Held: from 05/04/94 to 05/04/94
Summary: Agriculturists choose any of plan which suits to local
climate and market. On the fields in Europe, had produced to much some
crops, specially cereals. In the endeavouring decrease of cereals product,
was suggested alternative production. Most of then was product rich with
proteins or oil. For the most of this non-cereal crops, organized
pollination by bees is very important. Consciousness about pollinations had
been developed after the first organized pollination by bees in 1910.
Today's is defining primary principle of pollination tehnology by
bees:-corrects bee-hive dispositons, necessarey number of bee-colony, by
training bees and time of pollination implementing. By putting agriculture
on a market course, we expect increasing area under the non-cereal plants
and increasing requirements for bees.
Keywords: Apis mellifera carnica, pollination technology
Type of paper: Paper in proceedings
Title: Biological monitoring
- Authors:
- Zmaić, B.
- Kezić, Nikola (20862)
- Gluščević, T.
Proceedings title: I stručni skup sekcije vodovoda i kanalizacije
Language: hrvatski
Place: Krapinske Toplice, Hrvatska
Year: 1993
Pages: from 53 to 59
Meeting: I stručni skup sekcije vodovoda i kanalizacije Hrvatskog društva za zaštitu voda i mora
Held: from 12/02/93 to 12/04/93
Summary: It isa necesary to have simple and reliable method for
detection of dangerous and harmful substances. Biological tests showed
thier value in those cases.
By folowing of behaviour of fishes, crabs or any other sensitive water
organizms subjected to influence of different chemicalc or industial
efluents is possible to notice effects of wide spectra diferent substances.
Usually is followed activity of organizms, thir phisiological funktion,
mortalities, and so on.
Keywords: Drinking water, quality control, fishes, filtration
Type of paper: Paper in proceedings
Title: Beekeeping in the Republic of Croatia past and present
- Authors:
- Kezić, Nikola (20862)
- Šver, Zvonimir (190953)
- Capan, Nikola (101136)
- Mišanović, Đuro (176711)
- Dražić, Marica
- Bubalo, Dragan
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee breeding on the islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 5 to 7
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Beekeeping in the Republic of Croatia has a long tradition.
Our magazine "Pcela" has 114 years of continuous Publishing. The last ten
years the number of beekeepers has oscillated between 10 - 12 thousand, and
in their possession the number of beecolonies oscillated between 100 - 120
thousand. The majority of commercial beekeepers and beecolonies is situated
in the continental part of country. These colonies start their spring
development in February but can be stopped by colder and wet weather in the
next month. Nevertheless, in April we have the first natural swarms.
The first queens are produced in the middle of May on the continental area,
but on the Islands they can be produced by the end of April.
The dominant bee product is honey, but our beekeepers produce significant
quantities of wax, pollen, propolis, bee-venom, queens, swarms and some
royal jelly.
Keywords: Beekeeping, queen production, islands
Type of paper: Paper in proceedings
Title: Oilseed rape and bees in Croatia
- Authors:
- Mustapić, Zdravko
- Pospišil, Milan
- Dražić, Marica
- Kezić, Nikola (20862)
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee breeding on the islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 48 to 55
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Besides sunflower, oilseed rape is the most important oil
plant in Croatia. Before the war, oilseed rape was grown on as many as
29,000 ha while today there are only 12 - 15,000 ha under this crop. Oil
demand could be satisfied by planting major oil plants on 120,000 - 130,000
ha, that is, on less than 10% of arable areas of Croatia, which is
considered as optimal for a modern plant production system. Respecting the
demand for soybean grits, half of these areas should be under soybean while
sunflower and oil rape should be grown on the other half.
There are 60,000 beehives in Croatia, only 25% of which are kept in movable
hives. Of the total number of bee colonies in Croatia, one third is in the
regions unsuitable for oil rape planting (Dalmatia). The remaining two
thirds of colonies, barely sufficient for pollination of the existing areas
under oil rape, are not all of them engaged on oil rape because of
simultaneous flowering of other honey plants. If areas under oil rape are
expanded to the recommended 30,000 - 40,000 ha, and the negative trend in
bee-keeping is continued, lack of pollinators on planted areas will be felt
very soon.
