Sustainable aquaculture, from both ecological and economic perspectives, demands a substantial reduction of the amount of fishmeal used in aqua feed. Instead, plant-derived protein feed stuff, which provide a nutritious diet offer a promising alternative for inclusion in aqua feed. In this study, the effects of organic selenium supplementation in low and high soybean meal-based practical diets ...

The activity of the somatotropic axis was analysed in juvenile rainbow trout (Oncorhynchus mykiss) fed either a fishmeal-based diet (FM) or graded levels of plant proteins to replace 50% (PP50 diet), 75% (PP75 diet) or 100% (PP100 diet) of the fishmeal protein. For this purpose, partial cloning and sequencing of the gene encoding rainbow trout growth hormone receptor (GHR) was first accomplishe...

Two experiments were conducted in which cimateroI [CL263,780; (anthranilo-nitrile, 5-[1hydroxy-2-(isopropylamino) ethyl]-)] was fed at 0 or 10 ppm in a complete, mixed, high-concentrate diet to assess effects on growth performance and repartitioning of tissue growth in young, rapidly growing lambs. Average daily gain and feed efficiency (F/G) were not altered in Dorset wether lambs fed cimatero...

The projected stagnation in the catch from global fisheries and the continuing expansion of aquaculture is considered against the background that fishmeal and fish oil are major feed stocks for farmed salmon and trout, and also for marine fish. The dietary requirement of these farmed fish for high-quality protein, rich in essential amino acids, can be met by sources other than fishmeal. However...

THE EDITORIAL BY ROSAMOND NAYLOR, “Offshore aquaculture legislation” (8 Sept., p. 1363), suggests that the motivation for moving aquaculture into the open ocean is that “marine f ish farming near the shore is limited by state regulations.” Although unworkable regulations may exist in a few states, in the larger scheme this is irrelevant. Of the offshore aquaculture projects currently under way,...

This is second part from an experiment where the nitrogen retention of poultry by-product meal (PBM) compared to fishmeal (FM) was evaluated using traditional indices. Here a quantitative method using stable isotope ratios of nitrogen (δ(15)N values) as natural tracers of nitrogen incorporation into fish biomass is assessed. Juvenile rainbow trout (Oncorhynchus mykiss) were fed for 80 days on i...

In order to develop a sustainable salmonid aquaculture, it is essential continue reduce the use of protein-rich fishmeal. One promising solution do so plant-derived carbohydrates in diet destined broodstock. However, mammals, reduction protein content (replaced by carbohydrates) parental known have strong adverse effects on offspring phenotypes and metabolism. For first time, effect paternal ma...

Black soldier fly (Hermetia illucens) has gained attention as a sustainable novel protein source in fish feed due to its high nutritional value and low environmental impacts. In the past decade, effects of use black aquafeeds have widely been studied salmonids. A meta-analysis was conducted compile systematically quantify effect diets for salmonids on growth performance nutrient utilization. Th...

Anchovy (Engraulis encrasicolus L., 1758) is the main source of fishmeal in Turkey. The research was carried out 3 factories where anchovy processed Black Sea during 2007-2008 fishing season. Factories A and B have an evaporator system, while factory C does not system. In study, it aimed to reveal effect system on mineral substance quality produced oil factories. As a result this elements are l...