SOMATIC CELL COUNTS AND TOTAL BACTERIAL COUNT IN BULK TANK MILK OF SMALL RUMINANTS

Total bacterial count (TBC) is a good tool for monitoring the hygienic environment of small ruminants. TBC is significantly correlated with the number of somatic cells in bulk milk (BMSCC). Programs to improve the hygienic quality of bulk milk are more effective if you take into account bothvariables (TBC and BMSCC). A significant impacton BTSCC in ewe bulk milk was found for the following factors: herd/flock, sampling month, dry therapy practice, breed of sheep, and type of milking. Factors associated with the mean standard plate count (SPC) included the month of bulk milk sampling and the number of rnilkings contained in bulk tank milk, as well as the adopted milking technique. In fresh sheep chesses the casein fractions (alpha s1-1-CN and beta-CNs) were significantly lower, when BTSCC was high. These cheeses have lower fat contents and as a result an increased pH and fat acidity. Yoghurts made from milk with a high BTSCC were characterized by a higher protein content and the highest level of syneresis. To improve the udder health status of small ruminants it is necessary to ensure hygienic conditions of animal maintenance and optimization of milking machine standards and parlor systems.