Keywords: Apis mellifera carnica, oil rape, pollination
Type of paper: Paper in proceedings
Title: Cubital index of honeybee workers (Apis mellifera carnica)
of three different origins on three different locations
- Authors:
- Poklukar, Janez
- Pechhacker, Hermann
- Kezić, Nikola (20862)
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee breeding on the Islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 21 to 23
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Cubital index of honeybee workers of three different
origins of Apis mellifera carnica managded on three different locations was
investigated. Interaktion between the origin of queens and environment
induced significantly different values of cubital index on different
locations at the same origin of queens.
Keywords: Apis mellifera carnica, cubital index, ecotype
Type of paper: Paper in proceedings
Title: Breeding ligurian queen bees (Apis mellifera ligustica) on
Kangaroo island, South Australia
- Authors:
- Woodward, D.R.
- Kezić, Nikola (20862)
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee breeding on the Islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 32 to 37
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Kangaroo Island, located off the southern of South
Australia, has been home to an isolated reserve of an ecotype of Apis
mellifera ligustica for 110 years. While the origin of the initial Italian
bees imported is still debated by scientists and historians, hybridisation
after inception of the sanctuary in 1885 seems unlikely. The isolation of
the island and a recent proclamation have helped to preserve a relatively
disease free population. Limitations exist within the ecotype with regard
to brood survival, reduced sex alleles and an inconsistent colour line,
however these factors can be largely overcome through careful selection of
queen mother colonies by queen breeders, and outcrossing with feral stock
throught the island to utilise the available variation in the population.
Keywords: Apis mellifera ligustica, breeding, selection, Kangaroo Island
Type of paper: Paper in proceedings
Title: Long term behaviour of 137Cs and 40K in honey in Croatia
- Authors:
- Barišić, Delko (129652)
- Lulić, Stipe (26872)
- Vertačnik, Astrea (51901)
- Dražić, Marica
- Kezić, Nikola (20862)
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee Breeding on the Islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 56 to 60
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Activities of 137 Cs and 40 K were measured by
gamma-spectrometry method in honey samples collected each year from 1990 to
1994 from northern and nirth-western parts of the Republic of Croatia
territory. Activities of 137 Cs in honey decrease continuously during this
period, supporting previously observed indications that caesium transfer
from soil to plants is the temporally variable parameter. In cases of
meadow-flowers bee pasture type, 137 Cs activity in honey decreases
significantly faster than in cases when bee pasture was based on bush
and/or tree flowers. Activities of 40 K have very stable values over time.
but that fact is not sufficient to exclude possible competitive effects of
potassium uptake on caesium uptake. Results indicate the importance of free
caesium presence in soil, where plant roots systems are developed, on the
caesium uptake from soil to plants and honey.
Keywords: Caesium, pottasium, honey, soil, plant
Type of paper: Paper in proceedings
Title: Accidental poisonings of honeybees in Croatia in the
period 1980-1990
- Authors:
- Dražić, Marica
- Hrlec, G.
- Srebočan, Emil (101566)
- Kezić, Nikola (20862)
- Editors
- Kezić, Nikola (20862)
Proceedings title: Bee breeding on the islands
Language: engleski
Place: Zagreb
Year: 1995
Pages: from 61 to 62
Meeting: Bee breeding on the islands
Held: from 04/19/95 to 04/26/95
Summary: Investigation of poisonings of honeybees have been carried
out by the Veterinary faculty and Faculty of Agriculture Univeristy of
Zagreb. 57 samples of poisoned bees were analysed between 1980 and 1990.
Analyses for pesticide residues were carried out only in samples where bee
diseases were not detected. Analyses were carried out with gas liquid
chromatography (GLC) or high preassure liquid chromatography (HPLC), and in
a few cases, thin liquid chormatography (TLC) was used.
