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183.
Marek Matras Magdalena Stachnik Ewa Borzym Joanna Maj‐Paluch Michal Reichert 《Journal of fish diseases》2019,42(7):959-964
During a PCR‐based CEV survey in Poland in 2015–2017, the virus was detected in many farms both in clinical and asymptomatic cases and in common as well as in koi carp (Cyprinus carpio). In order to evaluate the potential carrier role of fish species that share the same habitats with carp, an experimental trial was performed. Investigations carried out on specimens of bleak (Alburnus alburnus), crucian carp (Carassius carassius), European perch (Perca fluviatilis), Prussian carp (Carassius gibelio), roach (Rutilus rutilus) and tench (Tinca tinca) cohabited with CEV‐infected carp yielded positive results. These species of fish were experimentally cohabited with CEV‐infected common carp at a temperature of 16°C ± 1. Material from the brain, gills, spleen, kidneys, intestine and skin was investigated for the presence of CEV DNA. Similar investigations were performed with uninfected fish designated controls. Samples were tested for CEV by qPCR. 相似文献
184.
Magdalena Mititelu Elena Moroan Anca Cecilia Nicoar Ana Andreea Secreanu Adina Magdalena Musuc Irina Atkinson Jeanina Pandele Cusu George Mihai Niulescu Emma Adriana Ozon Iulian Sarbu Teodora Dalila Balaci 《Marine drugs》2022,20(1)
Nowadays, the use of marine by-products as precursor materials has gained great interest in the extraction and production of chemical compounds with suitable properties and possible pharmaceutical applications. The present paper presents the development of a new immediate release tablet containing calcium lactate obtained from Black Sea mussel shells. Compared with other calcium salts, calcium lactate has good solubility and bioavailability. In the pharmaceutical preparations, calcium lactate was extensively utilized as a calcium source for preventing and treating calcium deficiencies. The physical and chemical characteristics of synthesized calcium lactate were evaluated using Fourier Transform Infrared Spectroscopy, X-ray diffraction analysis and thermal analysis. Further, the various pharmacotechnical properties of the calcium lactate obtained from mussel shells were determined in comparison with an industrial used direct compressible Calcium lactate DC (PURACAL®). The obtained results suggest that mussel shell by-products are suitable for the development of chemical compounds with potential applications in the pharmaceutical domain. 相似文献
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186.
Krzysztof Rakus Mikoaj Adamek Miriam Mojesz Piotr Podlasz Magorzata Chmielewska‐Krzesiska Karolina Naumowicz Natalia Kasica‐Jarosz Katarzyna Kak Sebastian Rakers Keith Way Dieter Steinhagen Magdalena Chadziska 《Journal of fish diseases》2019,42(6):923-934
Zebrafish (Danio rerio) is a laboratory model organism used in different areas of biological research including studies of immune response and host–pathogen interactions. Thanks to many biological tools available, zebrafish becomes also an important model in aquaculture research since several fish viral infection models have been developed for zebrafish. Here, we have evaluated the possible use of zebrafish to study infections with fish viruses that have not yet been tested on this model organism. In vitro studies demonstrated that chum salmon reovirus (CSV; aquareovirus A) and two alloherpesviruses cyprinid herpesvirus 1 (CyHV‐1) and cyprinid herpesvirus 3 (CyHV‐3) are able to replicate in zebrafish cell lines ZF4 and SJD.1. Moreover, CSV induced a clear cytopathic effect and up‐regulated the expression of antiviral genes vig‐1 and mxa in both cell lines. In vivo studies demonstrated that both CSV and CyHV‐3 induce up‐regulation of vig‐1 and mxa expression in kidney and spleen of adult zebrafish after infection by i.p. injection but not in larvae after infection by immersion. CyHV‐3 is eliminated quickly from fish; therefore, virus clearing process could be evaluated, and in CSV‐infected fish, a prolonged confrontation of the host with the pathogen could be studied. 相似文献
187.
Anna Maria Go
dziejewska Andrzej Robert Skrzypczak Jacek Koszaka Magdalena Bowszys 《Fisheries Management and Ecology》2020,27(3):279-291
The use of artificial water bodies for angling is a popular practice, especially in industrial and urbanised areas where natural water bodies are lost. In this study, the zooplankton structure dynamics and water quality at three strip mine drainage system reservoirs were assessed with different types of recreational fishery exploitation: K1—intensive angling using the catch‐and‐release model, K2—lowest angling pressure and higher share of predatory fishes and K3—moderate fishing, that is limiting groundbait quantities and eliminating non‐predatory fishes by anglers. The null hypothesis tested was that recreational fishing does not affect the biotic and abiotic conditions of reservoirs. The significance of each environmental variable was tested using redundancy analysis (RDA). The highest nutrients and chlorophyll a concentration, turbidity level and organic matter content occurred in K1. Zooplankton diversity was the lowest under these conditions; protozoa and larval stages of copepods dominated. In reservoirs where sustainable fishing was implemented (K2, K3), trophic parameters of water were lower, on average, by 25%, turbidity by 30%, and productivity by 35–70%. Zooplankton diversity was significantly higher; rotifers and small cladocerans dominated. The choice of recreational fishing model determines the functionality and biological potential of the reservoir. 相似文献
188.
Palitha Weerakkody Jenny Jobling María Magdalena Vergara Infante Gordon Rogers 《Scientia Horticulturae》2010
Consumer interest in pomegranate fruit (Punica granatum L.) is increasing in Australia as a result of its unique external and internal qualities. This work looked at the effect of applying sunscreen treatments to pomegranate fruit on the degree of sunburn damage and the effect of maturity and sunburn on the internal antioxidant concentration of the juice. The pomegranates, cultivar ‘Wonderful’ were grown in Condobolin, New South Wales, Australia. 相似文献
189.
Norway spruce [Picea abies (L.) Karst.] heartwood and sapwood have differing wood properties, but are similar in appearance. An investigation was made
to see whether near-infrared spectroscopy (NIRS) could be used with multivariate statistics for separation between heartwood
and sapwood in dry state on tangential longitudinal surfaces. For classification of wood into sapwood and heartwood, partial
least square (PLS) regression was used. Orthogonal signal correction (OSC) filtering was used on the spectra. This study shows
that a separation of sapwood and heartwood of spruce is possible with NIR spectra measured in a laboratory environment. The
visible-wavelength spectra have significant influence on the predictive power of separation models between sapwood and heartwood
of spruce. All 44 specimens in the calibration set were correctly classified into heartwood and sapwood. Validation of the
model was done with a prediction set of 16 specimens, of which one was classified incorrectly. 相似文献
190.
Jan Holeksa Milan Saniga Jerzy Szwagrzyk Magdalena Czerniak Katarzyna Staszyńska Paweł Kapusta 《Forest Ecology and Management》2009
In Europe, remnants of formerly widespread natural mixed forests are rare. We analyzed an exceptionally tall tree stand with a very high wood volume in Hron?okovský grúň reserve, covering 55.2 ha in Slovenské Rudohorie Mountains in central Slovakia (48°43′N and 19°35′E) between 730 and 1050 m a.s.l. We compared our data to other natural stands to see if the growing stock and tree height were higher in Hron?okovský grúň. 相似文献