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1

Use of organic and mineral materials for biofiltration of air in hatcheries

100%
Chmielowiec-Korzeniowska A., Tymczyna L., Drabik A.
Annals of Animal Science
|
2007
|
tom 07
|
nr 1
2

Genotypic diversity, antimicrobial resistance and screening of Vibrio cholerae molecular virulence markers in Vibrio alginolyticus strains recovered from a Tunisian Ruditapes decussatus hatchery

84%
Mechri B., Medhioub A., Medhioub M. N., Aouni M.
Polish Journal of Microbiology
|
2013
|
tom 62
|
nr 3
In this study, a total of 54 Vibrio alginolyticus strains were analyzed. The isolates were recovered from different compartments of the Ruditapes decussatus hatchery in the National Institute of Marine Sciences and Technologies, Monastir, Tunisia. All isolates were biochemically identified (API 20E and API ZYM strips), characterized by amplification of the Hsp-40 gene polymerase chain reaction (PCR) and analyzed by enterobacterial repetitive intergenic consensus (ERIC)-based genotyping to evaluate genetic relationship between the isolated strains. We also looked for the presence of ten V. cholera virulence genes (toxRS, toxR, toxT, toxS, tcpP, tcpA, ace, vpi, zot and ctxA) in the genomes of Vibrio isolates. The antibiotics susceptibility, exoenzymes production and in vitro cytotoxic activitiy against HeLa cell line were also carried out for all tested bacteria. Most of V. alginolyticus isolates showed significant antimicrobial resistance rates to at least ten antibacterial agents. For most isolates, the minimum inhibitory concentration (MIC) data showed that tetracyclin and streptomycin were the most effective antibiotics. Construction of the phylogenetic dendogram showed that studied isolates were in general genetically heterogeneous; however some Vibrio strains were present in different structures of the R. decussatus hatchery. The V. cholerae virulence genes investigation showed a wild distribution of toxS (49/54), toxR (45/54) and toxT (22/54) genes among V. alginolyticus strains isolated from the R. decussatus rearing system. Cytotoxic effects of several Vibrio extracellular products (28/54) were also observed on HeLa cells.
3

A new Gyrodactylus strain on brown trout (Salmo trutta) in Janisjarvi, Russian Karelia, and a literature revision of salmonid parasites of the genus Gyrodactylus in North-Western Russia and adjacent areas

84%
Ieshko E., Lebedeva D., Lumme J.
Acta Parasitologica
|
2015
|
tom 60
|
nr 1
4

Feeding of hatchery-reared juvenile Atlantic sturgeon, Acipenser oxyrinchus Mitchill, released into the Drweca River

84%
Bogacka-Kapusta E., Wiszniewski G., Duda A., Kapusta A.
Archives of Polish Fisheries
|
2011
|
tom 19
|
nr 2
5

The impact of ponds and hatcheries on the ichthyofauna of the Dobra River [Central Oder River Tributary]

84%
Witkowski A., Paszkowski P.
Archives of Polish Fisheries
|
2002
|
tom 10
|
nr 2
Many fish species migrate through the supply streams of fish cultivation facilities (ponds, farms and hatcheries). These streams are the sources of so-called exotic species which are undesirable in open waters. They appear in the Dobra River when ponds are drained and during other hatchery works conducted in spring (April-May) and autumn (October-November). As a result, the number of species varies seasonally from six to 15. The ichthyofauna density increases from 1.70 to 124.94 specimens 100 m⁻² , while the biomass grows from 27.86 to 962.95 g 100 m⁻² . The majority of escapee fish belong to limno- and stagnophilous species. Most of these fish remain in this foreign environment only for a short time of 2 to 4 months.
6
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Efficacy of a novel biofilter in hatchery sanitation: II. Removal of odorogenous pollutants

84%
Tymczyna L., Chmielowiec-Korzeniowska A., Drabik A., Skorska C., Sitkowska J., Cholewa G., Dutkiewicz J.
Annals of Agricultural and Environmental Medicine
|
2007
|
tom 14
|
nr 1
The present research assessed the treatment effi ciency of odorogenous pollutants in air from a hatchery hall vented on organic and organic-mineral beds of an enclosed-container biofi lter. In this study, the following media were used: organic medium containing compost and peat (OM); organic-mineral medium containing bentonite, compost and peat (BM); organic-mineral medium containing halloysite, compost and peat (HM). The concentration of odorogenous gaseous pollutants (sulfur compounds and amines) in the hatching room air and in the air after biotreatment were determined by gas chromatography. In the hatchery hall among the typical odorogenous pollutants, there were determined 2 amines: 2-butanamine and 2-pentanamine, hydrogen sulfi de, sulfur dioxide, carbon disulfi de, sulfi des and mercaptans. Ethyl mercaptan showed the highest levels as its mean concentration in the hatchery hall air exceeded 60 μg/m3 and in single samples even 800 μg/m3. A mean concentration of 2-butanamine and sulfur dioxide in the examined air also appeared to be relatively high – 21.405 μg/m3 and 15.279 μg/m3, respectively. In each fi lter material, the air treatment process ran in a different mode. As the comparison reveals, the mean reduction of odorogenous contaminants recorded in the hall and subjected to biotreatment was satisfying as it surpassed 60% for most established pollutants. These high removal values were confi rmed statistically only for single compounds. However, a low removal level was reported for hydrogen sulfi de and sulfur dioxide. No reduction was recorded in the bentonite supplemented medium (BM) for sulfur dioxide and methyl mercaptan. In the organic medium (OM) no concentration fall was noted for dipropyl sulfi de either. In all the media investigated, the highest removal rate (100%), not confi rmed statistically, was observed for carbon disulfi de. Very good results were obtained in the medium with a bentonite additive (BM) for both identifi ed amines, whose mean elimination rate exceeded 60% (p≤0.05). The present research proved that diethyl sulfi de is most susceptible to biofi ltration (over 80%) in the bed supplemented with halloysite (HM) and bentonite (BM) (p≤0.05).
7

