Použití obohacených nauplií artemie pro odkrm larev ryb

The aim of study was to create review about breeding and use of enriched Artemia salina. Firstly, the historical development of use of Artemia salina was described, as well as its demands on biotop and its morphology. Secondly, the feeding larval stages of fish with different developmental stages of Artemia salina was concerned. Especiallymthe description of bioencapsulation of Artemia salina as well as the description of several commercial bioencapsulational agents were included (Selco, AlgaMac-3050). Some experiments focused on the growth and survival of some fish species which were feeded with Artemia salina were concerned in this study. These fish species were involved: Oncorhynchus mykiss, Sander lucioperca, Acipenser persicus, Huso huso, Tor khudree, Acanthopagrus latus Cromileptes altivelis a Hippocampus abdominalis. The majority of bioencapsulational agents involved in the experiments were supposed to result in increase in the concentration of highly unsaturated fatty acids (HUFA) and in increase in the content of vitamines. The size of Huso huso that was feeded with enriched Artemia salina was a half higher (4,2g ? 0,5g) in comparison with the size of fish species feeded with unmodified Artemia salina (2,8g ? 0,2g). The similar results occured in the case of Oncorhynchus mykiss. The observed group of Oncorhynchus mykiss which was enriched with the mixture 10 % HUFA and vitamin C was of the weight 657,5mg ? 57,9mg and the survival ratio 96 % ? 1 %. The control gained the weight 568,3mg ? 20,7mg and survival ratio 67 % ? 1 %. As a result of this study it is obvious that feeding larval phases of fish with the enriched Artemia salina has a positive effect on their growth and survival