determination of the degree of bacterial contamination of a sample (as of milk or semen) made by enumeration after a period of incubation of the colonies appearing in a plate that has been inoculated with a suitable dilution of the sample, proovi (nagu piima või sperma) bakteriaalse saastatuse määra mõõtmine loendamise teel pärast kolooniate inkubeerimist plaadil, mis on nakatatud proovi sobiva lahjendusega