STUDY ON THE RAW COW MILK HYGIENIC PARAMETERS FROM DIFFERENT MILK COLLECTION CENTERS AND DIFFERENT YEARS USING A MULTIVARIATE ANALYSIS METHOD

摘要

The present study was performed in order to monitor the hygienic quality of raw cow milk from different milk collection centers of the Suceava County. The raw cow milk samples were collected from three milk collection centers, A, B and C, during four seasons, in two years consecutively, 2009 and 2010. The hygienic quality of cow milk from the point of view of somatic cell counts (SCC) and number of total germs (NTG) of each sample were analyzed. According to the results obtained by factorial analysis of variance (ANOVA) comparing the hygienic quality of the raw cow milk analyzed in 2009 and 2010 years, we concluded that the highest quality was obtained in 2010, in all milk collection centers. Each year had significant effect on SCC (p < 0.01), as well as on NTG (p < 0.01) in bulk milk. Regarding the seasonal influence on hygienic quality of raw cow milk, the higher mean values of NTG and SCC were found in the summer season, while the lowest mean values of them were found in the spring and winter seasons respectively. All these mean values obtained are in accordance with the Regulation 853/2004/CE. In addition, the milk collection centers did not have significant effect on the hygienic quality of raw cow milk, from the point of view of the SCC and NTG mean values.