From 1980 to 1985 70% of total mortalities occurred. With large scale of
application of selective insecticides after 1984. the number of affected
apiaries was reduced. The number of poisoned bee colonies during the peroid
of examination was larger than 3000. The data about involved bee colonies
were not always exact. Insecticides caused poisonings in 82%, fungicides in
7%, a combination of insecticide and fungicide in 4%, and in 7% the cause
of death was not identified.
Keywords: Honeybees, poisonings, pesticide residuals
Other:
Type of paper: Summary in proceedings
Title: 137Cs in flowers, pollen and honey from Republic Croatia
territory four years after Chernobyl accident.
- Authors:
- Barišić, Delko (129652)
- Lulić, Stipe (26872)
- Kezić, Nikola (20862)
- Kapetanić, Saša
- Editors
- Borneck, Rajmond
- Laere, O. Van
- Sulimanović, Đuro
- Kezić, Nikola (20862)
Proceedings title: Programme and Abstract of International Symposium on Beebreeding and selection
Language: engleski
Place: Zagreb
Year: 1991
Pages: from 16 to 16
Meeting: International Symposium on beebreeding and selection
Held: from 05/06/91 to 05/08/91
Summary: 137Cs concentration was measured on flowers, pollen and
honey bygamma - spectrometry. The samples were collected from
RepublicCroatia territory for years after Chernobyl accident. Activity
of137Cs in pollen, higher than in honey, indicates that cesiumbehaves
analogously to potassium. The results show that equalcesium concentration
in surface soil layer results in highercesium activities in honey in cases
of meadow flower's honey beepasture, than in cases when pasture was based
on bush or treeflowers.
Keywords: 137Cs, honey, pollen, flowers, radioactivity, Chernobyl accident, Croatia
Type of paper: Summary in proceedings
Title: Brood development different carnica subpopulation (Apis
mellifera carnica) in north - west Croatia
- Authors:
- Bubalo, Dragan
- Kezić, Nikola (20862)
- Dražić, Marica
- Šver, Zvonimir (190953)
- Poklukar, Janez
- Pechhacker, Hermann
- Editors
- Sulimanović, Đuro
- Hajsig, Danko
- Makek, Zdenko
Proceedings title: Veterinarska znanost i struka
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 151 to 151
Meeting: Veterinarska znanost i struka
Held: from 06/24/93 to 06/25/93
Summary: The bees have different reactions on changes of clima or
pastureconditions.
The size of brood, fastness of development in spring and equalitysize of
brood from group of colonies, are very importantindicators on adapation to
environment.
During summer 1992. is established beeyard with 36 hives ingroups with 12
hives each. In first group of hives were addedqueens well known beebreader
from Croatia (mr. Z. Šver), insecond, queens from Kmetijski Inštitut from
Ljubljana, and third,queens from Institut fur Bienenkunde from Austria.
Till autumn, beecolonies were equalized, and started winteringwith same
strenght.
We started to measure the surface of brood in spring 1993.
Beecolonies from Croatia had the highest surface of the brood.Smaller
surface of the brood had bees from Slovenia. In coloniesfrom Austria total
brood surface was the smallest, butdifferrences inside of group were
significant - some of thesecolonies had the highest amount of brood.
Keywords: brood, Apis mellifera carnica,
Type of paper: Summary in proceedings
Title: Trace concentrations of lead, cadmium copper and zimc in
honey and bee products from Croatia
- Authors:
- Kozar, Sonja
- Modrić, Ivica
- Šoša, Marinko
- Kezić, Nikola (20862)
- Kniewald, Goran
- Branica, Marko
- Editors
- Borneck, Rajmond
- Laere, O. Van
- Sulimanović, Đuro
- Kezić, Nikola (20862)
Proceedings title: Programme and Abstracts, International Symposium on Bee Breeding and Selection
Language: engleski
Place: Zagreb
Year: 1991
Pages: from 17 to 17
Meeting: International Symposium on beebreeding and selection
Held: from 05/06/91 to 05/08/91
Summary: Concentration of trace heavy metals (lead, cadmium, copper
andzinc) in hony pollen and beeswax collected at several
locationsthroughout Croatia were investigated in order to assess
thepotential influence of trace metal contamination of theseproducts, two
types of sites were selected. At "clean" sites, theforaging grounds were as
far away as possible from roads andindustrial areas. "Urban" and
"suburban" sites were those wherethe foraging range is located within a
city area with all itsenvironmental influences with respect to these trace
heavymetals.
