Objective.

To determine the presence of anti-BLV antibodies in samples from bulk tank milk from several Colombian states.

Materials and methods.

Out of 2220 samples arriving to the quality milk laboratory from the University of Antioquia in a fortnight period from the month of may 2016, 329 were randomly selected according to the number of samples per each one of the 7 states participating in the study. These samples were run through ELISA test for anti-BLV antibodies.

Results.

The main result of this random analysis of milk tanks in search of antibodies against BLV was the positivity of the farms in ranks ranging from 57 to 100%; the approach to this bovine health problem in Colombia is possible through the tank milk samples that routinely reach the quality analysis laboratories.

Conclusions.

The infection with BLV is present in Colombia, the establishment of control programs could be done taking advantage of the samples of milk that are sent routinely to the laboratories accredited for payment.

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