Testing the Association between Cattle Productions and Stocks from the County of Vâlcea Reared in Conventional ad Organic Systems, with those Reported in Romania and EU during 2001 – 2006. Note I. Cattle Reared in Conventional System

Adrian Pintea, Emilian Merce

Abstract


The aim of this study was to estimate the variability of cattle effectives and dairy production from the county of
Vâlcea during a six year period, 2001 – 2006, and quantify possible association of this variability with the variability of
the cattle effectives and dairy production in Romania and European Union, in conventional rearing system. A test of
variable distribution was performed in order to establish the statistical approach needed for estimate correlation, and
both parametric and not parametric solutions were found. The variability of the cattle effectives reared in conventional
system in the county of Vâlcea during 2001 – 2006 is positive and moderate correlated with the evolution of Romanian
cattle effective. The evolution of these effectives are negatively correlated with the evolution of the same variable
reported in EU, in the same period. The cattle dairy production obtained during 2001 – 2006 in the county of Vâlcea
was moderate correlated with productions from Romania and EU.

Keywords


pairs of variables, association, trend, cattle dairy production, cattle effectives

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