Analyses were done by differential pulse anodic strippingvoltammetry
(DPASV) after wet - ashing of the samples. Therespective concentrations
(expressed as wet -weight) of thetrace metals were the following: Honey (in
/ug / kg): 0,3 - 4,4for Cd, 15 - 540 Pb, 180 - 1100 for Cu and 450 - 11200
for Zn;Pollen (in /ug / kg): 20 - 90 for Cd, 100 - 2000 for Pb, 1000 -6300
for Cu, and 13200 - 38700 for Zn; Beeswax (in /ug / kg): 0,8- 21 for Cd,
160 - 1200 for Pb, 410 - 2200 for Cu and 2700 -21100 for Zn.
Lower concetrations of all elements were found at "clean" sites.All trace
metal values within the legal tolerance limits forhoney considering average
dietary intakes. The ratherconcentrations of trace metals in honey and the
inherentveriability of this products with regard to floral sorce,foraging
range, as well as spatial and sesonal fluctuations,probably make it only
partially suitable for biologicalmonitoring of trace metals.
Keywords: honey, pollen, wax, heavy metals, lead, cadmium, copper, zinc,
Type of paper: Summary in proceedings
Title: Endangerement of autohtonous bee subspecies (Apis
mellifera carnica) in the Republic oc Croatia
- Authors:
- Dražić, Marica
- Bubalo, Dragan
- Kezić, Nikola (20862)
- Editors
- Zdravko, Lorković
- Milošević, Bogomir
Proceedings title: Entomofauna Hrvatske 1992. Drugi kolokvij i savjetovanje, sažetci i referati
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 19 to 19
Meeting: Entomofauna Hrvatske 1992. Drugi kolokvij i savjetovanje
Held: from 10/15/92 to 10/16/92
Summary: Autochtonous bee subspecies Apis mellifera carnica var
panonicais expanded on the territory of the Republic of Croatia. In
thewhole world it is known by production values. On the basisi ofmeasuring
primary (fundamental) morphometric parameters in thenatural population of
bees in region of Podravina the significantpresence of the different
strains of bees is determined. Naturalpopulations of bees are liable to
changes and mixing with otherstrains, so it is necessary to protect them.
Keywords: Apis mellifera carnica, morfometry, Croatia,
Type of paper: Summary in proceedings
Title: The influence of ethanolic extract of propolis addition on
physicochemical and microbiologic quality of "Milpy"
- Authors:
- Mišanović, Đuro (176711)
- Kezić, Nikola (20862)
- Capan, Nikola (101136)
Proceedings title: Zbornik Sažetaka XXX. Simpozij za mljekarsku industriju
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 27 to 27
Meeting: XXX. Simpozij za mljekarsku industriju
Held: from 12/08/92 to 12/09/92
Summary: The purpose of this work was to determine the influence
ofethanolic extract of propolis adition on physicochemical andmicrobiologic
quality of "Milpi"
Next parameters were determined:
- active and titratable acidity
- conductvity
- colony count.
Results of investigation show large influence of ethanolicextract of
propolis addition on storage quality of "Milpi" andcolony count.
