MOSCOW, October 2A new completely domestic starter feed for salmon fish was presented by scientists from Northern (Arctic) Federal University. According to them, the results of the experiments showed an almost threefold increase in the weight of the model individual, which is comparable to the effect of using high-quality imported analogues, the university press service reported.
Today, as university experts note, for high productivity of aqua farms, special feeds are used that can give maximum weight gain to fish with a minimum feed ratio. However, at the moment, about 80% of such feed on the market is imported, which creates problems in supplying domestic farms.
Researchers from the Northern (Arctic) Federal University named after M.V. Lomonosov (NAFU) presented experimental formulations of starter feed for juvenile salmon species, the effectiveness of which is comparable to imported analogues, and the price is half as low due to the use of only domestic components.
“The feed is rich in essential amino acids, it contains more than 40% of the mass fraction of crude protein, which allows us to consider the developed composition of the feed formulation as a complete, balanced and high-quality product, ready for use in the industrial production of fish farms,” said the head of the department of landscape architecture and artificial forests of NArFU Alexander Antonov.
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The effectiveness of the domestic “diet” was tested at the Solzensky production and experimental salmon plant in the Arkhangelsk region. Brown trout, a lake or stream fish from the salmon family, was chosen as a model fish.
«At the end of the experiment — after 40 days of feeding — the increase in fish weight was 187% (weight increased by 2 » , — said Antonov.
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He added that the project is very promising for commercialization, and can find wide application both in large industrial aquaculture farms and in private business.
All work on the production of feed was carried out in the feed workshop of the Aquaculture Center of NArFU on Russian equipment. According to the scientist, the main goal that the team now faces is to develop a line of feed for trout and obtain safe fish products in mass production.
The research was carried out within the framework of the REC project «Russian Arctic: new materials, technologies and research methods» with the support of the Ministry of Economic Development, Industry and Science of the Arkhangelsk Region.