Caracterización del ordeño manual e identificación de puntos críticos de control para la calidad higiénica de la leche en una finca del norte de Antioquia
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Date
2010
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Abstract
Introduction. This work characterized manual milking in a farm located in the North of Antioquia, aiming to implement, via a risk analysis, best practices
to manage cattle and obtain milk with hygienic quality. Materials and Methods. A survey was applied
and an observation was made in 10 visits to the farm,
in order to make a flow chart. The critical contamination points in which samples to establish the Colony
Forming Units (CFU) were defined, and so were the
temperature and the time lapse between the beginning and the end of the milking. The samples were
analyzed with Bactoscan®. The statistic analysis
was made by the use of SPSS 15.0, through comparing means. A regression analysis was made in order
to examine the correlation between temperature and
time with CFUs. Results. There was a difference
between two points of the milking (p<0,05). Those
points were the canteen in the milking site and the
canteen in the tank at the end of the milking. There
was a positive association between the time CFUs
and the time necessary for the milk to reach the cold
chain (p<0,05). Temperature in the milking stayed
within the optimal range for mesophiles. The CFU
account in the tank was below the limit stipulated
by the national regulations for the milk bonus in the raw milk system to pay producers. There was no correlation between CFUs and the presence-absence
of rain (p<0,05). Conclusion. This is a clean milk
production system with best hygienic practices. The
principal risky point that must be controlled is the
time between the beginning of the milking and the
moment in which milk is refrigerated in the tank.
Description
Keywords
Ordeño manual, Corporación Universitaria Lasallista, Leche - Producción, Leche - Control de calidad, Higiene de la leche