The salmon can be knocked out of thiamine deficiency – Aftonbladet

Environment. the salmon in Swedish rivers are threatened.

the reason is thiamine deficiency, according to researchers at Stockholm University.

– thiamine deficiency is more widespread than we realized earlier, says Professor Lennart Balk said.

this year, it has been shown that a large part of laxhonorna in several of Sweden’s salmon rivers produce offspring that die as a result of thiamine deficiency , vitamin B1 deficiency, says Lennart Balk, a professor of biochemistry at the University of Stockholm, and refer to studies by the Natural Resources Institute (Luke) in Finland and the Swedish University of agricultural Sciences (SLU).

– while salmon in Swedish rivers increases due to reduced fishing in the Baltic Sea and the rivers, authorities are wondering why so many salmon fall ill with the virus. What they forget is that the cause is most likely to thiamine deficiency, says Lennart Balk said.

Man can itself take in vitamin B in another way but be affected by thiamine deficiency by species in danger of extinction, he stresses.

More hit laxkullar

in one of the reports he refers to the fishery biologist Hans Börjesson on behalf of SLU researched salmon fry that hatch in seven of Sweden’s rivers. The result, which was submitted to the university by the end of June this year, shows that 21 percent of laxkullarna affected by the disease M74, caused by thiamine deficiency.

– This is a drastic increase compared last year, when the figure was three percent, says Hans Börjesson to TT.

the reason is that laxhonorna in turn does not have enough thiamine to transfer to the ROM.

thiamine deficiency has varied over the years and the reason for it is yet unclear. One hypothesis is, according to Hans Börjesson thiamine deficiency in the phytoplankton, which is the main tiaminproducenten. Excessive nutrients can affect the Baltic Sea’s ecological balance, he argues.

Thiamine deficiency in birds

thiamine deficiency is also the reason that eiders, long-tailed ducks, scoters and scoters have declined, according to Lennart Balk . Birds that eat mussels, which in turn filters the phytoplankton.

But Martin Green, poultry researcher at Lund University, thinks that researchers focus too much on thiamine deficiency.

– Laxfrågan I am poorly versed in. But the bird deaths are also other causes, such as bacterial outbreak, said Martin Green, who believes we should focus on environmental threats that one can do anything about.

– I mean, should we bomb the flight Baltic Sea with thiamine? he asks rhetorically.

FACTS

Available in green plants

the number of wintering eiders, long-tailed ducks, scoters and common scoter has more than halved in the Baltic Sea since the early 1990′s.

A possible reason for the decline discussed the lack of B vitamins, thiamin, of seabirds. The same reason that some researchers believe is behind laxsjukdomen M74.

Thiamine deficiency is said to cause behavioral and reproductive disorders and brain damage in animals and leads to the mortality of birds and fish.

Thiamine is produced mainly in the green plants in our ecosystem. The animals get it by eating green plants and mussels.

Thiamine is essential for five life-sustaining enzymes in the cells. The cause of thiamine deficiency is still unknown.

American Academy of Sciences has evaluated and confirmed research findings on bird thiamine deficiency.

Source: Stockholm University

24 August 2016 04:34