Home Contents up to 2015 Editors Instructions to authors Subscription Letters

Research Rept. Biotechnical Fac. University of Ljubljana
Agricultural Issue.
Supplement
30


THE QUALITY OF OUR MEAT PRODUCTS AND COMPARISON WITH EU

B. ŽLENDERa)
a) Univ. of Ljubljana, Biotechnical Fac., Food Technology Dept., Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia

Review article
Language: English

ABSTRACT
Nowadays market success is ensured only by the appropriate high and constant quality of meat products and their suitable assortment that satisfy the growing demands of consumers. The quality of meat products in our market is constantly supervised by inspection services, but the best insight into their sensory quality is obtained by annual estimation of meat and meat products in domestic competition and dry meat products at the international estimation at the Fair of Agriculture and Food in Gornja Radgona. The paper presents the quality status in domestic competition, where four categories of the products are estimated: standard products, new products, safe products and fresh meat. The paper deals also with quality characteristics and the most frequent defects in dry meat products, i.e. dry meat and sausages, for which a comparison of the quality of the products with those offered in some European countries is possible. The technology characteristics and qualities of dry cured hams and sausages are especially emphasized and the reasons for specific quality characteristic of these products in different countries and provinces are described as well.

Key words: meat products, quality, Slovenia, EU


QUALITY OF POULTRY PRODUCTS IN ASPECTS OF EU LEGISLATION

Antonija HOLCMANa), D. TERČIČ and R. VADNJAL
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Review article
Language: English

ABSTRACT
European Union adopted its sanitation and hygienic legislation as well as common marketing standards for eggs in 1968 followed by poultry meat standards in 1976. The mentioned standards applied to basic requirements about quality, labelling and relevant monitoring methods. Standards are being frequently revised regarding the production structure, marketing and technological development as well as consumers’ changing attitudes towards food quality. In Slovenia the Regulations of Quality of Eggs and Egg Products (1989) apply to the quality requirements of eggs and egg products. The minimum requirements that are applied to poultry meat and edible giblets are adopted in Regulations of Meat Quality (1981) and Regulations of Changes and Additions to the Regulations of Poultry Meat Quality (1988). The comparison of the mentioned regulations with the EU legislation has shown that some changes and supplements to the existing regulations shall be necessary to comply them with the European legislation.

Key words: poultry, eggs, meat, quality, legislation, EU, Slovenia


HARMONIZATION OF THE QUALITY OF POULTRY MEAT WITH EU LEGISLATION

C. VARGAa) and Vera ŠMIGOC
a) Perutnina Ptuj d.d., Potrčeva cesta 10, SI-2250 Ptuj, Slovenia

Review article
Language: English

ABSTRACT
The comparison between the Slovenian and European Union regulations which provide for the quality of poultrymeat shows that differences in regulations regarding the quality of poultrymeat, cuts and giblets exist between Slovenia and EU. EU regulations provide for a wider offer of poultrymeat. Quality parameters of poultry carcasses (A, extra A, B and C classes) are more precisely defined in Slovenia which provides for a better quality of meat on the market. Weighing system and variation tolerance in net weight of frozen meat and main parts provide for a cheaper and easier work of slaughterhouses. Poultry meat producers in Slovenia shall have no major problems at adapting to EU quality requirements.

Key words: poultry, meat, quality, legislation, EU, Slovenia


CRITERIA FOR HYGIENIC IRREVOCABILITY OF FOOD OF ANIMAL ORIGIN

J. MARINŠEKa)
a)
Univ. of Ljubljana, Veterinary Fac., Gerbičeva ul. 60, SI-1000 Ljubljana, Slovenia

Review article
Language: English

ABSTRACT
In the article, the criteria determining the hygienic irrevocability of the food of animal origin are described. Shown are differences as well as correlation in the tolerances for contents of the particular environmental pollutants and veterinary-medicinal preparations in the food of animal origin, that are prescribed in Slovenia compared to that prescribed in some countries of European Union. Finally, a short representation of systematic control of bioresidua contents in the food of animal origin in Slovenia is given with the estimation of current situation on this field.

