COMPOSITION OF RAW MILK FROM CONVENTIONAL AND ORGANIC DAIRY FARMING
2016
Possible differences between composition of raw milk due to dairy farming
system (organic vs conventional) as well as seasonal variations were
investigated. The samples were analysed during one year. A total of 6.782
samples of raw milk were collected (4.496 from organic farming). Dairy farms
were located in the northern part of Republic of Serbia (Province of
Vojvodina). The principle of analysis of raw milk samples was in accordance
with the methodology by midinfrared spectrometry and flow cytometry. The
fixed effect of system of farming and season (winter, spring, summer and
fall) have shown a high statistical significance (P < 0.01) on all examined
milk parameters except fat, total solids and somatic cell count, where the
impact was slightly lower (P < 0.05). Significant difference wasn't found in
number of bacterial colonies (P > 0.05). Composition of milk is also affected
by a number of other factors, therefore it is recommended to involve factors
such as nutrition of dairy cows, breed and farm management. [Projekat
Ministarstva nauke Rpublike Srbije, br. TR 31086]
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