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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Influence of oxygen saturation on feed intake and growth of peled whitefish (Coregonus Peled) in intensive farming
 SEICHERSTEIN, Adam
The results of an experimental rearing of peled under different oxygen regimes are presented in this work. Four variants were tested in three repetitions (hypoxia 55-65 %, normoxia 85-95 %, permanent hyperoxia 145-155 % and alternate hyperoxia 145-155 % during the day and 85-95 % overnight). Also the oxygen consumption of fish with weight from 4.5 to 20 g at temperatures of 15, 19 and 23 °C was measured.
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Comparison of species composition and dynamics of zooplankton communities in ponds with extensive management.
 SEICHERSTEIN, Adam
Dynamics and species composition of zooplankton communities were studied in the three experimental ponds (43, 46, and 48) located in VÚRH JU in Vodňany. In all three ponds was carried out extensive rearing of common carp. Zooplankton samples were collected during three growing seasons (2008, 2009, 2010), usually once in each month. Together with zooplankton sampling, water chemical analyzes were also done. Zooplankton diversity and abundance was mainly influenced by the fish stock.
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