Aim: The aim of this study is to evaluate the milk obtained from the farms with different milking systems by comparing total bacteria and somatic cell count for evaluating milking hygiene, barn hygiene and herd management and estimate the data by examining milk quality characteristics as dry matter, fat, protein and lactose contents.

Materials and Methods: The study material consisted of tank milk (15 hand milking, 15 conventional machine milking, 15 robotic milking) taken from 45 farms breeding Holstein dairy cattle in and around of Balıkesir. A calibrated raw milk analyzer was used to determine fat, protein, lactose, dry matter, fatfree dry matter and somatic cell count. In order to determine the total bacteria count, Plate Count Agar were inoculated with the cast plate method.

Results: Milk quality characteristics as fat (p<0.05), protein (p<0.001), lactose (p<0.01), dry matter (p<0.001) and fat-free dry matter (p<0.001) were determined to be the lowest in hand milking enterprises. The enterprises with the highest ratio of milk protein were robotic milking (p<0.001). Hand milking farms had the highest value for somatic cell count (p<0.05). For total bacterial count machine milking enterprises had the highest value (p<0.001) robotic and hand milking enterprises had lower values and no significant difference was found between them..

Conclusion: It was understood that different milking systems had significant effects on milk quality and hygiene values. In this respect, it is recommended that use of milking robots become widespread, reducing the total labor cost and providing improvements in tank milk quality.