The Samsok Breed Fish Farm in Pyongyang is well-known as a prolific producer of fries.
The farm has dozens of fishponds for adult, fries and reserve fishes, as well as several hectares of farmland and a stockbreeding base.
“The key to our farm’s successful annual increase in fry production is the proper operation of the food production cycle combining fish culture with animal husbandry and crop farming,” said manager Kim Hyon Chol.
According to him, the supply of fish feed based on microorganisms is the key issue in breeding silver carp and Aristichythys nobilis.
The fish farm gets them by producing compost after mixing rice straw and corn straw with the excrement of domestic animals.
It has several microorganism fermenting tanks and an earthworm feeding ground next to the stable where pigs, ducks, geese and chickens are bred, and turns out natural feeds, especially mycoprotein, by putting compost into them.
It is increasing the production of animal protein feed by building the Hermetia illucens feeding ground. And it produces and supplies assorted feed to meet the characteristics of different kinds of fishes with the help of cereals from farm work.
This ensures satisfactory nutrition needed for the growth of fishes while halving feed consumption. Employees say that they feel the vitality of the food production cycle through practical experience, since deposits piled at fishponds every year are good compost for farm work.
A characteristic feature in the production of fries is that the farm installed a natural hatching ground in fishponds.
There are several hatching tanks and circular hatching places that can hatch millions of fish eggs at one time.
Meanwhile, favourable water conditions are provided at each fishpond for ensuring temperature and water quality appropriate for the activities and growth fish.
As a result, the fish farm has overfulfilled its annual production plans for different kinds of fries, stocks the Taedong and other rivers and streams with fries and sends them to fish farms of different industrial establishments and cooperative farms.
The fish farm is now concentrating its all energies on fulfilling its fry production plan which has doubled as compared to last year.