FIELD: biotechnology. SUBSTANCE: earth worms' cocoons are put into TTC solution of 8-12 g/l concentration and incubated in thermostat at 37-40 C for 55-60 min. Cocoons' viability is evaluated visually by the presence and intensity of their red coloring. The innovation in question enables to reduce duration and increase accuracy for detecting viability of earth worms' cocoons. EFFECT: higher accuracy of detection. 1 tbl
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