20.500.12556/RUL-184907 Uporaba probiotikov in prebiotikov kot krmnih dodatkov za sladkovodne ribe in rake diplomsko delo Use of probiotics and prebiotics as feed additives for freshwater fish and crustaceans B. Sc. thesis Diplomsko delo obravnava vlogo probiotikov in prebiotikov kot prehranskih dodatkov v akvakulturi ter njihov vpliv na rast, zdravje in odpornost sladkovodnih rib in rakov. Namen naloge je bil na podlagi pregleda znanstvene literature oceniti učinkovitost teh dodatkov in opredeliti njihove mehanizme delovanja ter možnosti uporabe v praksi. Uporabljena je bila metoda pregleda strokovnih in znanstvenih virov. Ugotovljeno je bilo, da probiotiki, zlasti predstavniki rodov Bacillus, Lactobacillus in Enterococcus ter kvasovke Saccharomyces, izboljšujejo rast, izkoristek krme in imunski odziv ter zmanjšujejo pojavnost bolezni pri sladkovodnih organizmih. V posameznih raziskavah se je bistveno zmanjšala smrtnost, hkrati pa so bili izboljšani tudi hematološki in rastni parametri. Prebiotiki, kot sta inulin in fruktooligosaharidi, pozitivno vplivajo na sestavo črevesne mikrobiote, kar se odraža v boljši rasti, večji odpornosti in izboljšani antioksidativni sposobnosti. Obe skupini prehranskih dodatkov prispevata tudi k izboljšanju kakovosti vode in večji toleranci na stres. Na podlagi zbranih ugotovitev zaključujemo, da predstavljajo probiotiki in prebiotiki pomemben dejavnik trajnostne akvakulture ter učinkovito alternativo uporabi antibiotikov. The thesis deals with the role of probiotics and prebiotics as nutritional supplements in freshwater fish and crustaceans aquaculture and their impact on growth, health and survival of organisms. The purpose of the thesis was to assess the effectiveness of these supplements based on a review of scientific literature and to define their mechanisms of action and possible applications in practice. The method of reviewing professional and scientific sources was used. It was found that probiotics, especially representatives of the genera Bacillus, Lactobacillus and Enterococcus and the yeast Saccharomyces, improve growth, feed utilization, immune response and reduce the incidence of diseases in freshwater organisms. In individual studies, mortality decreased, while hematological and growth parameters were also improved. Prebiotics such as inulin and fructooligosaccharides have a positive effect on the composition of the intestinal microbiota, which is reflected in better growth, greater clarity and improved antioxidant capacity. Both groups of dietary supplements also contribute to improving water quality and greater stress tolerance. Based on the collected findings, we conclude that probiotics and prebiotics represent an important factor in sustainable aquaculture and an effective alternative to the use of antibiotics. akvakultura sladkovodne ribe sladkovodni raki prehrana živali krmni dodatki probiotiki prebiotiki diplomska dela aquaculture freshwater fish freshwater crustaceans animal nutrition feed aditives probiotics prebiotics true false false D. Herman Kavčič Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-07-17 07:16:06 2026-07-17 07:16:16 2026-07-18 04:18:59 0000-00-00 00:00:00 2026 0 Ljubljana 2026 Ljubljana 1 spletni vir (1 datoteka PDF (VII, [19] str.)) 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 597.2/.5:595.3(043.2) 282166 285264387 59228.pdf 59228.pdf 1 8FC971FA61BD01D886FA8E8252539F97 bc5d59f3c69d9c8bf31042a49998053885923718b5237f721a1c0d6d31b6928d 72cce4dd-819e-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=240303 Biotehniška fakulteta 0 0 0