The Taedonggang Eel Farm has applied the microflora technology, an advanced fish breeding technology in the world, to all eel breeding ponds covering thousands of square metres.
The microflora technology makes it possible to form a food chain by artificially cultivating useful microorganisms in water to feed fish with microorganisms ingesting the excrement of fish. It is now recognized as an advanced technology in fish farming in the world as it enables farms to breed fish without changing water while solving the shortage of feed.
“We conceived an idea to form a microflora in dozens of fish breeding ponds by way of multiplying and cultivating spores of microorganisms and paid attention to the making of a mud cultivation device needed for the cultivation of spores of microorganisms,” said section chief Pak Chol Hwan.
In the course of it, researchers solved scientific and technical problems including the technology for making the mud cultivation flasks maintain their position without being damaged in a quick shake in the device and the installation of thermostat and others.
And they found out scientific and technical indices for reducing the content of ammonia and nitrous acid which grows due to the excrement of fish and leftovers of its feed in fish ponds which are inoculated with spores of microorganisms in close collaboration with scientists of the microbiology institute of the State Academy of Sciences.
While performing an in-depth analysis of water quality, they also discovered that the key to success is to provide the proper amount of carbon and nitrogen sources.
By introducing the new technology into production of fish, the farm not only solved the feed problem of fish but also saved a large amount of labour and coal which were used for changing water at certain intervals.
Most important is that it increased the fattening rate of eel by 10-20 percent and halved the death rate.
More From Pyongyang Times
Mt Paektu has been called the ancestral mountain of the Korean nation from olden times and held an important position in the
May 13, 2026
Mt Paektu has been called the ancestral mountain of the Korean nation from olden times and held an important position in the
A quarterfinal match for the 2026 AFC U-17 Women's Asian Cup was held between the DPRK and Thai teams on May 11. The DPRK team
May 13, 2026
A quarterfinal match for the 2026 AFC U-17 Women's Asian Cup was held between the DPRK and Thai teams on May 11. The DPRK team
On May 6, Japan joined the combined military exercises led by the US and the Philippines in the sea off the north of Luzon Island
May 13, 2026
On May 6, Japan joined the combined military exercises led by the US and the Philippines in the sea off the north of Luzon Island
The respected Comrade Kim Jong Un sent a birthday spread to Kim Ju Hyon, a woman living in Neighbourhood Unit No. 17 of
May 13, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Kim Ju Hyon, a woman living in Neighbourhood Unit No. 17 of
Young Korean people have shown growing enthusiasm for volunteering to work at major units of socialist construction since the
May 13, 2026
Young Korean people have shown growing enthusiasm for volunteering to work at major units of socialist construction since the
Dozens of young men and women in South Hwanghae Province have volunteered for difficult and labour-consuming posts. Those in
May 13, 2026
Dozens of young men and women in South Hwanghae Province have volunteered for difficult and labour-consuming posts. Those in
A South Phyongan provincial friendship delegation of the DPRK led by Ri Song Bom, chairman of the South Phyongan Provincial
May 13, 2026
A South Phyongan provincial friendship delegation of the DPRK led by Ri Song Bom, chairman of the South Phyongan Provincial
The Russian Foreign Ministry made clear its principled stand on the Russia-Japan relationship on May 4. It asserted that as Japan
May 12, 2026
The Russian Foreign Ministry made clear its principled stand on the Russia-Japan relationship on May 4. It asserted that as Japan
A military parade took place at Red Square in Moscow on May 9 in celebration of the 81st anniversary of the victory in the Great
May 12, 2026
A military parade took place at Red Square in Moscow on May 9 in celebration of the 81st anniversary of the victory in the Great
As to the fact that hantaan virus caused deaths in an excursion ship sailing the Atlantic, the World Health Organization announced
May 12, 2026
As to the fact that hantaan virus caused deaths in an excursion ship sailing the Atlantic, the World Health Organization announced
The respected Marshal Kim Jong Un received a letter from the members of the congratulatory group of the Korean Youth League in
May 12, 2026
The respected Marshal Kim Jong Un received a letter from the members of the congratulatory group of the Korean Youth League in
The respected Marshal Kim Jong Un received a letter from the members of the congratulatory group of the Association of Young
May 12, 2026
The respected Marshal Kim Jong Un received a letter from the members of the congratulatory group of the Association of Young
The participants in the Ninth Congress of the General Federation of Trade Unions of Korea (GFTUK) conducted political and cultural
May 12, 2026
The participants in the Ninth Congress of the General Federation of Trade Unions of Korea (GFTUK) conducted political and cultural
The Wonhwa Farm in Phyongwon County, South Phyongan Province, started rice-transplanting on May 10. The farm is associated with
May 12, 2026
The Wonhwa Farm in Phyongwon County, South Phyongan Province, started rice-transplanting on May 10. The farm is associated with
On May 4, the Hong Kong Special Administrative Region of China decided to impose a ban on the import of poultry and poultry
May 11, 2026
On May 4, the Hong Kong Special Administrative Region of China decided to impose a ban on the import of poultry and poultry
Staff members of the Russian embassy in Pyongyang laid a wreath at the Liberation Tower on May 9 on the occasion of the 81st
May 11, 2026
Staff members of the Russian embassy in Pyongyang laid a wreath at the Liberation Tower on May 9 on the occasion of the 81st
The congratulatory group of the Korean Youth League in Japan led by Chairman of its Central Standing Committee Ri Kwang Il and the
May 11, 2026
The congratulatory group of the Korean Youth League in Japan led by Chairman of its Central Standing Committee Ri Kwang Il and the
Scientific research units in the DPRK concentrate their efforts on major projects for economic development. The State Academy of
May 11, 2026
Scientific research units in the DPRK concentrate their efforts on major projects for economic development. The State Academy of
Large-scale greenhouse vegetable producers of the country are expanding their achievements in production through scientific
May 11, 2026
Large-scale greenhouse vegetable producers of the country are expanding their achievements in production through scientific
Efficient water treatment technology The Natural Energy Institute of the State Academy of Sciences developed and introduced a
May 11, 2026
Efficient water treatment technology The Natural Energy Institute of the State Academy of Sciences developed and introduced a
More Articles
