Can the Liquid Live Micro-Organisms System, a Commercial Probiotic, Affect Sediment, Water Quality, and Koi Carp Production in Fish Hatchery Ponds?

Autor: J. Warren Schlechte, John M. Paret, Dale D. Lyon, Aaron Barkoh
Rok vydání: 2010
Předmět:
Zdroj: North American Journal of Aquaculture. 72:50-56
ISSN: 1548-8454
1522-2055
DOI: 10.1577/a08-060.1
Popis: Sediment and turbidity can reduce pond and effluent water quality and fish production. We investigated the efficacy of a commercial bacterial product, Liquid Live Micro-Organisms (LLMO) System, in reducing sediment accumulation and improving water quality and fish production in hatchery ponds for 4.5 months. Four plastic-lined ponds received LLMO treatment at a rate of 1 L per 63,230 L of pond water at 2-week intervals throughout the study and additional twice-weekly applications during the last 6 weeks of the study. Another four ponds were untreated and served as the control. All ponds were cleaned of bottom sediments, supplied with plastic containers (33–34 containers/ha) to collect sediment samples, filled with water, and managed to control Prymnesium parvum ichthyotoxicity. Koi (a variant of the common carp Cyprinus carpio) were stocked into ponds as fry and were fed a commercial diet. Turbidity, Secchi disk visibility, chlorophyll a, pH, ammonia-nitrogen, suspended solids, carbonaceous bioch...
Databáze: OpenAIRE
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