3.2. Physical properties of raw milk
Values, ranges and seasonal variations in physical properties
and various markers of milk stability are given in Table 3. The viscosity
and density displayed some fluctuations but no significant
seasonal variation.
The average casein micelle size was 163 nm, which was slightly
smaller than reported by Glantz et al. (2010).The range was from
132 nm in August to 202 nm in October. However, no significant
seasonal variation was observed. Holt and Muir (1978) reported
that the average size of casein micelles followed a pronounced seasonal
trend with smaller average sizes in summer compared to