical feed content was determined. Feed was assessed on the basis of tabular data. Animals got winter-feed based on maize and grass silage, hay and the additive of concentrated feed during the whole year. Diary cows were suitable supplied with energy, however, there was a lack of protein established (6 % of digestible raw proteins). Considering the main microbiological quality items, milk collected from the areas in question was not different.