FIELD: fish-farming.
SUBSTANCE: method comprises adding ammonium chloride at a rate of: on the first day, 1 mg salt per 1 g of expected biomass of hydrocoles; on 2nd-5th days, 5mg/g; on 6th-10th days, 10 mg/g; on 11th-20th days, 20 mg/g; and on 21st day, 40 mg/g. Medium temperature is maintained at 28-30°C until hydrochemical conditions are stabilized and then it is adjusted to hydrocole growing temperature. Temperature is lowered from 28 to 18°C over a period of 24-28 h and below 18°C by a rate of 1°C/day.
EFFECT: speeded up achievement of working conditions of apparatuses for biological purification of piscicultural plants.
3 ex
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Authors
Dates
2007-08-27—Published
2005-11-24—Filed