The Rinsan Catfish Farm is located in Taechon-ri of Rinsan County, North Hwanghae Province.
It uses hot spring water gushing out of the point between limestone and granite areas.
“Taechon-ri produced only mud snails using hot spring water in the past. But it is now well known to the province as a catfish producer,” workteam leader Sin Chun Il said.
According to him, the temperature of the hot spring water is between 24 and 33 degrees centigrade, an ideal condition for the growth of catfish.
The farm established an integrated production system to control water temperature, pH and amount of oxygen of indoor and outdoor ponds in real time and therefore the quantities of water and feed are adjusted accordingly.
What is noticeable is that it set up a scientific system of producing pure and seed fish to increase the survival rate of fries.
“We introduced a production method stimulating hypophysis and discovered a way to improve incubation rate, while establishing a scientific method of raising and tending seed fish,” said manager Jang In Hak.
It also put a water recycling system on a scientific basis to better the quality of water flowing into fry ponds and raises the level of scientific water management based on the water analysis system, including the sterilization and supply of water and an efficient way of changing water according to growth conditions.
It established a system of raising fish with floating feed with high protein content and actual feeding rate while reducing the norms of feed consumption.
It has recently introduced a gravity-fed water supply system to fill ponds of an indoor fattening block with water without using electricity.
The farm turns out millions of fries a year to send them to fish ponds and paddy fields in cities and counties of the province.
More From Pyongyang Times
Dmitri Medvedev, vice-chairman of the Security Council of Russia, censured the West for spending huge amounts of money on Ukraine
November 10, 2025
Dmitri Medvedev, vice-chairman of the Security Council of Russia, censured the West for spending huge amounts of money on Ukraine
A vice-defence minister of Russia emphasized the need to adhere to the single and indivisible security principle at the recent
November 10, 2025
A vice-defence minister of Russia emphasized the need to adhere to the single and indivisible security principle at the recent
DPRK players returned home after taking part in the 1st CISM Military Men's Weightlifting Challenge held in Iran. At the
November 10, 2025
DPRK players returned home after taking part in the 1st CISM Military Men's Weightlifting Challenge held in Iran. At the
A public tasting of apples and pears produced on fruit farms across the country this year took place in Pyongyang on October 29.
November 10, 2025
A public tasting of apples and pears produced on fruit farms across the country this year took place in Pyongyang on October 29.
The 19th National Machine Design Festival took place at the Okryu Exhibition House between October 24 and 30. On display at the
November 10, 2025
The 19th National Machine Design Festival took place at the Okryu Exhibition House between October 24 and 30. On display at the
The Kuryongphyong Dairy Cattle and Goat Farm in Hongui-dong, Sonbong District, Rason Municipality, has developed into a modern
November 10, 2025
The Kuryongphyong Dairy Cattle and Goat Farm in Hongui-dong, Sonbong District, Rason Municipality, has developed into a modern
A spokesman for the Chinese Foreign Ministry denounced Japan’s interference in China’s internal affairs at a news conference on No
November 09, 2025
A spokesman for the Chinese Foreign Ministry denounced Japan’s interference in China’s internal affairs at a news conference on No
The 2025 National Open Table-Tennis Tournament and Open Tennis Tournament took place at the Table-Tennis Gymnasium and the
November 09, 2025
The 2025 National Open Table-Tennis Tournament and Open Tennis Tournament took place at the Table-Tennis Gymnasium and the
The 12th Pyongyang Musical Instruments Exhibition opened with due ceremony at the Pyongyang International House of Culture on
November 09, 2025
The 12th Pyongyang Musical Instruments Exhibition opened with due ceremony at the Pyongyang International House of Culture on
The 12th National Exhibition of Scientific Research Achievements of Universities took place at Kim Chaek University of Technology
November 09, 2025
The 12th National Exhibition of Scientific Research Achievements of Universities took place at Kim Chaek University of Technology
Rural residential districts have been built at the Jungdok and Jungsang farms in Junggang County, Jagang Province, which are
November 09, 2025
Rural residential districts have been built at the Jungdok and Jungsang farms in Junggang County, Jagang Province, which are
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
November 09, 2025
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
The Joyang Farm of the South Hamgyong Provincial Rural Economy Committee had a good harvest this year. Thanks to the officials and
November 09, 2025
The Joyang Farm of the South Hamgyong Provincial Rural Economy Committee had a good harvest this year. Thanks to the officials and
The 18th national symposium on the experience of health workers took place at the Myohyangsan Medical Appliances Factory on
November 09, 2025
The 18th national symposium on the experience of health workers took place at the Myohyangsan Medical Appliances Factory on
Production is constantly on the upswing at the Chollima Tile Factory, a powerful building-materials producer of the country. The
November 09, 2025
Production is constantly on the upswing at the Chollima Tile Factory, a powerful building-materials producer of the country. The
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
November 09, 2025
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
Russian Foreign Ministry spokeswoman Maria Zakharova said on SNS on November 1 that the US is the den of drug crimes. Censuring
November 08, 2025
Russian Foreign Ministry spokeswoman Maria Zakharova said on SNS on November 1 that the US is the den of drug crimes. Censuring
DPRK coach Ri Song Ho and DPRK player Choe Il Son were awarded the AFC Coach of the Year (Men) and the AFC Youth Player of the
November 08, 2025
DPRK coach Ri Song Ho and DPRK player Choe Il Son were awarded the AFC Coach of the Year (Men) and the AFC Youth Player of the
No Kwang Chol, minister of National Defence of the Democratic People's Republic of Korea, met and had a talk in a friendly
November 08, 2025
No Kwang Chol, minister of National Defence of the Democratic People's Republic of Korea, met and had a talk in a friendly
Modern houses have been built in Yonsu-ri of Yonsa County, North Hamgyong Province. The dwelling houses were designed in diverse
November 08, 2025
Modern houses have been built in Yonsu-ri of Yonsa County, North Hamgyong Province. The dwelling houses were designed in diverse
More Articles
