EXECUTION AND VALUE OF THE BMR (BRABANT MASTITIS REACTION) WITH AN ORGANIZED MASTITIS CONTROL,
Abstract
The viscosity of milk was determined by means of a very simple apparatus. This apparatus consisted of a funnel that debouches into a capillary of a definite length and diameter (BMR funnel). The investigation proceeded as follows: A mixture of 0.6 ml milk and 0.4 ml 3% Na-lauryl sulfate was poured into the funnel while the capillary at the bottom of the apparatus remained closed. The capillary was then opened for 5 seconds. The milk samples that flowed out in the meantime were given a negative BMR. The milk samples which had not yet flowed out of the funnel via the capillary were noted on a list with one point (.). Afterwards, the capillary was opened again for 5 seconds, after which the same administrative processing of the result took place. Finally, this is repeated after 10 seconds and then after 40 seconds. Thus the sample which was not yet out of the funnel after 60 seconds got four points (....). BMR was performed for a number of milk samples and the number of cells per ml milk determined. The number of cells was counted by means of a modified Prescott and Breed method. It is concluded that by means of the BMR, a large number of milk samples can be examined for the presence of mastitis in a short time by a reliable, simple and cheap method. The BMR may possibly also be found useful in determining the quality of the milk in connection with payment. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 06, 1966
- Accession Number
- AD0834650
Entities
People
- F. H. J. Jaartsveld
Organizations
- United States Army Biological Warfare Laboratories