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Zb. Bioteh. Fak. Univ. Ljubl., Kmet. Zooteh., 78(June 2001)1, 3–14.

BIBLIOMETRIC ANALYSIS OF THE JOURNAL “ZBORNIK BIOTEHNIŠKE FAKULTETE UNIVERZE V LJUBLJANI. KMETIJSTVO. ZOOTEHNIKA”: A COMPARISON BETWEEN THE YEARS 1986–1987 AND 1996–1997 *

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

Original scientific paper
Language: Slovene

ABSTRACT
Published results of the scientific research, predominantly in scientific journals, are the basic properties of the scientific information and communication. Bibliometrics and its methods systematically collect these data, and further evaluate and analyse them. Therefore the central part of the paper contains data on the quantitative properties of the journal Zbornik Biotehniške fakultete Univerze v Ljubljani. Kmetijstvo. Zootehnika (Research Reports Biotechnical Faculty University of Ljubljana. Agricultural Issue. Zootechnica). The comparative analysis of two periods 1986–1987 and 1996–1997 has shown relatively high number of one-authored articles (34.6 % and 30.3 %). Authors are predominantly from Slovenia, but their articles in the second period were mostly written in English (56 %, 80 %). The analysis of cited items has shown that this is not the only difference between the two periods. The cited items are much newer (mostly articles from distinguished international journals). Almost half of them are less than five years old. Also the scope of journals in which the cited articles were published is much broader. These can be taken as a sign of greater involvement in the international scientific research. Questions of further journal growth, mostly regarding bilingual nature of the journal are the suggestions that authors might be giving to the editors. In the future, the results will be checked with a data analysis for the longer period and compared with similar international journals.

Key words: serial publications / bibliometrics

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* This paper is a rewritten seminar assay, supervisor ass.prof. Primož Južnič, Ph.D.

Zb. Bioteh. Fak. Univ. Ljubl., Kmet. Zooteh., 78(June 2001)1, 15–29.

Mycoplasma synoviae HAEMAGGLUTINATION INVOLVES IMMUNODOMINANT SURFACE MEMBRANE PROTEINS UNDERGOING PHASE- SIZE- AND ANTIGENIC-VARIATION

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

Original scientific paper
Language: English

ABSTRACT
In the majority of Mycoplasma synoviae (MS) strains their VLHA haemagglutinins cleave into N-terminal and C-terminal parts. In MS strain ULB 925 (clone KF9) it was found that monoclonal antibodies (mAbs) 3E10, 5G6 and 4G2 recognise the C-terminal parts of its haemagglutinin, designated pMSA, as integral membrane proteins of 51 and 53 kDa. In the same MS clone mAb 125 recognized the N- terminal parts, designated pMSB, as integral membrane proteins of 47 and 49 kDa. However, in MS strain K1723 mAbs 3E10, 5G6 and 125 reacted with an uncleaved VLHA haemagglutinin of about 90 kDa. In MS strain ULB 925 clones their haemagglutinin- positive (HA+) and haemadsorption- positive (HAD+) phenotypes synthesised pMSA defined by mAbs. About 1 % of the populations which ceased to produce pMSA and produced truncated pMSB1 forms (of 27 to 30 kDa) lost the HA+ and HAD+ phenotype. The switching of the synthesis of pMSA proteins was heritable and usually reversible. In strain ULB 925 (clone KF9) certain populations which ceased to produce pMSA defined by mAb 3E10 started to produce pMSB antigenic variant, recognised by another mAb. In MS strains, besides antigenic- variation of pMSA and pMSB, their size- variants were also observed and they were recognised by antibodies of chickens infected with MS.

Key words: microbiology / Mycoplasma synoviae / immunology / haemagglutination / membrane proteins / protein variation


Zb. Bioteh. Fak. Univ. Ljubl., Kmet. Zooteh., 78(June 2001)1, 31–41.

ESTIMATION OF CROSSBREEDING PARAMETERS FOR LITTER SIZE IN PIGS *

a)+ and Milena KOVAČ
a)
Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia, M.Sc. 
+ Present address: Agricultural Institute of Slovenia, Hacquetova 17, SI-1001 Ljubljana, Slovenia.

