Publications by authors named "Kopriva V"

Currently, Slovakia is a rabies-free country, but the epizootiological situation of rabies was not always favorable. The main reservoir species of rabies virus in the first half of the last century was the domestic dog. Since 1906, hundreds of cases were reported, of which approximately 90% were infected dogs.

View Article and Find Full Text PDF

We estimated that more than 11,000 people were exposed to highly pathogenic avian influenza viruses in EU/EEA countries over the outbreak period October 2016-September 2018 by cross-linking data submitted by Member States to European Food Safety Authority and EMPRES-i. A stronger framework for collecting human exposure data is required.

View Article and Find Full Text PDF

Triazines are an important group of herbicides, which have been used extensively or selectively both in agricultural and non-agricultural areas worldwide for more than fifty years to control broadleaf and some grassy weeds. As a consequence of their massive application, they have become and remain significant environmental pollutants, especially in aquatic ecosystems. Fish are an integral part of the aquatic environment and are, therefore, suitable models for the study of the behavioral, biological, and biochemical effects of triazine exposure.

View Article and Find Full Text PDF

Response of pigs to irradiation manifested by production of protein carbonyls and adaptable enzymes was studied in two experiments. In one experiment, 10 mixed-sex pigs were exposed to 0.5 Gy whole body (60)Co irradiation.

View Article and Find Full Text PDF

The aim of this work was to determine antioxidant capacity of beverages containing black, white, and green tea extracts using the photochemiluminescence method, and to monitor its changes based on the storage temperature and time. Samples were stored at two different temperatures (refrigerated at 4°C and laboratory temperature 22°C), analyzed after opening of the original package, and consequently after 4 and 7 days. Results of the antioxidant capacity are expressed as the standard equivalents, that is, ascorbic acid in mmol/L.

View Article and Find Full Text PDF

Background: This study attempts to compare two possibilities of enhancing the colour of egg yolk. One of them is based on the ecological rearing of laying hens on natural green grass whereas the other uses a feeding dose supplemented with natural pigments in laying hens reared in individual cages. Is it possible to distinguish these two technologies using yolk colour determination in the CIELAB system?

Results: Yolk colour parameters such as L*, a*, and b* in the group of grazed hens are significantly different (α = 0.

View Article and Find Full Text PDF

Objectives: The aim of this study is to determine the content of mercury, methylmercury and persistent organic pollutants in the capsules filled with fish oil from marine fish and in the canned cod liver and find out, whether analyse products are safe and suitable for human consumption.

Methods: Total mercury was determined by cold vapour atomic absorption spectroscopy on an AMA-254 (Altec Ltd., Czech Republic) single-purpose mercury analyzer.

View Article and Find Full Text PDF

Objective: To define the average food consumption per capita in the Czech population and to investigate food consumption development during the years of economic transition.

Design: Three studies based on the household budget survey (HBS) were conducted in the 1990s. The primary data originated from so-called diaries of reporting households loaned out from the Czech Statistical Office (CSO).

View Article and Find Full Text PDF