Keywords: food, food of animal origin, hygiene, criteria, Slovenia, EU


EVALUATION OF DIETARY VALUE OF HORSE MEAT

S. MAKRAYa), C. HANCZ, T. G. MARTIN and J. STEFLER
a) Pannon Agricultural Univ., Fac. of Animal Science, Guba S. u. 40, H-7400 Kaposvár, Hungary

Original scientific paper
Language: English

ABSTRACT
The results of this report were derived from a long-term experiment that has been going on since 1988 in the draft horse population at Kaposvár. Seventeen weaning foals representing four genotypes were slaughtered, at the age of 205.2 ± 14.4 days. Final weight was 300.0 ± 45.1 kg, carcass weight was 157.8 ± 27.6 kg, and dressing percentage was 52.9 ± 4.3 %. The results were slightly modified by the small-frame Haflingers, while the other foals were large-frame crossbreds from Hungarian Draft or French dams mated to Percheron or Noriker stallions. The main components: moisture (75.8 ± 1.0 %), protein (20.7 ± 0.9 %), fat (2.3 ± 0.8 %), and ash (0.9 ± 0.3 %) did not differ significantly among breeds. Besides the low total fat content, the low proportion of saturated fatty acids is also a favourable trait of horse meat.

Key words: draft horse, breeds, meat, quality


EVALUATION OF LIVER AS A SOURCE OF VITAMIN A

Vesna JEŠEa) and Renata CIGLARIČ
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Original scientific paper
Language: English

ABSTRACT
The aim of the investigation was to get an orientation on the concentrations of vitamin A in livers of different animal specieses in Slovenia. Liver samples from calves (5), cattle (5), chickens (7) and pigs (6) were analyzed. For determination of vitamin A, HPLC method was used after saponification and extraction of samples. It was possible to separate all-trans-retinol from other isomers. UV-detector at 328 nm was used for detection. Average concentrations of all-trans-retinol in liver (mg/100 g) were as follows: calf 5.6, cattle 25.9, chicken 14.0 and pig 15.0. Mean values of vitamin A in 100 g servings of animal livers were 4-fold to 25-fold of the RDA that depend on sort of liver, age, and sex of human. From nutritional point of view liver is a very rich source of vitamin A. Pregnant women should avoid liver with high vitamin A content, because of teratogenicity of high doses of vitamin A. Even few high doses of vitamin A can cause malformation of the fetus, especially in the first trimester of pregnancy. In other consumers some risk exist only at high and very frequently intake of liver.

Key words: domestic animals, animal nutrition, liver, vitamin A, all-trans-retinol


SIGNIFICANCE OF THE PRODUCTION AND THE MANUFACTURE OF SHEEP MEAT FOR THE DEVELOPMENT OF THE MEAT INDUSTRY OF BOSNIA AND HERZEGOVINA

F. ČAKLOVICAa), S. ADILOVIĆ, M. SMAJLOVIĆ, E. ADILOVIĆ and V. ŠAKIĆ
a) Univ. of Sarajevo, Veterinary Fac., Zmaja od Bosne 90, BiH-71000 Sarajevo, Bosnia and Herzegovina

Professional paper
Language: English

ABSTRACT
In this paper the number of sheep before the aggression and the significance of sheep breeding in Bosnia and Herzegovina was determined, after which the production, chemical contents and organoleptic characteristics are given, and then an assessment of the quality and manufacture of sheep meat. In the final conclusions the authors emphasize the comparative advantages of breeding sheep, especially in our mountainous regions, with the compulsory usage of contemporary breeding-selective measures and construction or reorientation of some already existing slaughterhouses, cooler houses and production facilities for the production and manufacture of sheep meat, as a real basis exists for such production. Industrial manufacturing should be directed towards the production of classical and new smoked meat products, and the production of sausages and meat cans. In regards to that, tested procedures of production should be used, with the compulsory usage of classical procedures and natural factors, in order to maintain the traditional high quality and contents of products.

