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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
The use of artificial and semi-artificial spawning in the present breeding of common carp
 MARKOVÁ, Aneta
This thesis is focused on the use of artificial and semi-artificial spawning substrates in the current breeding of common carp (Cyprinus carpio, L.) a literature review of this species was processed in relation to reproduction, as well as of the spawning methods (natural, semi-artificial, artificial). Results are drawn from the experimental part (2 spawns: a semi-artificial spawn in the institution for experiments at the Fishery School in Vodňany and an artificial spawn in the fish hatchery at the Research Institute of Fish Culture and Hydrobiology in Vodňany). In both spawns, hormonal stimulation of brood stock was carried out. In the artificial spawning the amount of obtained sex products of individual breeds was assessed. At the same time, a questionnaire survey was conducted at 11 fish-breeding companies engaged in their own production of yolk sac fry. The responses obtained from the survey and findings from the experimental part of spawnings were compared with bibliographic sources which the following conclusions were reached from. It was confirmed that at present a massive carp fingerling production from artificial spawn ensuring optimized conditions dominates over the Dubravius method of semi-artificial spawning which is used only rarely. The production of mirror carp is currently higher than the production of scaly carp. Among the bred mirror breeds the Hungarian mirror carp (M2) prevails, nonetheless it depends on the individual fishery company which form of carp they choose to satisfy the market demand.
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Přikrmování kapřího plůdku při použití některých méně hodnotných krmiv
 Jirásek, Jiří
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Růst, vývoj a výživa kapřího plůdku v prvém roce života
 Hochman, Ladislav
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Growth and conditon monitoring of carp fingerling (Cyprinus carpio)
 MAREK, Tomáš
The literature review of this work are given feed used in aquaculture ponds for carp fingerling and comparison of their chemical composition. Then there is the focus on feeding experiments with fingerling in cages in Trebon, which were conducted during the summer. In the results are the values of growth and condition indicator, which are presented during the monitoring and at the end of the experiment. This work includes evaluation of the success of the test feed and propose of their possible uses in breeding carp fingerling in fishing practice.
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