The prevalence of tick-borne encephalitis in the region of West Bohemia (Czech Republic) between 1960-2005.

Between 1960-2005, 1,621 cases of tick-borne encephalitis were confirmed by laboratory testing in the region of West Bohemia (now the regions of Pilsen and Karlovy Vary) which represents a rate of infection of 4.1 per 100,000 inhabitants per year. The highest infection rate was established in men aged 20-24 and women aged 45-54.

Evaluation of acid-base disorders in dairy cows using principal component analysis and empiric equations.

Acid-base disorders were studied in two groups of dairy cows. According to conventional interpretation in the 1st group of dairy cows (n = 10) the results of the acid-base parameters indicated respiratory alkalosis and in the 2nd group (n = 10) metabolic acidosis. The data of the two groups were examined using principal component analysis.

[Functional liver disorder in relation to decreased titratable acidity of milk].

The internal environment of 17 dairy cows was observed by help of 23 variables of metabolic profile in blood and milk at lowered titratable acidity of milk (Tab. I) Average values of the observed variables were compared with reference values in a histogramme (Fig. 1).

[Use of the computer in the study of relations of indicators in the metabolic profiles of dairy cows].

Fifty dairy cows with metabolic alkalosis and forty-eight dairy cows of a control group were subjected to a metabolic profile test with 30 parameters. The results of analyses were confronted with reference values in histograms. We calculated mutual correlation coefficients for all parameters of dairy cows of the two groups.