HYGIENIC-SANITARY QUALITY OF RAW MILK IN THREE REGIONS OF THE STATE OF MINAS GERAIS - BRAZIL

Abstract

The aim of this work was to diagnose the situation of the quality of the refrigerated raw milk of tanks of suppliers of an Usina Beneficiamento Lavras - MG, and fitness for IN- 51. We used the results of refrigerated raw milk samples analyzed in the Laboratory (Clinical Milk) Piracicaba-SP from the Jan./2006 Dez./2010. The samples were collected once a month randomly and sent to laboratory in cool boxes containing ice packs within 48 hours. The geometric means for SCC found were 506,000, 485,000, 440,000, 387,000 and 449,000 cells / mL. In the 1st period of IN-51, 75% of producers with a range of CCS were above 315,000 cells / mL and 25% were above 816,000 cells / mL. In the 2nd period 75% of producers with a range of CCS were above 251,000 cells / mL and 25% were above 717,000 cells / mL. The geometric means for CBT were found to 286,000, 345,000, 481,000, 214,000 and 179,000 CFU / mL. In the 1st period of IN-51, 75% of producers were with CBT values above 170,000 CFU / mL and 25% were above 1,253,000 CFU / mL. In the 2nd period 75% of producers were with CBT values above 136,000 CFU / mL and 25% were above 842,000 CFU / mL. During the period studied the geometric means of SCC and TBC met the requirements of NI-51. According to the results of the quartiles is a decreasing trend in milk SCC and TBC over the study period.