Water quality, biofilm production and growth of fringe-lipped carp (Labeo fimbriatus) in tanks provided with two solid substrates
| Autor: | M.C. Nandeesha, K.M. Rajesh, K. M. Shankar, R.M. Mridula, P. Keshavanath, J. K. Manissery |
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| Rok vydání: | 2003 |
| Předmět: |
DNA
Bacterial Quality Control Carps Environmental Engineering Population Dynamics Bioengineering Aquaculture Animal science Nutrient Human fertilization Animals Water Pollutants Fertilizers Carp Waste Management and Disposal Labeo fimbriatus biology Renewable Energy Sustainability and the Environment Environmental engineering Substrate (chemistry) General Medicine Straw biology.organism_classification Manure Enzyme assay Refuse Disposal Saccharum Biofilms biology.protein Plants Edible |
| Zdroj: | Bioresource Technology. 87:263-267 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/s0960-8524(02)00228-6 |
| Popis: | The effects of two substrates, sugarcane bagasse (T(1)) and paddy straw (T(2)) on water quality and growth of Labeo fimbriatus were studied in mud-bottomed, manured cement tanks, in triplicate; a set of three tanks without substrate served as control (T(3)). Addition of manure and substrate brought about a decrease in dissolved oxygen level, but it stabilized after 15 days, when the tanks were stocked with 30 fish each, fed at 3% body weight daily and reared for 90 days. Total ammonia content in substrate based treatments was relatively lower than in the control. Significantly higher nitrite-nitrogen was recorded in the control tanks. The total plate counts (TPC) of bacteria in water did not differ significantly between treatments and control. The overall mean value of TPC with substrate was higher in T(2) than in T(1). The mean phytoplankton density in water was the highest in T(1), followed by T(3) and T(2), whereas zooplankton density was the highest in T(1) followed by T(2) and T(3). The growth of fish was significantly (P |
| Databáze: | OpenAIRE |
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