Keywords: propolis, titratable acidity, conductivity, microbiologic quality,
Type of paper: Summary in proceedings
Title: Wintering of different Carnica ecotypes (Apis mellifera
carnica) in the north west part of Croatia
- Authors:
- Bubalo, Dragan
- Langer, Zlatko
- Dražić, Marica
- Pechhacker, Hermann
- Poklukar, Janez
- Kezić, Nikola (20862)
- Editors
- Gomerčić, Hrvoje
Proceedings title: Peti koongres biologa Hrvatske
Language: hrvatski
Place: Zagreb
Year: 1994
ISBN/ISSN: 953-6241-01-3
Pages: from 228 to 229
Meeting: Peti kongres biologa Hrvatske
Held: from 10/03/94 to 10/07/94
Summary: Carniolan bee (A. m. carnica, P.) is originated on Balkan
penisula, Pannonian plain, and south-east side of Alps. In the experiment
was followed wintering and spring development of Alpinian, Subalpinian and
Pannonian ecotypes. Food consumption and spring development were measured
before and after winter. On experimental beeyard in Grubišno Polje 36
beehives during 1992 year were divided in three groups. During 121 day of
winter time from 20th November to 21th Mart remarkable difference was not
detected in food consumption (4.46 kg average) and number of bees. Big
difference was in cloud and raining April. Bes from Austria were used next
8.59 kg of food, bees from Slovenia 2.13 kg, but bees from Croatia
increased amount of honey for 0.85 kg. At the end of April bees from
Croatia were biggest and biggest amount of brood.
Keywords: Honeybee, Apis mellifera carnica, ecotype, wintering
Type of paper: M.A.
Title: Biological characteristics of different ecotypes carniolan
bee (Apis melliferas carnica P. 1879)
Faculty: Agronomski fakultet Sveučilište u Zagrebu
Author: BUBALO DRAGAN
Date of defense: 04/07/95
Language: hrvatski
Number of pages: 74
Summary: On the apiaries in Mala Dapčevica, Republic of Croatia and
Lunz am See republlic of Austia a study of biological characteristics of
different ecotypes carnioline bee was made in 1993. The colonies in both
experimental apiaries weredivided in three groups with 12 queens of alpine,
subalpine and pannonian ecotypes. The experiment was designed to establish
the honey consuption during the every colony. During the whole breeding
season brood rearing dynamics, the strenth of the colony, the swarming
impulse and the characteristic behaviour of the bees (aggresiveness,
quietness on the combs) were established every fortinght.
The biological characteristics of the pannonian ecotype (autochthonous bees
in the Republic of Croatia) weren't statistical relevantly different from
alpine and subalpine ecotype in most established parameters. The replacing
of the bees to a newe environment didn't influence the food consuption in
the course of the winter. During the spring low temperature wave the bees
adapted to the local climate conditions consumed the last honey.
The number of laying cells was higher with all ecotypes in Mala Dapčevica
than in Lunz am See in the same period of the year. The difference in the
number of laying cells between the locations was the greatest with Croatian
queens. The Croatian queens layed on the average 111867, the Slovenian
queens 78018, and Austrian ones 78000 cells more in Mala Dapčevica than in
Lunz am See.
The bees didn't recognize all food sources in the new enviroment, which
could be best observed in the lach of pollen in the colonies at the Lunz am
See in the last two measurings. The lack of pollen affected the weakening
of the coloines.
Keywords: Apis mellifera carnica, ecotype, behaviour, brood
Type of paper: Mentorship
Title: Genetic properties of corbicula size of honeybee workers
Apis mellifera carnica in relation to the honey production.
Faculty: Agronomski fakultet Sveučilište u Zagrebu
Mentor: KEZIĆ NIKOLA
Date of defense: 11/19/92
Number of pages: 160
Author: Poklukar dr. Janez
Degree level: Ph.D.
Type of paper: Mentorship
Title: Biological characteristics of different ecotypes carniolan
bee (Apis mellifera carnica P. 1879)
Faculty: Agronomski fakultet Sveučilište u Zagrebu
Mentor: KEZIĆ NIKOLA
Date of defense: 04/07/95
Number of pages: 74
Author: Bubalo Postdiplomant Dragan
Degree level: M.A.
