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Importance of Feed Enzymes for Shrimp and Fish in Sustainable Aquaculture
The expansion of global aquaculture production is increasing the demand for aquaculture feeds. Fishmeal is the main and most critical ingredient in aqua-feed production. The increasing cost of fishmeal has encouraged feed manufacturers search for cheaper...
Behavioural Disturbances in a Temperate Fish Exposed to Sustained High-CO2 Levels
As atmospheric CO2 levels rise, the CO2 concentration in ocean surface waters increases through a process commonly referred to as ocean acidification. Recently, surprising behavioural modifications have been detected in the early life stages of tropical...
Immunomodulation Properties of Bacterial Meal Grown on Natural Gas Against Soybean Meal-Induced Enteritis in Salmon
The increased use of plant proteins as replacements of fish meal (FM) in aqua feeds may have adverse effects on nutrient digestibility, growth performance and gut health. Solvent extracted soybean meal (SBM), the major protein source in animal diets induces...
Influence of Developmental Stage and Genotype on Liver mRNA Levels Among Wild, Domesticated, and Hybrid Rainbow Trout
Samantha L White et al, Fisheries and Oceans Canada, examined levels of mRNA in domesticated, wild and hybrid rainbow trout (Oncorhynchus mykiss) to investigate the influence of genotype (domesticated vs. wild, and their interactions in hybrids) and developmental...
Catching, Handling and Transport: The Implications for Fish Welfare
For many farming practices, the capture, handling and transport of fish is an essential requirement; however with each of these activities found to be a stressful process, what are the implications for fish welfare? Hannah Chilvers, writing for TheFishSite.com,...
US Seafood Naming Rules: Do They Provide Real Guidance for the Seafood Industry?
Reports of product mislabeling are a constant story in the global seafood industry, with many advocating for more strict enforcement of naming requirements. The calls for more enforcement of seafood labeling rules begs the question of whether those rules...
A Review on Population Characteristics of Gilthead Seabream
S. aurata is a marine fish living along the Atlantic coasts of Europe and the Mediterranean Sea. It is an important food species, so that its production reached 128,943 t in the European aquaculture in 2008. However, little is known on its biology, in...
Whisky Co-products a Sustainable Protein Source for Aquaculture Feeds
With a growing demand for alternative proteins to satisfy the nutritional requirements of fish, Julio Traub et al, Heriot-Watt University, Scotland, looked at the use of proteins from Malt (MW) and Grain Whisky (GW) co-products and presented their findings...
High Level of Cross Reactivity Between Different Strains of Salmonid Alphavirus Demonstrated in Study
Authors Dr David Graham and Dr Marian McLoughlin have commented on a recent study conducted by the Fish Diseases Unit (FDU) of the Agri-food and Biosciences Institute in Belfast and MSD Animal Health in Bergen, which has investigated relationships between...
What Causes Melanin Pigmentation in Salmon Fillets?
A PhD project carried out at the Norwegian School of Veterinary Science has examined the unwanted discoloration, or melanin "black spots", of muscle fillets from farmed salmon....
Effect of Dietary Inclusion of Seaweeds on Intestinal Proteolytic Activity of Juvenile Sea Bream
In the last years considerable attention has been paid on the use of seaweeds (SW) as a possible ingredient for aquafeeds. Red, green and brown SW can be taken from their natural habitat and brought to the shore by the action of winds and tides, write...
Horizontally Transferred Genes in the Genome of Pacific White Shrimp
In recent years, with the development of next-generation sequencing technology, a growing number of genes have been reported as being horizontally transferred from prokaryotes to eukaryotes, most of them involving arthropods. As a member of the phylum...
Effects of Salinity and Exercise on Atlantic Salmon Postsmolts Reared in RAS
Speaking at Aquaculture Europe 2013, T. Ytrestøyl et al, Nofima, Norway, discussed the effects that salinity and exercise have on the performance and physiology of Atlantic salmon postsmolts reared in recirculating aquaculture systems (RAS)....
Effects of Slaughtering Methods on Protein Denaturation of Frozen Pacu Fillets
In order to gain more understanding of the link between slaughtering and meat quality, M. M. Viegas et al, University São Paulo, evaluated how different slaughtering methods for pacu influence the protein denaturation of frozen fillets stored for 180...
Ending Child Labour for Girls and Boys in the Fisheries Sector
More than 129 million child labourers in the world work in the agriculture sector, which includes fisheries, aquaculture, forestry and livestock. These girls and boys, between the ages of 5 and 17, are performing work that interferes with their education...
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