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Abstract The present study is a continuation of our previous work on in-situ detection and localization of viral haemorrhagic septicemia virus (VHSV) in olive flounder. As VHSV must cross and overcome the external barriers to reach the target organs, the role of external tissues becomes important in early viral uptake. However, investigations in this line are scarce and have not received much attention. Here, we investigated VHSV uptake in olive flounder to decipher the role of external tissues ...
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Abstract Effective sampling is essential to monitoring and controlling sea lice infestations on salmon farms. However, official sampling regimes are often inadequate, typically adopting a one-size-fits-all approach. Over the past decade, the thresholds at which mandatory treatment is required has also been reduced in many regions and, as such, the total infestation loads reported from salmon farms tend to be lower. Therefore, the use of prevalence, as opposed to the more conventionally used abun...
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Abstract The present study was conducted to investigate the effects of dietary bile acid (BA) on the growth performance, body composition, antioxidant responses and expression of lipid metabolism-related genes of juvenile large yellow croaker (Larimichthys crocea) (average weight, 12.00 ± 0.20 g). An optimal lipid diet formulated with 4.0% fish oil and 4.0% soybean oil was set as the positive control diet (MO), while a high-lipid diet formulated with 6.5% fish oil and 6.5% soybean oil was used a...
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Abstract The Rade de Cherbourg (RdC), in the North Cotentin (Normandy, English Channel) is the only French coastal zone where an offshore salmon farm has been in operation over the past three decades. Our study leads to the identification of the Ecological Quality status of benthic habitats based on a one-year survey (2013–2014) underneath and near the cages as well as in non-impacted areas lying outside the influence of salmon farming. The semi-diurnal high tide regime of the Rade de Cherbourg ...
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Abstract Megalocytivirus, the causative agent for Red Sea Bream Iridoviral Disease (RSIVD), is classified into three genotypes based on its phylogeny: Red Sea Bream Iridovirus (RSIV), Infectious Spleen and Kidney Necrosis Virus (ISKNV), and Turbot Reddish Body Iridovirus (TRBIV). To overcome drawbacks such as limitation of genotypic variant type discrimination and unexpected PCR reaction from an SYBR green-based genotyping method by high-resolution melting analysis, peptide nucleic acid (PNA)-ba...
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Abstract Waterless transport is an alternative method to realize the larger volume and higher survival rate of live aquatic products, this paper aims to investigate the effects of transport multi-stressors on the blood physiology and flesh quality, then optimize the setting of ambient parameters during waterless live transportation. Amur sturgeon, Acipenser schrenckii is selected as research objective because it is a representative fish of Chinese farmed sturgeon species. Fish were divided into ...
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Abstract The impact of partial replacement of fish meal with methylated soy protein isolates (MSPI) on fish performance was assessed in 10 weeks feeding trial using Nile tilapia,Oreochromisniloticusfingerlings (n = 225) with average initial weight 18.51 ± 0.05 g/fish. The effects on the growth, histopathological condition of certain organs, economic efficiency, immune status, and disease resistance to Aeromonashydrophila were evaluated. The fingerlings were randomly segregated into five experime...
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Abstract The present study aimed at the development of an effective and efficient artificial reproduction technique for cultured female tongue sole (Cynoglossus semilaevis) in out-of-season. After about four-month enriching cultivation of broodstocks, a series of experiments were conducted to develop a protocol for the hormonal induction of ovulation and artificial fertilization. The results showed that single injection of combination of luteinizing hormone releasing hormone analogue (LHRH-A3), ...
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Abstract The present study was carried out to evaluate the effect of processed canola meal (PCM) as fishmeal (FM) substitute in juvenile Nile tilapia diet. Firstly, canola meal (CM) was dephytinized using 2000 IU/kg phytase and subjected to methanolic ammonia solution (MAS). Finally, five isonitrogenous and isoenergetic diets were formulated by inclusion of 0 (control), 12.5, 25, 37.5 and 50% PCM at the expense of dietary FM. Each experimental diet was fed to three randomly allotted groups of 17...
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Abstract Arctic charr (Salvelinus alpinus) farming is an emerging component in today's aquaculture sector; however, intensive aquaculture sites provide optimal conditions for disease. Although vaccines have been developed and tested for other major cultured salmonids, such as Atlantic salmon (Salmo salar), it is unknown if such vaccines provide protection in Arctic charr. Therefore, the present study aimed to evaluate the efficacy of two vaccines, Forte Micro® and Renogen®, administered solely o...
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