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
The election of deputies to the 15th Supreme People's Assembly of the DPRK took place at all the constituencies across the country
March 16, 2026
The election of deputies to the 15th Supreme People's Assembly of the DPRK took place at all the constituencies across the country
Dear voters,Workers and officials of the Chonsong Youth Coal Mine, who are working with devotion for the country’s prosperity at a
March 16, 2026
Dear voters,Workers and officials of the Chonsong Youth Coal Mine, who are working with devotion for the country’s prosperity at a
The international community is raising voices against Israel as it recently decided to officially register the land in the West Ba
March 15, 2026
The international community is raising voices against Israel as it recently decided to officially register the land in the West Ba
A long-range artillery sub-unit of the Korean People's Army in a western area conducted a firepower strike drill on March 14.
March 15, 2026
A long-range artillery sub-unit of the Korean People's Army in a western area conducted a firepower strike drill on March 14.
People began to move into new houses on Pyongyang’s Saeppyol Street. The respected Comrade Kim Jong Un attended the inaugural
March 15, 2026
People began to move into new houses on Pyongyang’s Saeppyol Street. The respected Comrade Kim Jong Un attended the inaugural
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
March 15, 2026
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
Russian presidential press secretary Dmitri Peskov at a press conference on March 8 denounced European countries for their attitud
March 14, 2026
Russian presidential press secretary Dmitri Peskov at a press conference on March 8 denounced European countries for their attitud
The respected Comrade Kim Jong Un received congratulatory messages and letters from different countries on the occasion of his
March 14, 2026
The respected Comrade Kim Jong Un received congratulatory messages and letters from different countries on the occasion of his
The central election committee for the election of deputies to the 15th Supreme People's Assembly of the Democratic People's
March 14, 2026
The central election committee for the election of deputies to the 15th Supreme People's Assembly of the Democratic People's
A stamp exhibition opened with due ceremony at the Korean Stamp Exhibition House in Pyongyang on March 12 in commemoration of the
March 14, 2026
A stamp exhibition opened with due ceremony at the Korean Stamp Exhibition House in Pyongyang on March 12 in commemoration of the
Officials and members of the women's union held a meeting at the plaza of the Monument to Party Founding on March 12 to vow to
March 14, 2026
Officials and members of the women's union held a meeting at the plaza of the Monument to Party Founding on March 12 to vow to
The World Meteorological Organization, in a report issued in January, noted that 2025 was recorded as one of the hottest years
March 13, 2026
The World Meteorological Organization, in a report issued in January, noted that 2025 was recorded as one of the hottest years
Russian President Vladimir Putin referred to the root cause of the Ukrainian crisis in an interview with a journalist of the
March 13, 2026
Russian President Vladimir Putin referred to the root cause of the Ukrainian crisis in an interview with a journalist of the
The Mexican president stressed the need to enhance the role of women in nation building as she addressed an event held on the occa
March 13, 2026
The Mexican president stressed the need to enhance the role of women in nation building as she addressed an event held on the occa
The 39th Pyongyang Municipal Festival of Science and Technology opened with due ceremony at the Sci-Tech Complex on March 11 under
March 13, 2026
The 39th Pyongyang Municipal Festival of Science and Technology opened with due ceremony at the Sci-Tech Complex on March 11 under
Many students in the final year of senior middle schools in North Hwanghae Province volunteered for military service in the
March 13, 2026
Many students in the final year of senior middle schools in North Hwanghae Province volunteered for military service in the
The coal-mining industry sector is waging a vigorous struggle for increased production. Coal production is going up day by day
March 13, 2026
The coal-mining industry sector is waging a vigorous struggle for increased production. Coal production is going up day by day
There was a solemn ceremony at the Central Committee of the Workers' Party of Korea, the General Staff of the revolution, in
March 13, 2026
There was a solemn ceremony at the Central Committee of the Workers' Party of Korea, the General Staff of the revolution, in
Russian presidential press secretary Dmitri Peskov at a press conference on March 6 gave Finland a warning as to its announcement
March 12, 2026
Russian presidential press secretary Dmitri Peskov at a press conference on March 6 gave Finland a warning as to its announcement
The 25th Winter Paralympics opened in Italy on March 6. At the opening ceremony held on the theme of “Active life”, the
March 12, 2026
The 25th Winter Paralympics opened in Italy on March 6. At the opening ceremony held on the theme of “Active life”, the
More Articles