Key words: sheep meat, meat products, Bosnia and Herzegovina


CONCEPTION OF QUALITY CONTROL IN THE HUNGARIAN FISHERY

C. HANCZa), S. KÖRMENDI, J. PEKLI and M. PERÉNYI
a) Pannon Agricultural Univ., Fac. of Animal Science, Guba S. u. 40, H-7400 Kaposvár, Hungary

Professional paper
Language: English

ABSTRACT
The process of having Hungary join the EU raises many difficult tasks in all branches of agriculture, including fish production. One of the main tasks is to develop techniques in quality control. In the near future companies who want to export their products to EU will have to undergo the auditing process of Total Quality Management (TQM). This means analysis of the whole production system from the used materials, animals and feeds relative to current and accepted quality standards. The methods of the analysis of hazards and critical points (HACCP) are used to check the most important abiotic and biotic markers of quality. Special aspects of aquaculture and fishery are discussed relative to environmental management’s quality control. A model is developed for a fish hatchery.

Key words: fishery, quality, control, TQM, HACCP, Hungary


ADAPTING THE MILK AND MILK PRODUCTS' QUALITY CONTROL TO THE DIRECTIVES OF THE EUROPEAN UNION

Slavica GOLC–TEGERa)
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., G
roblje 3, SI-1230 Domžale, Slovenia

Review paper
Language: English

ABSTRACT
The article describes the quality parameters of milk and milk products. The quality of Slovene milk seen from the point of view of considering the European quality criteria stated in the EEC 92/46 directive is mentioned. Trends in the contemporary dairy analytics for raw milk quality evaluation are stressed. The system for the analitical quality assurance is described.

Key words: milk, milk products, quality, contol, EU, Slovenia


MILK COMPOSITION IN RECORDED COWS AND THE QUALITY OF PURCHASED MILK IN THE LAST TEN YEARS IN SLOVENIA

Marija KLOPČIČa), J. POGAČAR and Ivana VALJAVEC
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Professional paper
Language: English

ABSTRACT
The results of milk recording in Slovenia were studied for the period of ten years. It has been found out that milk production of cows in standard lactation has been augmenting in all breeds. There were no significant differences in fat content among breeds, nevertheless, they emerged every year. The content of proteins varied more. The highest content of proteins was achieved by Simmental cows, while in Black-and-White cows the found content was lower. Average milk production differed between herds on state farms and the herds on family farms, and among family farms from various regions. Similar trends were found in purchased milk. The amount of purchased milk increased every year even though the number of family farms that produced market milk diminished. The content of fat and proteins in purchased milk increased and oscillated during the year. The microbiological quality of milk was significantly improved in the last ten years; and in 1997 about 82.2 % of purchased milk was classified into the extra and in the first quality class (up to 100,000 TNMO/ml). Somatic cells decrease in the purchased milk with 80 % of milk containing less than 400,000 in ml of milk. The quality of purchased milk in Slovenia has been significantly improved and can be compared with the quality of milk in other West European countries.

Key words: cattle, milk, milk content, quality, Slovenia


MILK QUALITY ON MERCATOR KMETIJSKO GOSPODARSTVO KOČEVJE FARMS REGARDING EU STANDARDS

Marija RAJČEVIČa), J. ŽLINDRA, A. VIDIC and K. POTOČNIK
a) Bratov Učakar 6, SI-1117 Ljubljana, Slovenia

Professional paper
Language: English

ABSTRACT
There were analyzed chemical composition and hygienic quality of milk produced in 1996 and 1997 on Mercator Kmetijsko gospodarstvo Kočevje farms. The results for quantity of dry matter without fat, protein, total count of microorganisms (TCMO) and somatic cells count (SCC) were analysed with regard to regulations in Slovenia and compared with requirements in EU (92/46 EEC). As regards mean quantity of dry matter without fat, protein, TCMO and SCC the delivered milk met the EU requirements in both years. There were, however, 25.42 % of milk with less than 85 g of dry matter without fat per kilogram in 1996 and 15.90 % in 1997. There was no milk with less than 28 g of protein per kg. 1.7 % of milk per year did not meet EU requirements since it contained more than 10 x 104/ml TCMO, but according to our regulations (OG RS, 34/98) it can still be redeemed. In 1996, 7.3 % of delivered milk did not meet EU requirements with regard to SCC, and 21.14 % in 1997; in this milk SCC was higher than 40 x 104/ml.

