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The impact of changes in the system of milk payment and season on hygienic quality of milk in Bosnia and Herzegovina

The main indicators of hygienic quality of milk are the total bacterial count and the somatic cell count. The objective of this paper was to investigate the changes in the hygienic quality of milk due to implementation of the new system of milk payment in Bosnia and Herzegovina in the period of 2010-2013 as well as to determine the impact of season on hygienic quality of milk. The bulk milk samples were collected from milk producers from the whole area of Bosnia and Herzegovina who submit its milk to dairy industry. It was collected 53 363 milk samples which were analysed for the somatic cell count (SCC) and 52 999 milk samples for the total bacterial count(TBC). The results of research showed that the proportion of redeemed milk with the number of somatic cells lesser than 300 000/mL was significantly increased, as well as the proportion of milk producers who produce milk of EU quality (P<0.05). The season had a significant effect (P<0.05) on the SCC. Thus, in spring (April) the proportion of milk with the number of SC < 300 000/mL was significantly the highest (P<0.05) while the proportion of such milk in the autumn period was significantly lower (P<0.05). Significant linear increase (P<0.05) of the proportion of redeemed milk with the TBC < 200 000/mL was perceived. The change in the system of milk payment in Bosnia and Herzegovina resulted with significantly (P<0.05) increased proportion of producers who submit that’s kind of milk. Significantly lower proportion of milk in summer period with TBC < 200 000/mL was determined. It can be concluded that consistent appliance of existing regulations which determine the quality of milk, based on EU standards, leads to the improvement of hygienic quality of redeemed milk, as illustrated by the case of Bosnia and Herzegovina.

Milk; Payment system; Somatic cell count; Total bacterial count; Season

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