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Acta agriculturae Slovenica, 86(December 2005)1, 3–15.

Agris category codes: C30, Q01
COBISS Code           1.01
Language: Slovene

DESIGN AND DEVELOPMENT OF A RELATIONAL DATABASE FOR FUNCTIONAL FOODS[1]

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a), Tomaž BARTOL and Bojana BOH

a) Univ. of Ljubljana, Biotechnical Fac., Agronomy Dept., Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia, M.Sc.

ABSTRACT

We present design and construction of a relational database for functional foods which are defined as foods used in everyday diet, and having beneficial effects on health as well as reducing risks for diseases. Database was designed according to Fienkelstein. It contains entities, attributes, and primary keys. Main entities are represented by: biologically active compounds, classification, properties, foods, physiological effects, diseases, processes, legislation, bibliography, and functional classification. Database was normalised and was constructed with MS Access 2000. It is based on dictionary of entities, attributes, relations, and entity-relationship diagram. It contains data for 35 biologically active foods. Classification tree was set up on the basis of descriptors from FSTA thesaurus following a bibliometric analysis. The data were extracted from 140 documents (articles, books etc.). The database is represented with six inter-linked forms (sheets): Classification, Biologically active compounds, Foods, Diseases, Legislation, Bibliography and Retrieval (Search). It is possible to search according to the following queries: (1) what are functional foods, (2) which active compounds are contained in foods, (3) classification of compounds, (4) which are the risk-reducing compounds, (5) physico-chemical properties of compounds, and (6) legislation in the field of functional foods. Application is available as CD-ROM and is accessible to end-users.

Key words: functional foods / relational databases / bibliographic databases / planning / design / data collection / data processing / classification / documentation / information science / bibliometrics / scientometrics / human nutrition / health foods / disease prevention / biologically active compounds
 

[1] The article presents a part of results from master thesis ‘Bibliometric analysis as support for relational database design for functional foods’, carried out by the autor at Natural Sciences and Engineering Faculty under supervision of prof. B. Boh, Ph.D. and cosupervision of T. Bartol, Ph.D.


Acta agriculturae Slovenica, 86(December 2005)1, 17–25.

Agris category codes: Q54
COBISS Code           1.01
Language: English

PREDICTION OF CHEMICAL COMPOSITION AND ENERGY VALUE OF HAY BY NEAR-INFRARED REFLECTANCE SPECTROSCOPY (NIRS)

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a), Jože VERBIČ and Drago BABNIK

a) Kmetijski inštitut Slovenije, Hacquetova 17, SI-1000 Ljubljana, Slovenija.

ABSTRACT

One hundred and fifty-eight hay samples with known chemical composition and in vitro determined concentration of net energy for lactation (NEL) were scanned over the wavelength range from 1100 to 2500 nm at 8 nm intervals. Calibration equations for the prediction of dry matter (DM), crude protein (CP), crude fibre (CF), crude fat, ash and NEL were developed by the use of principal component analysis. NIRS demonstrated high predictive ability for CP (R2 = 0.98), CF (R2 = 0.95) and ash (R2 = 0.94). Only moderate accuracy was characteristic for DM (0.87) and crude fat (R2 = 0.75). With exception of ash deviations from reference methods are comparable to those which are expected by the use of the same reference methods in different laboratories. NIRS has a high ability to predict in vitro assessed NEL concentration (R2 = 0.89). More than 95% of samples lied within acceptable limits of ± 0.3 MJ NEL kg–1 dry matter (DM). Despite suboptimal sample distribution, i.e. small number of samples in classes below 4.4 and above 5.6 MJ NEL kg–1 DM, the deviations of NIRS predicted values from reference values were not related to concentration of NEL. It was concluded that NIRS is rapid and reliable technique for determination of chemical composition and energy value of hay.

Key words: feed / hay/ net energy for lactation/ chemical composition/ NIRS


Acta agriculturae Slovenica, 86(December 2005)1, 27–38.

Agris category codes: P30
COBISS Code           1.01
Language: English

TOXIC AND GENOTOXIC POTENTIAL EVALUATION OF SOIL SAMPLES BY BIOASSAYS

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a), Miha AVBERŠEK, Gregor GORJANC and Romana MARINŠEK LOGAR

a) Univ. of Ljubljana, Biotechnical fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia.

ABSTRACT

Soil samples were obtained from Slovenian industrial region Šaleška dolina and aqueous leachates were prepared. The toxicity and genotoxicity potential of these aqueous fractions have been evaluated by in vitro toxicity and genotoxicity bioassays. Freshwater toxicity test (PROTOXKIT FTM) with a ciliate protozoan Tetrahymena thermophila, and genotoxicity comet assay using Tetrahymena thermophila, Caco-2 and HepG2 cell lines were performed. Biological data were completed through chemical analyses. It has been shown that physico-chemical analyses alone may not be sufficient to characterize soil hazards. To study soil ecotoxcity it is therefore necessary to take into consideration both, the physico-chemical analyses, toxicity and genotoxicity assays.

Key words: microbiology / toxicity / genotoxicity / soil samples / in vitro bioassays / Slovenia
Acta agriculturae Slovenica, 86(December 2005)1, 39–47.

Agris category codes: E10
COBISS Code           1.01
Language: English

INCOME SITUATION OF AGRICULTURAL HOUSEHOLDS IN SLOVENIA AFTER EU ACCESSION: IMPACTS OF DIFFERENT DIRECT PAYMENTS POLICY OPTIONS

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a), Stane KAVČIČ and Emil ERJAVEC

a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia.

ABSTRACT

Paper investigates income effects of different direct payments policy options after the accession of Slovenia to the EU by application of a static deterministic total income model for rural households in Slovenia (TIM). Model is based on actual income data of 120 agricultural households in Slovenia. With respect to the baseline situation before the accession and accession agreement, income situation of analyzed households is likely to improve under all analyzed policy scenarios. The estimated benefits are highest in case of the standard direct payments scheme, followed by basic flat-rate area payment option (entirely decoupled). Model results reveal also that 2003 policy reform will have redistributive impacts in favour of agricultural households engaged in extensive agricultural production.

Key words: agricultural households / EU enlargement / CAP reform / total income / income impacts / Slovenia
Acta agriculturae Slovenica, 86(December 2005)1, 49–61.

Agris category codes: E10, E51
COBISS Code           1.01
Language: English

EVALUATION OF PUBLIC EXPENDITURE ON ECONOMIC GROWTH OF THE PERIPHERAL SLOVENIA WITH INPUT-OUTPUT MODEL

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a), Luka JUVANČIČ, Urban SILA and Emil ERJAVEC

a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia, Ph.D., M.Sc.

ABSTRACT

Slovenia is witnessing a problem of divergence in economic performance of its regions despite the high importance of the balanced regional development on the policy agenda. After the EU accession the problem of regional disparities is addressed through a wide set of financial mechanisms that affect the regional development; i.e. certain elements of CAP, Structural and Cohesion funds and Community initiatives. The paper is evaluating impacts of public expenditure from these sources on the economic performance of the region Peripheral Slovenia by constructing a regional Input-Output model in the present (2004–06) and the following (2007–13) financial perspective. Results show that the analysed funds can stimulate a notable economic growth of the Peripheral Slovenia especially in the following financial perspective. However; comparisons of the output growth at the national level reveal likely lagging of the region. This means that the anticipated increase of regional development disparities in Slovenia would continue in the future.

Key words: economics / Slovenia / regional development / EU accession / regional input-output model

 

University of Ljubljana Biotechnical Faculty