Key words: milk, chemical composition, hygiene, legislation, Slovenia, EU


PRODUCTION AND COMPOSITION OF SHEEP AND GOAT MILK IN SLOVENIA

D. KOMPANa), Suzana BREŽNIK, D. BIRTIČ and Marjana DROBNIČ
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Review article
Language: English

ABSTRACT

Milk production of small ruminants has been increasing in Slovenia as well as in the world. Composition and quality of milk are very important, being it a raw material for production of the best quality products. Factors that most frequently affect the composition and quality of sheep and goat milk are presented. The contents of fat, proteins, lactose in milk produced by Slovene sheep and goats as well as somatic cell count in samples of sheep milk are outlined.

Key words: small ruminants, milk production, milk, composition, somatic cell count, Slovenia


THE COMPETITIVE CAPACITY OF HUNGARIAN MILK PRODUCTION IN THE EXPANDED EUROPEAN UNION

I. HEINRICH a), C. BORBÉLY, G. SZÉLES and A. OLSOVSZKY
a) Institute of Farm Economics, German Federal Research Centre (FAL), Bundesallee 50, D-38116 Braunschweig, Germany

Professional paper
Language: English

ABSTRACT
Costs prevailing in Hungarian milk production fall between the levels of New Zealand and of western Europe. The example of the dairy farms studied illustrates that the conditions for profitable milk production do exist in this country. The advantages for Hungary lie in lower wage costs, relatively low animal feed costs, and a cattle stock with the capacity for high production. Should appropriate circumspection and professional expertise be combined with these advantageous factors, Hungarian milk producers will be capable of holding their own in the global competitive arena.

Key words: milk production, Hungary, EU


ESTIMATION OF IMMUNOGLOBULIN-G CONTENT OF COLOSTRUM AND MILK FROM WHEY PROTEIN CONTENT IN RUMINANT ANIMALS

Zsuzsanna KISS-CSAPÓa), I. HOLLÓ, Éva VISI-VARGA, Éva BALLA-TERLAKY and A. KOVÁCS
a) Pannon Agricultural Univ., Fac. of Animal Science, Guba S. u. 40, H-7400 Kaposvár, Hungary

Original scientific paper
Language: English

ABSTRACT
After analysis of the relation between the serum protein and immunglobulin-G content of the colostrum and milk of 141 cattle of various genotypes (pure-bred or cross-bred), 55 goats of various breeds and 171 sheep of various breeds it was established that there exists a very close correlation between these two components in all three species. R values of 0.9869 for cattle, 0.9723 for goats and 0.9574 for sheep were determined. The R value calculated for the three species evaluated collectively was 0.9667. The very close relation ascertained, by means of linear regression, between serum protein and immunoglobulin-G provides justification for the application of the equations formulated in this study for the estimation of immunoglobulin-G content on the basis of serum protein content.

Key words: ruminants, milk, colostrum, proteins, immunoglobulins


A NEW METHOD FOR THE QUANTITATIVE DETERMINATION OF PROTEIN OF BACTERIAL ORIGIN ON THE BASIS OF D-AMINO ACID CONTENT

J. CSAPÓa), J. SCHMIDT, Zsuzsanna KISS-CSAPÓ, I. HOLLÓ, Éva VISI-VARGA and Éva BALLA-TERLAKY
a) Pannon Agricultural Univ., Fac. of Animal Science, Guba S. u. 40, H-7400 Kaposvár, Hungary

