Considering that the production of milk in the State of Goiás has undergone changes in the productive chain that reflect directly in the national scenario, studies are needed to obtain information on the quality of milk produced in this region. The present work was carried out in partnership with the cooperative receiving the milk production of the rural properties studied. The objective of this study was to evaluate the incidence of somatic cell count (CCS), total bacterial count (CBT) and the physicochemical composition of dairy herds in the southern region of the state of Goiás. The data of CCS, CBT and physicochemical analyzes were tabulated, from of period of August of 2015 to July of 2016. The samples were collected monthly in the cooling pond of the farms and sent to a laboratory accredited by the Brazilian Quality Milk Network (RBQL). High values were found in the CCS, however, remaining within the limits allowed by Normative Instruction 62. For CBT were found alarming results, as they were indexed beyond what is allowed by the regulation. Regarding the physical-chemical composition variables, this study were used 136 Colloquium Agrariae, vol. 13, n. Especial 2, Jan–Jun, 2017, p. 135-141. ISSN: 1809-8215. DOI: 10.5747/ca.2017.v13.nesp2.000219 lactose, fat and total protein. Comparing the results obtained during the experimental period with those of Normative Instruction 62, were observed that the total protein and fat contents are within the established standard.