20.500.12556/DKUM-85041 Vrednotenje »tank by pond« sistema vzreje rib diplomsko delo Evaluation of the "tank by pond" system for fish farming Ribogojstvo je pomembna živinorejska panoga, ki vzreja ribe za vlaganje v ribolovne vode in zagotavlja vir kakovostnih beljakovin za prehrano ljudi. Za razvoj ribogojstva, ki je že desetletja v porastu, pa so okolijske omejitve, zato je treba iskati in uvajati nove tehnologije. V raziskavi smo spremljali sistem super intenzivne vzreje rib imenovane »tank by pond«. V poizkus smo vključili krapa (Cyprinus carpio) iz družine krapovcev (Cyprinidae) in belugo (Hucho hucho) iz družine jesetrov (Acipensaridae) ter štiri mesece spremljali njuno rast in zdravstveno stanje. V ta namen smo ribe mesečno tehtali in organoleptično ugotavljali morebitne spremembe značilne za bolezenska stanja. Pri krapih smo priraste v vzreji »tank by pond« primerjali z rezultati prirastov krapov v tradicionalni vzreji v polikulturi in ugotovili, da je znašal donos krapov po 4-mesečnem spremljanju 793,5 kg, to pomeni, da bi na hektarski površini iste globine znašal donos 57 041,5 kg v štirih mesecih, kar je bistveno več kot v tradicionalni intenzivni vzreji, kjer je prirast skozi vso vzrejno sezono med 15 do 100 ton. Med raziskavo tudi nismo ugotovili poškodb ali drugih znakov, ki bi kazali na bolezenska stanja, zato sklepamo, da so bile ribe klinično zdrave, kar potrjuje tudi odstotek poginulih rib, ki je pri krapih znašal 0,3 %, v bazenih z belugami pa ni poginila nobena riba. Rezultati spremljanja rasti rib v sistemu »tank by pond« so vzpodbudni, saj kažejo, da je v omejenem nadzorovanem okolju mogoče vzrediti velike količine rib, ki predstavljajo kakovostne beljakovine za prehrano ljudi ob boljšem izkoristku krme, manjši uporabi delovne sile in nenazadnje bistveno boljši dobrobiti rib. Aquaculture is an important industry that raises fish for repopulation of fisheries waters and is a source of high-quality protein for human consumption. However, there are ecological limits to the development of aquaculture, which has been increasing for decades, and new technologies must be sought and introduced. In this study, a system of high-intensity fish farming called "tank by pond" was evaluated. Carp (Cyprinus carpio) from the carp family (Cyprinidae) and beluga (Hucho hucho) from the sturgeon family (Acipensaridae) were included in the study and their growth and health were monitored for four months. For this purpose, the fish were weighed monthly and organoleptically examined for changes characteristic of the diseases. In the case of carp, the results of the “tank by pond” farming system were compared with the results of carp production in traditional polyculture farming. It was found that the carp yield after four months of observation was 793,5 kg, which would mean 57,041.5 kg in four months on one hectare of the same depth, significantly more than in traditional intensive farming, where production per ha reaches between 15 and 100 tonnes throughout the breeding season. During the study, no injuries or other signs indicating diseases were found, so it was concluded that the fish were clinically healthy, which is also confirmed by the percentage of dead fish, which was 0.3% in the carp, while in the tanks with belugas not a single fish died. The results of monitoring fish growth in the "tank by pond" system are encouraging, as they show that in a controlled environment it is possible to grow large numbers of fish that provide high quality protein for human consumption, with better feed conversion, less labour, and ultimately much healthier fish. super intenzivna vzreja rib tank by pond krapi jesetri super intensive fish farming »tank by pond« carp sturgeon true true false U. Kukolj Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-08-16 21:34:32 2023-10-11 14:24:27 2023-10-12 03:07:10 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (VIII, 49 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 639.3.04(043.2) 167982851 VS_Kukolj_Uros_2023.pdf VS_Kukolj_Uros_2023.pdf 1 4BBADF5ADB019C8937CFF0BB132F7E78 1ee51b1f7d89995afd1b868b40b391e0daa9edd2cfd09194b5ed3d35d2699c0d a48c2ea3-4744-11ee-a526-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=170890 Fakulteta za kmetijstvo in biosistemske vede 0 0 0