Original scientific paper
Language: English

ABSTRACT
In the past years several methods have been developed for the determination of the proportion which is of microbial origin of the nitrogen-containing substances passed from the rumen into the abomasum or the small intestine. Recently, on examining the D-amino acid content of foodstuffs, particularly milk and milk products, it has been observed that, in addition to D-Ala, D-glutamic acid (D-Glu) and D-aspartic acid (D-Asp) can also be detected in similar quantities, primarily in products which have links with bacterial activity. This gave rise to the idea of examining the DAPA, D-Glu and D-Asp content of bacteria extracted from the rumen of cattle and that of chyme from the same cattle, in order to determine the type of relation existing among these three components, and to establish whether D-Asp and D-Glu can be used in the estimation of protein of bacterial origin. On determination of the DAPA, D-Asp and D-Glu content by means of amino acid analyser and high performance liquid chromatography of duodenal chyme from five growing bulls and of ruminal bacteria from the same bulls, the following values were established. For chyme (and, in brackets, for ruminal bacteria) r value calculated by means of linear regression was 0.778 (0.758) between DAPA and D-Asp, and 0.703 (0.808) between DAPA and D-Glu. The r values between the crude protein content of ruminal bacteria and the markers examined were found to be the following: DAPA, 0.737; D-Asp, 0.7254; D-Glu, 0.614. In the model experiment performed for the re-obtaining of values for protein of bacterial origin the theoretical values were determined on the basis of D-Asp and D-Glu and values approximately 10 % higher than the theoretical value on the basis of DAPA. It is therefore recommended that in addition to DAPA these other two amino acids be included among the bacterial protein markers.

Key words: bacteria, proteins, amino acids, quanitative determination


ESTIMATION OF STAYABILITY TRAITS IN BLACK-AND-WHITE COWS IN SLOVENIA

J. POGAČARa), K. POTOČNIK, I. KUMP and Anka DOLINAR
a) Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Original scientific paper
Language: English

ABSTRACT
Average stayability rate at age 48 months, which is 75 %, at age 60 months, which is 61 %, and at age 72 months, which is 47 %, was estimated for 4742 Black-and-White cows offspring of 35 bulls that had at least 30 daughters. For estimation of stayability, values should be corrected to milk production. Heritability rates for stayability traits were estimated as follows: 0.05 for stayability at age 48 months, 0.08 for stayability at age 60 months and 0.09 for stayability at 72 months. The genetic variability for stayability traits is satisfactory so that selection to stayability traits is reasonable and necessary from the point of view of economy.

Key words: cattle, breeds, Black-and-White, longevity, stayability, selection, heritability, Slovenia


AN EXAMINATION OF THE MILKING ABILITY OF HUNGARIAN SIMMENTAL COWS

B. HUTHa), I. HOLLO, I. FÜLLER and Zsuzsanna KISS-CSAPO
a) Pannon Agricultural Univ., Fac. of Animal Science, Guba S. u. 40, H-7400 Kaposvár, Hungary

Original scientific paper
Language: English

ABSTRACT
This research project involved examination of the milking ability traits of 75 Hungarian Simmental cows of different sire breed (Hungarian Simmental, German Simmental and Montbéliard). On the basis on the results obtained it was established that with respect to milk flow rate and udder symmetry a substantial spread of values prevailed in the stock. Significant difference between progeny groups derived from breeding bulls of the respective mountain types of the Simmental breed was observed only in the udder index. No definitive relation between data from conformation evaluation of the udder and milking ability indices was established. Milking ability examinations provide data important with respect to issues pertaining both to breeding programmes and to udder health condition; it is for this reason that the authors recommend the reintroduction of such examinations into the selection system in Hungary.

Key words: cattle, cows, milking, milking ability


DEPENDENCE OF MACHINE MILKING DURATION ON DIFFERENT TECHNOLOGICAL PROCEDURE USE

D. KRALIKa), Ž. BUKVIĆ, R. EMERT in R. ZIMMER
a) J. J. Strossmayer Univ. of Osijek, Agricultural Fac., Trg sv. Trojstva 3, CRO-31000 Osijek, Croatia.

