Affiliation:
1. Animal Husbandry Research Division, USDA, Beltsville, Maryland
Abstract
Criteria have been developed for the design of eyepiece reticles to be employed in the Direct Microscopic Somatic Cell Count method. For each of several levels of somatic cell concentration in milk at which regulatory (control might be exercised, we show the range of widths of the milk film strips required to maintain the desired precision of cell count. These widths are related to the actual distances between rulings on the eyepiece reticle for commonly used microscopes. The proper line spacing is determined for reticles to be used at each of certain cell count control levels, and the limitations on compatible microscope optical equipment are specified.
Publisher
International Association for Food Protection
Cited by
8 articles.
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