QUALITY OF RAW MILK OBTAINED FROM BROWN BREED EXPLOITED IN VRANCEA COUNTY

P. Avram, C.E. Nistor, B.V. Avarvarei, A., Usturoi, I. Gîlcă

Abstract
   Having in view that, Brown breed have an important rate in cattle breed structure from Vrancea County, we consider that it is opportune to carry out a study concerning the seasonal variation of qualitative features of raw milk obtained from this breed, due to specific technologies and technological factors management applied in the area.
   The results of this research aim to complete the information regarding quality of raw milk gathered from Brown breed cattle which are registered in Vrancea County Official Control of productive performances. Research was carried out to determine the raw milk quality by specific physical-chemical and microbiological analysis, for parameters such as: somatic cell count, dry matter, fat, protein, lactose and casein content, urea, density and pH.
   The mean values and variability estimators for somatic cell count ranged between 242600 (winter) and 573200 (summer), dry matter oscillated between 11.84% and 13.42%, the fat percentage varied between 3.28% (spring) and 4.34% (winter), protein percentage recorded mean values between 3.21% and 3.96% in autumn, respectively in winter; lactose content was between 3.78% and 4.87%, casein content ranged between 27.46 g/l and 29.29 g/l.