microbial and chemical changes of raw milk in various stages of production in industrial dairy farms of fars province

with aim for identification of contaminative and critical points of raw milk during production in 9 selected industrial dairy farms, 408 raw milk samples were collected from udders, milking machine, cooling tank and milk transport vehicle at receiving platform in dairy plant. samples were examined for total microbial, coliform ande. coli count and also acidity and ph. total microbial count of sam pies was significantly lower in udders than the later stages (p