The survival of Staphylococcus epidermidis in raw milk with different somatic cell count

The antibacterial activity of an individual quarter milk sample cannot be evaluated by the number of somatic cells in milk and number of S. epidermidis cells surviving (-0,509, the most bactericidal. This was shown to be due to the fact that the strain of Staphylococcus epidermidis Se 25 is very sensitive to complement and also sensitive to cell free skimmed milk. A second stimulation of the udder enhances significantly the cell response to the stimulant. A negative and highly significant correlation coefficient exists between the number of somatic cells in milk and number of S. epidermidis cells surviving (0.509, P less than or equal to 0.01).