Original scientific paper
Language: English

ABSTRACT
Two dairymen groups work was analyzed. One group was working within the system with milk supply (system I) and the other with milking bucket (system II). Milking duration between the two systems as well as differences between dairymen within each of the systems were analyzed. It was determined that there was small difference between dairymen in the “system I” (2.21*) whereas more significant difference was found out in the “system II” (4.76**) which confirms that dairymen didn’t estimate milking operation and its end properly. Such omissions result in poorer milk yield and higher possibility of udder diseases. It indicates that circulating milk-gauge installation is justifiable at milking operation and at the same time it would facilitate dairymen hard work.

Key words: milking, circulating milk-gauge, buckets


INFLUENCE OF CROP DENSITY AND FERTILIZATION ON CORN YIELD AND HIGHER EFFICIENTY IN MILK PRODUCTION

M. JURIŠIĆa), M. STJEPANOVIĆ, Ž. BUKVIĆ, M. DOMAČINOVIĆ and Ivana JURIŠIĆ
a) J. J. Strossmayer Univ. of Osijek, Agricultural Fac., Trg sv. Trojstva 3, CRO-31000 Osijek, Croatia

Original scientific paper
Language: English

ABSTRACT
The investigations were carried out at the experimental plot of the Faculty of Agriculture Osijek and Production unit in Vinkovci during 1993 and 1994. Hybrid Bc 592 was used for the investigation. Stands were arranged with space within rows (for S1-48 000 plants ha-1=29.7 cm, S2-60 000 plants ha-1=23.8 cm and S3-80 000 plants ha-1=17.9 cm) and between rows 70 cm.Three nitrogen fertilisations were applied (N1=90, N2=180 and N3=270 kg ha-1) with 100 kg ha-1 P2O5 and 150 kg ha-1 K2O. Foliar treatments by mixture INA-Fertina K1 in 3 % concentration was carried out twice each year in intensive corn growth phase on one part of the experiment. On the basis of corn grain chemical analysis (concentration of main nutritives and water) carried out in 1993 and 1994 it is shown that increased nitrogen fertilisation in the second and third group had positive influence on protein share increase.The highest energy value was achieved in the third group by conversion of different corn yield of some groups into energy value expressed in FU. Namely it was by 723 FU higher than the first group and by 422 FU higher than the second one. This different corn energy value in groups was conversed into amount of one finished animal product-milk as well as its market realisation and the following values were obtained: more milk (by 654 kg i.e.1.572 kg) was produced in the second and third group than in the first group which financially means 1.635 kn i.e.3.929 kn more than the first one. Similar results as with corn in 1993 were achieved by corn conversion of some groups (1994) into energy value.

Key words: animal nutrition, corn, fertilization, crop density, nutritive value, milk production


CHEMICAL ORGANIC-LEPTIC HONEY DETERMINATION IN HONEY-HERBS IN THE REGION SLAVONIJA AND BARANJA

Z. TUCAKa), Z. PUŠKADIJA, D. BEŠLO, Ž. BUKVIĆ and Zlata MILAKOVIĆ
a) J. J. Strossmayer Univ. of Osijek, Agricultural Fac., Trg sv. Trojstva 3, CRO-31000 Osijek, Croatia

Professional paper
Language: English

ABSTRACT
The ecologic surrounding of Slavonia and Baranja is rich with honey-giving flora, which makes the development of the bee-keeping possible. The honey, as a bee-product gets ever more and more the importance as a nutrition article and also as a medical subastance. In this aim we have analized the content of honey by the Organoleptic and Chemical way. The honey quality, with its properties (colour, smelt and taste) and also by the (content of Proteins, sugars and other parameters) corresponds with its quality with the norms of the Rules of Republic of Croatia and the European union.

Key words: honey, organoleptic properties, chemical properties, honey-giving plants


continued overleaf

 

University of Ljubljana Biotechnical Faculty