Restriction analysis of mtDNA in whitefish [Coregonus lavaretus] from Swaderki hatchery

84%
Brzuzan P., Jagodzinski G.
Natural Sciences
|
1998
|
tom 01
8

Growth and survival of brown trout fry [Salmo trutta m. fario L.] in the wild, reared in the hatchery on different feed

67%
Czerniawski R., Pilecka-Rapacz M., Domagala J.
Electronic Journal of Polish Agricultural Universities. Series Fisheries
|
2010
|
tom 13
|
nr 2
9

Wpływ wartości biologicznej jaj na efektywność lęgów piskląt

67%
Gruzewska A.
Acta Scientiarum Polonorum. Oeconomia
|
2008
|
tom 07
|
nr 3
10

Possibilities of using the length differentiation of hatchery sea trout, Salmo trutta m. trutta L., parr to predict numbers of one-year smolts

67%
Debowski P., Dobosz S., Grudniewska J., Kuzminski H.
Archives of Polish Fisheries
|
2010
|
tom 18
|
nr 1
11

Pola elektromagnetyczne w inkubatorach halowych

67%
Janowski T. M., Niedziolka J., Dobrowolska M.
Acta Agraria et Silvestria. Series Zootechnica
|
1996
|
tom 34
9-19
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Efficacy of a novel biofilter in hatchery sanitation: I. Removal of airborne bacteria, dust and endotoxin

67%
Chmielowiec-Korzeniowska A., Tymczyna L., Skorska C., Sitkowska J., Cholewa G., Dutkiewicz J.
Annals of Agricultural and Environmental Medicine
|
2007
|
tom 14
|
nr 1
A novel biofi lter containing organic, bentonite and halloysite media was applied for elimination of microbial pollutants from the air of an industrial hatchery. The concentrations of total mesophilic bacteria, Gram-negative bacteria, thermophilic actinomycetes, dust and bacterial endotoxin were determined in the air of hatchery during 2 months before installation of the biofi lter, and during 6 months after installation of the biofi lter, at the inlet and outlet ducts from each medium. Before installation of the biofi lter, the concentrations of total mesophilic bacteria, Gram-negative bacteria, thermophilic actinomycetes, dust and endotoxin in the air were within the ranges of 0.97- 131.2 × 103 cfu/m3, 0.0-34.4 × 103 cfu/m3, 0.0-0.02 × 103 cfu/m3, 0.37-4.53 mg/m3, and 50.9-520,450.4 ng/m3, respectively. Enterococcus faecalis and Gram-negative bacteria (Acinetobacter spp., Escherichia coli, Enterobacter cloacae, and other species) prevailed among bacterial species recovered from the air of the hatchery. A total of 56 species or genera of bacteria were identifi ed in the air samples taken in the examined hatchery; of these, 11, 11 and 6 species or genera respectively were reported as having allergenic, immunotoxic and/or infectious properties The concentrations of total mesophilic bacteria, Gram-negative bacteria, Enterococcus faecalis and endotoxin found at the inlet duct of the biofi lter after its installation were signifi cantly smaller compared to those recorded before its installation (p<0.05). The concentrations of Gram-negative bacteria, Enterococcus faecalis and dust found at the outlet ducts of biofi lter after its installation were signifi cantly smaller compared to those recorded at the inlet duct of the biofi lter (p<0.01). The concentrations of total meso-philic bacteria were also smaller at the outlet ducts of the biofi lter compared to that at the inlet duct; however, the difference was not signifi cant because of the massive growth of Streptomyces species in the biofi lter’s media which contaminated the outcoming air. In conclusion, the applied biofi lter proved to be effective in the elimination of potentially pathogenic bacteria, dust and endotoxin from the air of the hatchery. The effi cacy of the biofi lter could be improved by the inhibition of the Streptomyces growth in the media of the biofi lter.
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