Biotechnology in Animal Husbandry 2016 Volume 32, Issue 2, Pages: 133-143
https://doi.org/10.2298/BAH1602133K
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Composition of raw milk from conventional and organic dairy farming
Kučević Denis (Faculty of Agriculture, Department of Animal Science, Novi Sad)
Trivunović Snežana (Faculty of Agriculture, Department of Animal Science, Novi Sad)
Bogdanović Vladan
(Faculty of Agriculture, Department of Zootechniques, Belgrade)
Čobanović Ksenija (Faculty of Agriculture, Department of Animal Science, Novi Sad)
Janković Dobrila
(Faculty of Agriculture, Department of Animal Science, Novi Sad)
Stanojević Dragan
(Faculty of Agriculture, Department of Zootechniques, Belgrade)
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.
Keywords: milk composition, organic milk, conventional milk, dairy farming, Holstein-Friesian dairy cows
Projekat
Ministarstva nauke Rpublike Srbije, br. TR 31086