Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Anđelko Opačak"'
Autor:
Dinko Jelkić, Anđelko Opačak
Publikováno v:
Poljoprivreda, Vol 29, Iss 1, Pp 43-48 (2023)
This study’s objective was to explore some of the annual Prussian carp’s (Carassius gibelio) biological characteristics (sex ratio, length–weight ratio, and gonado somatic index - GSI) in the Kopački Rit Nature Park in Croatia. The Prussian ca
Externí odkaz:
https://doaj.org/article/2e193b6ff1b246448b6aa0beb64a4604
Publikováno v:
Poljoprivreda, Vol 25, Iss 1, Pp 64-68 (2019)
Distribution of the European mudminnow, Umbra krameri, Walbaum 1792, in Croatia is scarce with only few confirmed localities. In order to confirm presence of the European mudminnow in amelioration canal network along the Drava River an electrofishing
Externí odkaz:
https://doaj.org/article/df066ee957ac489aaf987b17ed0cf37f
COMMERCIAL FISHERIES ON THE DANUBE IN THE REPUBLIC OF CROATIA ANALYZED BY THE FOX AND SCHAEFER MODEL
Publikováno v:
Croatian Journal of Fisheries, Vol 71, Iss 3, Pp 136-141 (2013)
Official data of the Ministry of Agriculture, Directorate of Fisheries was used in order to analyze commercial fishing on the Danube in the Republic of Croatia between 2004 to 2009 (average annual catch was 39,088.05 kg ± 7,450.06 kg. The number of
Externí odkaz:
https://doaj.org/article/5552b76983c14df8b714b7d741ff1789
Publikováno v:
Croatian Journal of Fisheries, Vol 70, Iss 1, Pp 9-17 (2012)
Postembryonic rearing of carp larvae in closed recirculatory system was conducted in 2009 at the fish farm Ribnjak LLC, Donji Miholjac, Croatia. The research was conducted in two test groups (A and B with three iterations in each) with a control grou
Externí odkaz:
https://doaj.org/article/a443fe2ccc83453c99171d9a1a7a54cf
Autor:
Zlatko Puškadija, Anđelko Opačak, Tihomir Florijančić, Dinko Jelkić, Pero Mijić, Ivica Bošković
Publikováno v:
Poljoprivreda, Vol 14, Iss 2, Pp 71-74 (2008)
Modern beekeeping does not accept swarm from the branch as a part of technological process. Modern beekeeper produces an artifical swarm; a bee nuclei; when it is the most suitable period for him; in terms of pasture and climate conditions. Organizin
Externí odkaz:
https://doaj.org/article/f48fedc1bfb544da80f8127d6510f22d
Publikováno v:
Croatian Journal of Fisheries, Vol 66, Iss 4, Pp 133-145 (2008)
Various cormorant diet assessment methods are used to assess their daily meal in order to evaluate, using these and other data, the damage to commercial fish farms as well as the damage on open waters caused by cormorants. All of the parameters used
Externí odkaz:
https://doaj.org/article/acc8b211206c4f1f8eca0097cc1f3d61
Publikováno v:
Poljoprivreda, Vol 10, Iss 1, Pp 62-67 (2004)
A comparison of the Lipizzaner and Holstein breed offspring shows the growth intensity and the development of body measurements at specific age until turning three. 57 Lipizzaner and 25 Holstein breed foals were included by the research. The withers
Externí odkaz:
https://doaj.org/article/f6445193349f49e1a050b83dec0654d0
Publikováno v:
Croatian Journal of Fisheries, Vol 62, Iss 1, Pp 17-26 (2004)
Daily meal of the Great Cormorant (Phalacrocorax carbo sinensis), joined with the number of birds and composition of fish in the meal, has high importance in total calculation of damage-costs on fish stock. The weight of fish in daily meal is regardi
Externí odkaz:
https://doaj.org/article/22d1e2482b4c4d4d92295cb41127b1aa
Autor:
Tihomir Florijančić, Mario Škrivanko, Zlatko Puškadija, Irena Listeš, Tanja Bogdanović, Siniša Ozimec, Dinko Jelkić, Anđelko Opačak, Ivica Bošković
Publikováno v:
Italian Journal of Animal Science, Vol 8, Iss 3s, Pp 222-224 (2010)
The risk of wild ducks exposure to heavy metals in the environment was assessed by analyzing 20 wild ducks shot in the hunting area at the fish farm in Donji Miholjac, Eastern Croatia. Liver samples obtained from 10 Mallards and 10 Common Pochards we
Externí odkaz:
https://doaj.org/article/be6abe2c77ae4f1b8fc024c0d99f356e
Publikováno v:
Croatian Journal of Fisheries, Vol 56, Iss 4, Pp 143-151 (1998)
In 1997 and 1998 in the “Ribnjak 1905”•d. d. Našice hatchery artificial spawing of European catfish (Silurus glanis L.) was researched under productive conditions using small doses of carp pituitary (CP). Befiwe dosing the carp pituitary gland
Externí odkaz:
https://doaj.org/article/70ee9a2f3b2b4e60a84ba9808afab545