Open Access

Table 2.

Changes in the toxic properties of cow excrement during the experiment.

Experim ents variant Toxicity, (Kp10)*
Initial After processing in LVBU
P. caudatum C. affinis P. caudatum C. affinis
Cow excrement from a private farm
No.1 40 215 25 62
No.2 25 39
*

Kp 10 is a reciprocal dilution of aqueous extract from the substrate, which eliminates its harmful effects on hydrobionts.

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