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The study was carried out in the winter of 1999/2000 at the fishing base of the Olsztyn Fishing Farm. The base was comprised of 48 fish cages (15 m³ each) suspended in a post-cooling water canal of the Ostrołęka thermal-electric power station. During the 190 days of observations (31 October 1999 - 15 May 2000), the following factors were analysed: bacteriological contamination of skin, muscle and...
The feeding experiment described was run within July 19 October 18, 1999 on 536 g (ą20 g) mean individual weight carp individuals aged 1+. The fish were kept in cages stocked at a 50 ind. cage1 density. Experimental treatments differed in the feed offered. The following feeds were used: Danex 1848 (Dan), Carp Growex (Grow), and AT 35 Starter (AT 35). The daily feed doses, amounting to 2.0% metabolic...
The Safir trout feed (Aller Aqua) was offered to carp (Cyprinus carpio) fry of 21 + 5 g/ind. initial weight, stocked at a density of 300 ind./m3 in cages placed in cooling water. Identical rations (5 4.0% metabolic weight) were offered for 6, 12, and 18 h per day. The data obtained showed the best results (as indicated by SGR and FCR) of culturing carp of up to about 75 g individual weight were...
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