Original scientific paper
Language: Slovene

ABSTRACT
In the research 46 960 parities of Swedish Landrace (SL), Large White (LW), and both F1 sows, line 12 (SL x LW) and line 21 (LW x SL) were included. With repeatability animal model the number of piglets born (PB) and the number of piglets born alive (PBA) in the first six litters were analyzed. The differences between genotypes were estimated by crossbreeding parameters. Mathernal components were studied: additive maternal and additive grandmaternal effect as well a maternal heterosis, all treated as independent variables. The contribution of additive maternal effect to the breed differences (SL-LW) was larger for PBA (0.36) than for PB (0.09). The estimated deviation of the F1 crossbreeds from the mid parental value (maternal heterosis effect) was 0.69 and 0.72, for PB and PBA, respectively. The additive grandmaternal effect which expresses the differences between crossbreeds (SL x LW-LW x SL) is negligible (0.06 for PB and –0.03 for PBA).

Keywords: pigs / reproduction / litter size / crossbreeding parameters / animal model

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* This paper is a part of a master of science thesis (justification April 19, 2000), supervisor assoc.prof. Milena Kovač, Ph.D.

Zb. Bioteh. Fak. Univ. Ljubl., Kmet. Zooteh., 78(June 2001)1, 43–56.

ETHOLOGICAL PRINCIPLES IN DAIRY CATTLE FARMING *

Metoda SENICA, a) and Vida REZAR
a)
Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia, Assoc.Prof., Ph.D., M.Sc.

Original scientific paper
Language: Slovene

ABSTRACT
In the herd of 34 dairy cows, 11 cows of Brown and 4 cows of Simmental breed were chosen in order to observe the impact of two different housing systems on animal behaviour. The first was permanent stable husbandry, where cows were tied by Grabner ties. The second one was similar, but the animals were let outdoors to graze on the pasture for seven hours on day (pasture husbandry). Eating period of cows in pasture husbandry was longer, while drinking, chewing and resting time was shorter compared to cows in stable husbandry. Despite the shorter resting period the cows were lying down on pasture more often than the cows in stable husbandry. This may be due to easier lying down or rising on non slippery grassland and unlimited movement possibility. The frequency of defecation and urination was higher in pasture than in stable husbandry, especially in the hour prior to release to pasture. Presumably the cows were nervous because they had been hardly waiting to be let from the stable onto the pasture. In pasture husbandry a lot of licking of other cows and self licking was noticed. The lack of licking and scratching possibility in stable husbandry was compensated by frequent grooming against stable fittings.

Key words: cattle / dairy cows / ethology / animal behaviour / animal welfare / housing system

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* The article is a part of a master of science thesis (justification October 19, 2000), supervisor assoc. prof. Ivan Štuhec, Ph.D.

Zb. Bioteh. Fak. Univ. Ljubl., Kmet. Zooteh., 78(June 2001)1, 57–68.

AMINO ACID COMPOSITION OF BEANS AND LENTIL *

a), Vekoslava STIBILJ, Jasna M. A. STEKAR and Etiennette COMBE
a)
Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia, Asist., Ph.D., M.Sc.

Original scientific paper
Language: English

ABSTRACT
The amino acid composition of raw seeds, lyophilised cooked seeds and the water soluble matter from cooking of three varieties of Slovenian common beans (Phaseolus vulgaris), namely Češnjevec, Semenarna 22 and Cipro, and of the French green lentil (Lens esculenta) Anicia was determined. For the raw seeds, crude protein contents vary from 21.5, 23.5 and 26.2 g per 100 g of dry matter for the Češnjevec, Cipro and Semenarna 22, respectively, and 26.7 g in the lentil. However, non-protein N is higher in the lentil than in the beans. The contens of amino acids in beans are similar, whereas for the lentil concentrations of methionine and tyrosine are lower and the concentration of arginine much higher than for the beans. After cooking the amount of some amino acids (in 100 g of crude protein) increased, especially tyrosine, methionine and cystine, more in lentil and less in beans. The EAAI was higher in beans than in lentil and was increased after cooking the legumes. CS increased after cooking by more than 100 % for the lentil and 20 % for the beans. Analysis of the material obtained by drying the cooking water showed that predominantly non-essential amino acids were present in this fraction.

Key words: legumes / Phaseolus vulgaris / Lens esculenta / animal nutrition / human nutrition / amino acids / EAAI

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* This paper is a part of dissertation thesis (justification December 7, 2000), supervisor prof. Jasna Stekar, Ph.D. and co-adviser Etiennette Combe, “Ingénieur agronome diplomée, Chargée de Recherhes”.

 

University of Ljubljana Biotechnical Faculty