Type of paper: Project
Title: Honey Bees and Thir Products as an Indicator of
Environmental Caesium Pollution
- Authors:
- Kezić, Nikola (20862)
- Barišić, Delko (129652)
- Lulić, Stipe (26872)
- Vertačnik, Astrea (51901)
- Petrić, Božidar
- Seletković, Zvonko
- Hus, Mihovil
- Kraljević, Petar
- Bubalo, Dragan
- Dražić, Marica
Ordering party: US Department of Agriculture (USDA)
Institution depot: Ministarstvo za znanost i tehnologiju Republike Hrvatske
Year: 1995
Number of pages: 22
Language: engleski
Summary: The aim of this Project is to study dynamics and faith of
137Cs in the environment, it's concentration in soils, persistency and
outgrowth in food chain in relation to the time after Chernobyl accident.
137Cs activity concentration in honey bee products will be followed in this
work. 137Cs concentration measurements in honey, pollen propolis, wax and
honey bees after the pasture on various plant species will be used to
determine the capability of specific species to be an indicator organism
for evaluation of environment contamination. Collected data will be the
valuable basis for the assessment of 137Cs environment contamination and
the prediction of it's behavior in case of future accidents.
Keywords: Environment, contamination, bee products, bioindicators, 137Cs
Type of paper: TV broadcast
Title: Small apiaries
- Authors:
- Kezić, Nikola (20862)
- Šimpraga, Milljenko
TV station: OTV d.d. Teslina 7,
Name of emission (broadcast): Čudesni svijet životinja
Year: 1994
Language: hrvatski
Summary: Uniform distribution of bees is significant for pollination
of wild and cultivable entomophilous plants. Small stationary apiaries are
the best solution in recent needs. In emission was explained to potential
beekeepers how to establish apiary (placing hives, choose type of hive),
and work on apiary during the season.
Keywords: Beekeeping, small apiaries, seasonal work
Other: Kroz 90 minuta trajanja emisije, odgovoreno je na niz pitanja
koja su postavljali gledatelji. Tijekom emisije korišten je niz prethodno
pripremljenih priloga na različitim pčelinjacima.
Type of paper: TV broadcast
Title: Bee products
- Authors:
- Šimpraga, Milljenko
- Kezić, Nikola (20862)
- Dražić, Marica
TV station: OTV d.d. Teslina 7,
Name of emission (broadcast): Čudesni svijet životinja
Year: 1995
Language: hrvatski
Summary:
It is shown production, processing and quality control of bee products.
Necessity and possibility of estimating gographical origin of bee products
were stressed out.
Keywords: Bee products, honey, pollen, propolis, quality control, geographical origin
Other: Kroz snimljeni materijal i priloge za ovu emisiju pokušao se
prikazati dio istraživanja na projektu 4-05-007, prihvaćenom za
financiranje od Ministarstva za znanost i tehnologiju Republike Hrvatske.
Type of paper: Invited lecture
Title: Melisopalinological analyses in Croatia
Institution: XII Convegno Internazionale-Il Miele di Qualita: Quali i Parametri Caratterizzanti, Cons. Obbl. fra gli Apic. della Prov. di Gor
Year: 1993
Type of paper: Invited lecture
Title: The influence of recent changes in Croatian agriculture on
honeybee pollination of enthomphilous plants
Institution: XIII Convegno Internazionale - Le Api al Servizio Delle Produzioni Agrarie, Cons. Obblig. fra gli Apic. della Prov. di Gorizia
Year: 1994
Type of paper: Invited lecture
Title: Comparative biological and behvaioral studies of different
strains of Apis mellifera carnica
Institution: Institut fur Bienenkunde Hohen Neudorf
Year: 1993
Type of paper: Invited lecture
Title: Melisopalinological analysis of honey
Institution: Zdenka d.d. za pčelare kooperante
Year: 1993
Type of paper: Invited lecture
Title: Geographical origin of bee products
Institution: Zdenka d.d. za pčelare kooperante
Year: 1994
Type of paper: Invited lecture
Title: Stacionar and mobile beekeeping with LR hives
Institution: Zdenka d.d. za pčelare kooperante
Year: 1995
