economy

The Pyongyang Catfish Farm continues to raise the level of scientific and intensive catfish farming.

This year, the farm renovated various production processes to improve the quality of floating feed for catfish.

Technicians renovated the selection equipment so as to completely remove impurities from among raw materials and remodelled the raw materials transfer process into an air pressure-based one.

This has made it possible to improve the quality of floating feed 1.5 times and save as much as 60 percent of the fund for the repair of the equipment.

The farm further raised the operation rate of catfish catching and feed supply machines by improving them in collaboration with scientific research institutions.

It also introduced technologies for remarkably increasing the digestibility and absorptivity and fattening rate of catfish as compared to before and for reducing the death rate, as well as a water management system capable of optimizing catfish breeding.

According to section chief Hwang Myong Chol, the farm has kept increasing output of catfish by channelling efforts into shortening the growth period of catfish and lowering the feed unit while maximizing the hatching capacity of high-yielding varieties of catfish.

The farm is now pushing at the final stage with the research for producing floating feed with such non-grain raw materials as used mushroom substrates and mud.