EU-pengar till musselodling i Östersjön

musslaProjektet Baltic Blue Growth har beviljats 50 miljoner kr under åren 2016-2019 för att utvärdera om storskalig musselodling kan bidra till att minska övergödningsproblematiken i Östersjön. Målet är också att ta fram ett fodermjöl av musslorna som ska kunna användas som ersättning för fiskmjöl i djurfoder. SLU och Vattenbrukscentrum Ost är två av 18 partners från sammanlagt 7 länder kring Östersjön. Ansvarig för projektet är Region Östergötland.

Läs mer…

Mer info

Läs mer ...

Publikation från SLU-forskare om alternativa fiskfoder

foderNy vetenskaplig publikation från SLU-forskare:

Metabolic insights in Arctic charr (Salvelinus alpinus) fed with zygomycetes and fish meal diets as assessed in liver using nuclear magnetic resonance (NMR) spectroscopy

Rani Abro, Ali Ata Moazzami, Jan Erik Lindberg, Torbjörn Lundh

Läs hela artiklen via http://www.springer.com/alert/urltracking.do?id=L4b82ca9Mf6650eSb1036f7

 

Abstract

Fish meal is the major source of animal protein in feed for cultured salmonid fish, but its availability
is limited and it must eventually be replaced by alternative protein-rich feed ingredients. Zygomycetes
(Rhizopus oryzae) is a fungus with protein-rich biomass that could replace fish meal protein in fish feed. Using
an 1H NMR spectroscopy approach, we studied the metabolic pattern in liver tissues of Arctic charr (Salvelinus
alpinus) fed a commercial diet with unknown composition (ST), a diet with all protein from fish meal
(FM) and a diet with most of the protein from zygomycetes biomass (FZ). No significant difference (p C 0.05)
was found in spectral data between FM and FZ using the OPLS-DA fitted model. However, other models
showed that diet ST clearly differed (p\0.05) from diets FM and FZ. Signals for acetate, b-alanine, choline,
creatine, formate, glucose, inosine, lysine, SN-glycero-3-phosphocholine and two unknown metabolites were
higher in fish fed diets FM and FZ than in fish fed diet ST. These results show that the metabolic profile in
liver of Arctic charr will remain unchanged if fish meal protein is replaced with zygomycete protein, suggesting
similar physiological responses to both feed ingredients. In contrast, feeding a commercial diet altered
the metabolic fingerprint compared with diets FZ and FM, suggesting important differences in ingredient
composition and the physiological response to this diet.

Keywords Arctic charr  Metabolomics  NMR  Metabolites  Zygomycetes  Fish meal  Diets  Fish

 

 

Mer info

Läs mer ...
Prenumerera på denna RSS-feed