For the dairy sector, controlling the health of cattle herds is an issue for both livestock farmers, other players in the sector and society. Among the health disorders, mastitis (inflammation and bacterial infection of the mastella) is the first disease in France in dairy farming, in number and in cost for these farms. Individual Cell Counting (ICC) is a direct assessment of the cow’s immune response to an infectious agent of the mammary gland. It allows the quantitative identification of healthy and infected cows at the breast level and an estimate of the proportion of these cows in the cell tank. The objective of the GenoCellules project is to develop a new method of KIC numeration that would increase the frequency of testing and thus earlier detect new infected cows and treat or reform them more quickly. The GenoCellules project is supported by Clasel, a livestock consulting firm, and the Agranis laboratory. Under the ERDF operation, only the investment expenditure incurred by the Agranis laboratory was retained.