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SHELTERFISH New tools to improve fish health and environment in organic aquaculture Organic Eprints
Jokumsen, Alfred; Gesto, Manuel; Buchmann, Kurt; Lorenzen, Niels; Pedersen, Lars-Flemming; Henriksen, Niels Henrik; Schmidt, Jacob; Madsen, Lone; Kania, Per; Pedersen, Per Bovbjerg.
Rainbow trout farming and in particular organic rainbow trout farms are critically challenged by the relatively high prevalence of skin/gill infections caused by various pathogens, especially the parasite Costia (Ichthyobodo necator) and amoebae, which are ultimately lethal for fry/smaller fish. In addition, a Midichloria-like bacterium causes the non-lethal skin disease Red Mark Syndrome (RMS), which results in downgrading/rejection of up to 30% of the fish when placed on the market. Treatment by use of antibiotics/parasitics/ auxiliary compounds is only possible to a limited extent in organic trout production. Hence, solutions to prevent and/or treat costia, amoebae and RMS are urgently needed, not only to secure production of organic rainbow trout in...
Tipo: Conference paper, poster, etc. Palavras-chave: Production systems; Health and welfare; Aquaculture.
Ano: 2019 URL: http://orgprints.org/36515/1/Jokumsen_ShelterFish_Poster_.pdf
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Øko-foder lige så godt for regnbueørredyngel som konventionelt Organic Eprints
Madsen, Lone; Ingerslev, Hans-Christian; Dalsgaard, Inger; Boye, Mette; Buchmann, Kurt; Chettri, Jiwan K.; Jørgensen, Louise von Gersdorff; Lauritsen, Anne Hjørngaard; Henriksen, Niels Henrik.
Ingredienserne i fiskefoderet ser ud til at have større betydning end hvorvidt foderet er økologisk eller konventionelt ved opdræt af regnbueørreder. Det viser forsøg gennemført i projektet OPTIFISH.
Tipo: Newspaper or magazine article Palavras-chave: Feeding and growth; Health and welfare; Denmark.
Ano: 2014 URL: http://orgprints.org/28101/6/28101.pdf
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Promising water treatment practices with peracetic acid products Organic Eprints
Pedersen, Lars-Flemming; Jokumsen, Alfred; Larsen, Villy J.; Henriksen, Niels Henrik.
Peracetic acid products can be used as sanitizers to control water quality in aquaculture systems. Here we describe recent practical experiences of applying peracetic acid (PAA) as an alternative to formalin or sodium chloride. PAA has strong antimicrobial effect, it is easy degradable and relatively safe to use work-wise. Being a strong oxidant, PAA resembles ozone in its mode of action and the associated rapid decay. This can be a challenge towards optimizing treatment protocols, and continuous low dose applications seem to be a promising solution. PAA is listed among the few disinfectants to be approved to be applied in organic aquaculture where formalin is prohibited (EU, 2014a). As of January 2016, organic trout production fully depends on organic...
Tipo: Report Palavras-chave: Food security; Food quality and human health Recycling; Balancing and resource management Air and water emissions Education; Extension and communication.
Ano: 2014 URL: http://orgprints.org/28340/7/28340.pdf
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Udvikling af dansk økologisk yngelopdræt Organic Eprints
Larsen, Villy J.; Henriksen, Niels Henrik; Pedersen, Lars-Flemming; Jokumsen, Alfred.
Projektet har understøttet etablering, omlægning, drift og optimering af sygdomsforebyggelse af de første danske fiskeopdrætsanlæg med produktion af økologisk øjenæg og fiskeyngel. Dette er sket med henblik på at være på forkant med implementering af bestemmelsen herom i EU forordning for økologisk akvakultur (EC no. 710/2009, artikel 25e) og herved at sikre produktion af økologisk yngel til økologisk fiskeproduktion i Danmark og/eller eksport med henblik på videreproduktion i udlandet. I løbet af projektet er to avlsdambrug omlagt til økologisk produktion af øjenæg og yngel af regnbueørred og bækørred. Ved projektets afslutning er Danmark EU’s største producent af økologiske øjenæg og yngel af de to ørredarter, med mulighed for eksport af disse produkter.
Tipo: Report Palavras-chave: Breeding and genetics; Health and welfare; Aquaculture.
Ano: 2015 URL: http://orgprints.org/29429/1/Projektrapport-%C3%98kologisk%20yngel.pdf
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Organic diets are equally good for rainbow trout fry as conventional diets Organic Eprints
Madsen, Lone; Ingerslev, Hans-Christian; Dalsgaard, Inger; Boye, Mette; Buchmann, Kurt; Chettri, Jiwan K.; Jørgensen, Louise von Gersdorff; Lauritsen, Anne Hjørngaard; Henriksen, Niels Henrik.
With respect to rainbow trout, the OPTIFISH project has shown that feed composition is more important than whether the feed are of organic or conventional origin.
Tipo: Newspaper or magazine article Palavras-chave: Feeding and growth; Health and welfare.
Ano: 2015 URL: http://orgprints.org/28102/6/28102.pdf
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Peracetic Acid Products Expand Sanitizing, Organic Water Treatment Options Organic Eprints
Pedersen, Lars-Flemming; Jokumsen, Alfred; Larsen, Villy J.; Henriksen, Niels Henrik.
Peracetic acids can be used as sanitizers to control water quality in aquaculture systems. As an alternative to formalin, chloramine-T or copper sulphate, PAA has strong anti-microbial effects, degrades quickly and is relatively safe to use. Its mode of action and associated rapid decay can make optimizing treatment protocols a challenge. Continuous low-dose applications seem to be a promising solution. PAA is among the few disinfectants approved for organic aquaculture
Tipo: Journal paper Palavras-chave: Air and water emissions; Health and welfare; Regulation.
Ano: 2015 URL: http://orgprints.org/28653/7/28653.pdf
Registros recuperados: 6
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