Detección de riesgos de contaminación con microbios ambientales en un sistema de ordeño mecánico de un hato lechero del norte de Antioquia
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introducction. To Characterize the way milk is produced in a farm and study the factors that affect its
quality. Objectives. know, identify and characterize
the critical points in which microbial contamination
can take place in a mechanic milking system located
in the North of Antioquia. Materials and methods.
Departing from a repetitive observation to the milking routine a flowchart was made, identifying three
moments of the routine: The pre-milking, the milking
and the post-milking. By this observation it was determined that the most possible places for contamination were the routine of washing or the contact
with the milker´s gloves. Samples were taken and
cultivated in 3M Petrifilm™ and Bactoscan® plates
for the milk samples and for the water samples the
plate count for mesophiles was used. Result. The results showed that a cleaning and disinfection routine
for the milking Machine is correct, but cleaning and
disinfection of the nipples must be improved because they contaminate the milking cup and this, consequently, contaminate the measurers. Finally, the
bacteria will fall into the cold tank. Discussion. CFU
in tank, at this farm, have a media of 218.40
b
± 74,00,
it means they are above the bonus ranks according
to the 000012 resolution of January 12
th
, 2007.
Description
Keywords
Producción de leche, Corporación Universitaria Lasallista, Leche - Control de calidad, Leche - Equipos y accesorios