HYGIENIC-SANITARY QUALITY OF RAW MILK IN THREE REGIONS OF THE STATE OF MINAS GERAIS - BRAZIL
DOI:
https://doi.org/10.5935/2238-6416.20120051Keywords:
hygienic-sanitary quality, law, raw milk, somatic cell count, total bacterial count.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.
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