The aim of this PhD project is to gain a better understanding of how feeding of dietary supplements, derived from new and sustainable sources, affect nutrient uptake, metabolism and gene expression and the gut micro flora of rainbow trout.
Institutionen för tillämpad husdjursvetenskap och välfärd
SLU together with Örebro University/Grythyttan, is now developing methodology to better understand how to improve farming of fish, not only for more environmentally friendly production with high animal welfare, but also to produce a raw material of the highest gastronomic quality.
Institutionen för tillämpad husdjursvetenskap och välfärd
There are over 30000 species of fish, living in a wide range of habitats. To treat ‘fish’ as one group is probably even less meaningful than to attempt to produce general guidelines for ‘mammals’. In this project, we will focus on three model species, i.e. zebrafish (Danio rerio), brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss), Representing fish in laboratory experiments, environmental monitoring, and aquaculture respectively.
Institutionen för tillämpad husdjursvetenskap och välfärd
Nordic co-operation will improve the conditions for developing sustainable, microbial feed ingredients for salmonids produced on various residual products with the help of biotechnology.
The project will identify the main causes affecting male fertility and assess to which degree they explain the low reproductive performance in Arctic charr farmed in Sweden. Multiple parameters will be explored, such as age, sampling time during the spawning season, and genetics. Finally, we will analyze the possible effect of male reproductive dysfunctions on progeny using RNA sequencing.
Institutionen för tillämpad husdjursvetenskap och välfärd
Insects are increasingly considered as sustainable source of protein in fish feed, but what are the consumers' attitudes towards fish fed insects instead of conventional protein sources?
Institutionen för tillämpad husdjursvetenskap och välfärd
Up to 20% of farmed salmonids die before reaching slaughter. This occurs during stressful situations such as delousing, deteriorating water quality, and transport. This is a serious welfare issue, and prevents a sustainable, ethical and economical growth of the Nordic aquaculture industry.
Institutionen för tillämpad husdjursvetenskap och välfärd
The project aims to investigate if and how rainbow trout and Arctic charr can be farmed sustainably in hydropower dams in northern Sweden from a biological, ecological, social and economical perspective. The project will last for five years and is a cooperation between SLU and external partners such as SVA, the industry organisation Matfiskodlarna, the hydropower industry and civil society via Landsbygdsnätverket.
Institutionen för tillämpad husdjursvetenskap och välfärd
Project aim is to develop a sustainable protein source of high value for farmed fish, based on filamentous fungi grown on residues from ethanol production.
Institutionen för tillämpad husdjursvetenskap och välfärd
The aim of this project is to develop a standardized germ-free and germ-associated rainbow trout larval model systems as a means to understand the interplay among novel nutraceuticals, defense system and gut microbiota with a focus to improve larval quality.
Institutionen för tillämpad husdjursvetenskap och välfärd
In a germ-free animal, nutritional (and other) processes can be studied without interference from the microorganisms commonly inhabiting the gut in a conventional environment. The extent to which that process is modified by microbial action can then be examined by introducing a known microflora. Such kind of gnotobiotic tools is now recognized as essential in the advancement of knowledge on various aspects of nutrition and health.
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This project is a continuation of the previous project, Green Valleys 1.0 (2018-2022), aiming to promote circular production of green protein (from green biorefinery) to create new business opportunities for the agriculture and aquaculture sectors.
Institutionen för tillämpad husdjursvetenskap och välfärd
The goal is to improve our understanding of the environmental impact and influence of host animal factors on intestinal microbiota and lipid metabolism in salmon.
Institutionen för tillämpad husdjursvetenskap och välfärd
In 2017, EU approved use of insects in fish feed. Wild salmonids and other fish naturally feed on insects throughout their lives. Feeding farmed fish with live insects could be environmentally friendly, and provide for nutrient requirements of the fish. This project will assess the feasibility of feeding whole black soldier fly larvae to rainbow trout.
Institutionen för tillämpad husdjursvetenskap och välfärd
Several national and international studies have shown that the welfare of fish in aquaculture in many aspects is substandard. This is partly because it is difficult to assess fish stress, suffering and well-being as they lack many of the behaviors that signal negative stress, disease, pain and discomfort in other animal species.
Institutionen för tillämpad husdjursvetenskap och välfärd
Aquaponics, integrated systems for production of fish and plants, display an alternative for production of animal protein and health-promoting vegetables. Scaling up aquaponic systems for primary production requires increased knowledge about challenges in the system regarding e.g. nutritional balance with respect to the plants, plant and fish diseases, as well as quality of the product.
Institutionen för tillämpad husdjursvetenskap och välfärd
The aim of the project was to evaluate and compare the ability of using distilled brewer's yeast and microbe mixture to replace fish based protein meal in diets to the marine fish, Asian Sea Bass (Lates calcarifer) and to the fresh water fish, red tilapia (Oreochromis sp.) and the giant freshwater shrimp (Macrobrachium rosenbergii).
The main objective of the project is to gather SLU researchers from different disciplines to write a research proposal focusing on developing a sustainable aquaponic system including feed based on black soldier fly protein and oil, with single cell proteins and marine waste streams.
Institutionen för tillämpad husdjursvetenskap och välfärd
Baltic Blue Growth was an Interreg project that aimed to tackle Baltic Sea eutrophication through establishing operational mussel farms and securing viable solutions for the produced mussels.
