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
A delegation of the Hydro-Meteorological and Environmental Monitoring Bureau of the Russian Federation led by Director Igor
May 08, 2026
A delegation of the Hydro-Meteorological and Environmental Monitoring Bureau of the Russian Federation led by Director Igor
May 8 is World Red Cross and Red Crescent Day. The ideal of the Red Cross and Red Crescent does not assume any governmental,
May 08, 2026
May 8 is World Red Cross and Red Crescent Day. The ideal of the Red Cross and Red Crescent does not assume any governmental,
Tens of young people in North Phyongan Province have volunteered to work at major worksites for socialist construction. An
May 08, 2026
Tens of young people in North Phyongan Province have volunteered to work at major worksites for socialist construction. An
Many people from all walks of life in the DPRK are visiting the Memorial Museum of Combat Feats at the Overseas Military
May 08, 2026
Many people from all walks of life in the DPRK are visiting the Memorial Museum of Combat Feats at the Overseas Military
A spring aesthetic symposium in the field of land and environment protection-2026 took place at the Sci-Tech Complex in Pyongyang
May 08, 2026
A spring aesthetic symposium in the field of land and environment protection-2026 took place at the Sci-Tech Complex in Pyongyang
The congratulatory group of the Association of Young Korean Nationals in China led by Chairwoman Kim Song Mi visited Mangyongdae,
May 08, 2026
The congratulatory group of the Association of Young Korean Nationals in China led by Chairwoman Kim Song Mi visited Mangyongdae,
The Pyongyang Municipal Finishing Materials Exhibition for Rural Construction-2026 took place at the Sci-Tech Complex. Present
May 07, 2026
The Pyongyang Municipal Finishing Materials Exhibition for Rural Construction-2026 took place at the Sci-Tech Complex. Present
The respected Comrade Kim Jong Un, General Secretary of the Workers' Party of Korea and President of the State Affairs of the
May 07, 2026
The respected Comrade Kim Jong Un, General Secretary of the Workers' Party of Korea and President of the State Affairs of the
The congratulatory group of the Korean Youth League in Japan led by Ri Kwang Il, chairman of its Central Standing Committee,
May 07, 2026
The congratulatory group of the Korean Youth League in Japan led by Ri Kwang Il, chairman of its Central Standing Committee,
A meeting was held at the Central Youth Hall in Pyongyang on May 5 in commemoration of the 80th anniversary of the publication of
May 07, 2026
A meeting was held at the Central Youth Hall in Pyongyang on May 5 in commemoration of the 80th anniversary of the publication of
Diploma and medals of the February 16 Science and Technology Prize, the top prize in the sci-tech field of the country, were
May 07, 2026
Diploma and medals of the February 16 Science and Technology Prize, the top prize in the sci-tech field of the country, were
The physical constitution institute of the Koryo Medicine General Hospital has further completed a physical constitution
May 07, 2026
The physical constitution institute of the Koryo Medicine General Hospital has further completed a physical constitution
Russian Presidential Aide Nikolai Patrushev called for bolstering up the naval forces in a diplomatic meeting on April 28. At
May 06, 2026
Russian Presidential Aide Nikolai Patrushev called for bolstering up the naval forces in a diplomatic meeting on April 28. At
The charge d'affaires ad interim of the Russian embassy in Pyongyang hosted a friendship gathering at Hwasong Kumgang Restaurant
May 06, 2026
The charge d'affaires ad interim of the Russian embassy in Pyongyang hosted a friendship gathering at Hwasong Kumgang Restaurant
The 24th Pyongyang Spring International Trade Fair opened. Presented to the fair on the theme of "For the common development and
May 06, 2026
The 24th Pyongyang Spring International Trade Fair opened. Presented to the fair on the theme of "For the common development and
As a new era of comprehensive rejuvenation is being ushered in, the foodstuff industry is also undergoing marked development and
May 06, 2026
As a new era of comprehensive rejuvenation is being ushered in, the foodstuff industry is also undergoing marked development and
Ponghak spring water, Rungnado ginkgo tree and Paektusan Rhodiola elongata have been registered as new natural monuments in the
May 06, 2026
Ponghak spring water, Rungnado ginkgo tree and Paektusan Rhodiola elongata have been registered as new natural monuments in the
Certificates of best scientist and technician of the DPRK in 2025 were awarded to seven scientists and technicians, who made
May 06, 2026
Certificates of best scientist and technician of the DPRK in 2025 were awarded to seven scientists and technicians, who made
The Ministry of Metallurgical Industry is striving to further refine the Korean-style iron- and steel-making methods. The ministry
May 06, 2026
The Ministry of Metallurgical Industry is striving to further refine the Korean-style iron- and steel-making methods. The ministry
The participants in the Eleventh Congress of the Socialist Patriotic Youth League visited the Memorial Museum of Combat Feats at
May 05, 2026
The participants in the Eleventh Congress of the Socialist Patriotic Youth League visited the Memorial Museum of Combat Feats at
More Articles
