Contagem bacteriana total e contagem de células somáticas em algumas bacias leiteiras de Minas Gerais e Goiás de 2003 a 2006

Abstract

The present study had as objective the observation and understanding of the changes that occurred in the milk sanitary quality, concerning the total bacterial count (TBC) and the somatic cells count (SCC) with the publication of Instrução Normativa 51 and milk quality payment of the raw milk collected by a Dairy Industry of Minas Gerais and Goiânia. It was analyzed 303.070 data (average of 7.365 dairy producers) in 32 dairy cooperatives, in the period of January 2003 to December 2006. It was also made a questionnaire addressed to these producers that after distributed and answered, was analyzed about the predominant breed in the dairy farms of various regions of Minas Gerais and Goiânia. From a total of 277.895 data from the dairy cooperatives of Minas Gerais, it was found an average of 355.362 CFU/mL for TBC and 364.446 cells/mL for SCC. In Goiânia, it was observed in a total of 25.175 data, an average of 280.249 CFU/mL for TBC and 296.559 cells/mL for SCC. After the creation of IN51 and the beginning of quality payment in July 2005, it could be observed a reduction in the values of TBC, however the SCC remained unaltered. Concerning the milk quality payment categories, made by dairy industry for SCC and TBC, the present study showed that few dairy producers reach the maximum payment category, with only 53,64% reaching the demands for SCC (≤ 400.000 cells/mL) and 28,08% reaching the demands for TCB (≤ 100.000 CFU/mL).